diff --git a/.project b/.project
deleted file mode 100644
index c3ef5f7..0000000
--- a/.project
+++ /dev/null
@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<projectDescription>
-	<name>JavaSeTools</name>
-	<comment></comment>
-	<projects>
-	</projects>
-	<buildSpec>
-		<buildCommand>
-			<name>org.eclipse.jdt.core.javabuilder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
-	</buildSpec>
-	<natures>
-		<nature>org.eclipse.jdt.core.javanature</nature>
-	</natures>
-</projectDescription>
diff --git a/lib/zxing-core-3.3.0.jar b/lib/zxing-core-3.3.0.jar
new file mode 100644
index 0000000..94f7406
Binary files /dev/null and b/lib/zxing-core-3.3.0.jar differ
diff --git a/src/com/qq986945193/javasetools/demo/QRCode.java b/src/com/qq986945193/javasetools/demo/QRCode.java
new file mode 100644
index 0000000..ef660e6
--- /dev/null
+++ b/src/com/qq986945193/javasetools/demo/QRCode.java
@@ -0,0 +1,88 @@
+package com.qq986945193.javasetools.demo;
+
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Hashtable;
+
+import javax.imageio.ImageIO;
+
+import com.google.zxing.BarcodeFormat;
+import com.google.zxing.BinaryBitmap;
+import com.google.zxing.DecodeHintType;
+import com.google.zxing.EncodeHintType;
+import com.google.zxing.LuminanceSource;
+import com.google.zxing.MultiFormatReader;
+import com.google.zxing.MultiFormatWriter;
+import com.google.zxing.NotFoundException;
+import com.google.zxing.Result;
+import com.google.zxing.common.BitMatrix;
+import com.google.zxing.common.HybridBinarizer;
+import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
+import com.qq986945193.javasetools.constant.Api;
+import com.qq986945193.javasetools.utils.BufferedImageLuminanceSource;
+import com.qq986945193.javasetools.utils.MatrixToImageWriter;
+
+public class QRCode {
+	public static void main(String[] args) {
+//		encodeQrcode();
+		decodeQrcode();
+
+	}
+
+	/**
+	 * 将文字生成二维码
+	 */
+	private static void encodeQrcode() {
+		int height = 300;
+		int width = 300;
+		String format = "png";
+		String url = Api.CSDN_BLOG_DAVID;
+		// 定义二维码的参数
+		HashMap h = new HashMap();
+		h.put(EncodeHintType.CHARACTER_SET, "utf-8");// 字符集
+		h.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);// 纠错等级
+		h.put(EncodeHintType.MARGIN, 2);// 图片的边距
+		// 生成二维码
+		try {
+			/*
+			 * BarcodeFormat.QR_CODE 二维码的的格式
+			 */
+			BitMatrix bitMatrix = new MultiFormatWriter().encode(url, BarcodeFormat.QR_CODE, width, height, h);
+			// Path file = new File("E:/img.png").toPath();// 生成图片路径
+			File file = new File("E:/IMG.PNG");
+			MatrixToImageWriter.writeToFile(bitMatrix, format, file);
+			System.out.println("生成成功");
+		} catch (Exception e) {
+			e.printStackTrace();
+			System.out.println("生成失败");
+			
+		}
+	}
+
+
+	/**
+	 * 将二维码解析为文字
+	 */
+	private static void decodeQrcode() {
+		BufferedImage bufferedImage = null;
+		try {
+			bufferedImage = ImageIO.read(new File("E:/IMG.PNG"));
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+		LuminanceSource source = new BufferedImageLuminanceSource(bufferedImage);
+		BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
+		Hashtable<DecodeHintType, String> hints = new Hashtable<DecodeHintType, String>();
+		hints.put(DecodeHintType.CHARACTER_SET, "GBK");
+		Result result = null;
+		try {
+			result = new MultiFormatReader().decode(bitmap, hints);
+		} catch (NotFoundException e) {
+			e.printStackTrace();
+		}
+		System.out.println(result.toString());
+	}
+
+}
diff --git a/src/com/qq986945193/javasetools/knowledge/BCryptIntroduce.java b/src/com/qq986945193/javasetools/knowledge/BCryptIntroduce.java
new file mode 100644
index 0000000..1bdbf0e
--- /dev/null
+++ b/src/com/qq986945193/javasetools/knowledge/BCryptIntroduce.java
@@ -0,0 +1,30 @@
+package com.qq986945193.javasetools.knowledge;
+
+import com.qq986945193.javasetools.utils.BCryptUtils;
+
+/**
+ * Bcrypt的简单用法
+ * 
+ * @Author ：程序员小冰
+ * @新浪微博 ：http://weibo.com/mcxiaobing
+ * @GitHub: https://github.com/QQ986945193
+ */
+public class BCryptIntroduce {
+	public static void main(String[] args) {
+		// 首次定义一个密码
+		String password = "password";
+		// 核心。通过调用BCrypt类的静态方法hashpw对password进行加密。第二个参数就是我们平时所说的加盐。
+		String hashed = BCryptUtils.hashpw(password, BCryptUtils.gensalt());
+		// 这个是所谓的加盐后，进行加密。
+		//String hashed2 = BCryptUtils.hashpw(password, BCryptUtils.gensalt(12));
+		// 输出加密后的字符串
+		System.out.println(hashed);
+		
+		String Authenticator = "password";
+		// 对用户后来输入的密码进行比较。如果能够匹配，返回true。
+		if (BCryptUtils.checkpw(Authenticator, hashed))
+			System.out.println("It matches");
+		else
+			System.out.println("It does not match");
+	}
+}
diff --git a/src/com/qq986945193/javasetools/knowledge/DateIntroduce.java b/src/com/qq986945193/javasetools/knowledge/DateIntroduce.java
new file mode 100644
index 0000000..ef6ec2e
--- /dev/null
+++ b/src/com/qq986945193/javasetools/knowledge/DateIntroduce.java
@@ -0,0 +1,46 @@
+package com.qq986945193.javasetools.knowledge;
+/**
+ * @Author ：程序员小冰
+ * @新浪微博 ：http://weibo.com/mcxiaobing
+ * @GitHub: https://github.com/QQ986945193
+ * @CSDN博客: http://blog.csdn.net/qq_21376985
+ * @OsChina空间: https://my.oschina.net/mcxiaobing
+ */
+import java.text.SimpleDateFormat;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.GregorianCalendar;
+
+import org.junit.Test;
+
+/**
+ * Date的使用简单介绍
+ */
+public class DateIntroduce {
+	/**
+	 * 获取当前时间，精确到毫秒
+	 */
+	@Test
+	public void getCurrentTimeMillion() {
+		System.out.println(new SimpleDateFormat("yyyyMMddHHmmssSSS").format(new Date()));
+		// method 1
+		Calendar nowtime = new GregorianCalendar();
+		String strDateTime = "[" + String.format("%04d", nowtime.get(Calendar.YEAR)) + "/"
+				+ String.format("%02d", nowtime.get(Calendar.MONTH)) + "/"
+				+ String.format("%02d", nowtime.get(Calendar.DATE)) + " "
+				+ String.format("%02d", nowtime.get(Calendar.HOUR)) + ":"
+				+ String.format("%02d", nowtime.get(Calendar.MINUTE)) + ":"
+				+ String.format("%02d", nowtime.get(Calendar.SECOND)) + "."
+				+ String.format("%03d", nowtime.get(Calendar.MILLISECOND)) + "]";
+		System.out.println(strDateTime);
+
+		// method 2
+		String msg = "";
+		Date date = new Date();
+		SimpleDateFormat sdf = new SimpleDateFormat("YYYY/MM/dd HH:mm:ss.SSS");
+		msg += "[" + sdf.format(date) + "]";
+
+		System.out.println(msg);
+
+	}
+}
diff --git a/src/com/qq986945193/javasetools/knowledge/EnumIntroduce.java b/src/com/qq986945193/javasetools/knowledge/EnumIntroduce.java
new file mode 100644
index 0000000..60426e0
--- /dev/null
+++ b/src/com/qq986945193/javasetools/knowledge/EnumIntroduce.java
@@ -0,0 +1,22 @@
+package com.qq986945193.javasetools.knowledge;
+
+/* @Author ：程序员小冰
+*/
+/**
+ * enum枚举类的简单介绍。
+ */
+public class EnumIntroduce {
+
+	public static void main(String[] args) {
+		System.out.println(GradleEnum.GET);
+		System.out.println(GradleEnum.POST);
+	}
+
+}
+
+/**
+ * 这是一个枚举类
+ */
+enum GradleEnum {
+	GET, POST,
+}
\ No newline at end of file
diff --git a/src/com/qq986945193/javasetools/knowledge/ForEach.java b/src/com/qq986945193/javasetools/knowledge/ForEach.java
index f1b17a6..0889547 100644
--- a/src/com/qq986945193/javasetools/knowledge/ForEach.java
+++ b/src/com/qq986945193/javasetools/knowledge/ForEach.java
@@ -8,49 +8,85 @@
  */
 
 import java.util.ArrayList;
+import java.util.Iterator;
 import java.util.List;
 
+import org.junit.Test;
+
 /**
  * 增强for循环的使用详解
  */
 public class ForEach {
-    /**
-     * 增强for循环的语法：
-     * <p/>
-     * for(数据类型 自定义变量名:要循环的集合或者数组){
-     * 这里面写所要遍历的元素或者适当代码即可
-     * }
-     */
-
-
-    public static void main(String args[]) {
-        //定义一个数组
-        int arrs[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 0};
-        int sum = 0;
-        for (int i : arrs) {
-            sum += arrs[i];
-            //打印出每个元素的值
-            System.out.println(i);
-        }
-        //打印出此数组的和
-        System.out.print(sum);
-
-        forList();
-    }
-
-    /**
-     * 增强for循环遍历集合元素
-     */
-    private static void forList() {
-        List<String> lists = new ArrayList();
-        lists.add("hello");
-        lists.add("1");
-        lists.add("2");
-        lists.add("3");
-        System.out.println(lists.size());
-        for (String string:lists){
-            System.out.println(string);
-        }
-
-    }
+	/**
+	 * 用来如果集合删除，最好使用iterator
+	 * 不要在 foreach 循环里进行元素的 remove / add 操作。 remove 元素请使用 Iterator
+		方式，如果并发操作，需要对 Iterator 对象加锁。
+	 */
+	@Test
+	public void testFor() {
+		List<String> list = new ArrayList<String>();
+		list.add("1");
+		list.add("2");
+		
+		// 正例：
+		Iterator<String> iterator = list.iterator();
+		while (iterator.hasNext()) {
+			String item = iterator.next();
+			if ("2".equals(item)) {
+				iterator.remove();
+			}
+			
+		}
+		
+		// 反例：
+	/*	for (String item : list) {
+			if ("2".equals(item)) {
+				list.remove(item);
+			}
+			System.out.println(item);
+		}*/
+		
+		//执行完删除之后，进行遍历
+		for (String itemEnd : list) {
+			System.out.println(itemEnd);
+		}
+	}
+
+	/**
+	 * 增强for循环的语法：
+	 * <p/>
+	 * for(数据类型 自定义变量名:要循环的集合或者数组){ 这里面写所要遍历的元素或者适当代码即可 }
+	 */
+
+	public static void main(String args[]) {
+		// 定义一个数组
+		int arrs[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 };
+		int sum = 0;
+		for (int i : arrs) {
+			sum += arrs[i];
+			// 打印出每个元素的值
+			System.out.println(i);
+		}
+		// 打印出此数组的和
+		System.out.print(sum);
+
+		forList();
+	}
+
+	/**
+	 * 增强for循环遍历集合元素
+	 */
+	private static void forList() {
+		List<String> lists = new ArrayList();
+		lists.add("hello");
+		lists.add("1");
+		lists.add("2");
+		lists.add("3");
+		System.out.println(lists.size());
+		for (String string : lists) {
+			System.out.println(string);
+		}
+
+	}
+
 }
diff --git a/src/com/qq986945193/javasetools/knowledge/IntegerIntroduce.java b/src/com/qq986945193/javasetools/knowledge/IntegerIntroduce.java
new file mode 100644
index 0000000..496c3cd
--- /dev/null
+++ b/src/com/qq986945193/javasetools/knowledge/IntegerIntroduce.java
@@ -0,0 +1,33 @@
+package com.qq986945193.javasetools.knowledge;
+
+import org.junit.Test;
+
+/**
+ * 进制转换的一个小功能
+ * @Author ：程序员小冰
+ * @新浪微博 ：http://weibo.com/mcxiaobing
+ * @GitHub: https://github.com/QQ986945193
+ */
+public class IntegerIntroduce {
+
+	/**
+	 * 进制转换的功能	java中进行二进制，八进制，十六进制，十进制间进行相互转换      
+	 */
+	@Test
+	public void fun1() {
+		int num = 2043;
+		//十进制转成十六进制：
+		System.out.println(Integer.toHexString(num));
+		//十进制转成八进制
+		System.out.println(Integer.toOctalString(num));
+		//十进制转成二进制
+		System.out.println(Integer.toBinaryString(num));
+		//十六进制转成十进制
+		System.out.println(Integer.parseInt("8C",16));
+		//System.out.println(Integer.valueOf("0x11",16).toString());
+		//八进制转成十进制
+		System.out.println(Integer.valueOf("776",8).toString());
+		//二进制转十进制
+		System.out.println(Integer.valueOf("0101",2).toString());
+	}
+}
diff --git a/src/com/qq986945193/javasetools/knowledge/IoIntroduce.java b/src/com/qq986945193/javasetools/knowledge/IoIntroduce.java
index f2eea72..09dbeaf 100644
--- a/src/com/qq986945193/javasetools/knowledge/IoIntroduce.java
+++ b/src/com/qq986945193/javasetools/knowledge/IoIntroduce.java
@@ -1,326 +1,326 @@
-package com.qq986945193.javasetools.knowledge;
-
-import java.io.BufferedInputStream;
-import java.io.BufferedOutputStream;
-import java.io.BufferedReader;
-import java.io.BufferedWriter;
-import java.io.DataInputStream;
-import java.io.DataOutputStream;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
-import java.io.FileReader;
-import java.io.FileWriter;
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.io.OutputStreamWriter;
-
-/**
- * @Author ：程序员小冰
- * @新浪微博 ：http://weibo.com/mcxiaobing
- * @GitHub: https://github.com/QQ986945193
- * @CSDN博客: http://blog.csdn.net/qq_21376985
- * @OsChina空间: https://my.oschina.net/mcxiaobing
- */
-/**
- * 
- * @author David Zheng
- * 
- *         IO流的一些复制读取操作详解代码。IO知识点详解
- * 
- *         1.读文件的时候，文件目录一定要存在，否则会抛出异常，文件目录不存在。 2.写文件的时候，会自动创建文件。
- * 
- */
-public class IoIntroduce {
-	/**
-	 * ①字节流复制文件(FileInputStream/FileOutputStream和BufferedInputSream/
-	 * BufferedOutputStream/DataInputStream/DataOutputStream/)
-	 * ②字符流复制文件(InputStreamReader/OutputStreamWriter、FileReader
-	 * /FileWriter、BufferedReader/BufferedWriter)
-	 * BufferedReader/BufferedWriter字符缓冲区流有三种方法，多了一种可以直接读取一行，一次写入一个字符串。其它都是两种方法。
-	 * 
-	 */
-	public static void main(String[] args) throws Exception {
-		// 字节流 FileInputStream是InputStream的子类
-		FileInputStream fis = new FileInputStream("david.txt");
-		FileOutputStream fos = new FileOutputStream("xiaobing.txt");
-
-		DataInputStream dis = new DataInputStream(fis);
-		DataOutputStream dos = new DataOutputStream(fos);
-
-		// 字节缓冲区流
-		BufferedInputStream bis = new BufferedInputStream(new FileInputStream("david.txt"));
-		BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream("xiaobing.txt"));
-
-		// 字符流
-		InputStreamReader isr = new InputStreamReader(new FileInputStream("david.txt"));
-		OutputStreamWriter osw = new OutputStreamWriter(new FileOutputStream("xiaobing.txt"));
-		// InputStreamReader是FileReader的父类，FileReader是InputStreamReader的简化版
-		FileReader fr = new FileReader("newfile.java");
-		FileWriter fw = new FileWriter("newfile.java");
-
-		// 字符缓冲区流
-		BufferedReader br = new BufferedReader(new FileReader("newfile.java"));
-		BufferedWriter bw = new BufferedWriter(new FileWriter("newfile.java"));
-
-		// 字节流使用方法
-		copyInputStream1(fis, fos);
-		copyInputStream2(fis, fos);
-		copyInputStream3(dis, dos);
-
-		// 缓冲字节流使用方法
-		copyBufferedInputStream1(bis, bos);
-		copyBufferedInputStream2(bis, bos);
-
-		// 字符流使用方法
-		copyInputStreamReader1(isr, osw);
-		copyInputStreamReader2(isr, osw);
-		// 普通方法读取字符流
-		copyFileReader1(fr, fw);
-		copyFileReader2(fr, fw);
-
-		// 使用缓冲字符流
-		copyBufferedReader1(br, bw);
-		copyBufferedReader2(br, bw);
-		copyBufferedReader3(br, bw);
-
-	}
-
-	/**
-	 * 字节读取方法 1 使用字节流一次读取一个字节
-	 */
-	private static void copyInputStream1(FileInputStream fis, FileOutputStream fos) throws IOException {
-		// 一次读取一个字节 使用字节流
-		int bys = 0;
-		while ((bys = fis.read()) != -1) {
-			fos.write(bys);
-			fos.flush();
-		}
-		// 关闭流
-		if (fos != null) {
-			fos.close();
-		}
-		if (fis != null) {
-			fis.close();
-		}
-	}
-
-	/**
-	 * 字节读取方法2 使用字节流一次读取一个字节数组
-	 */
-	private static void copyInputStream2(FileInputStream fis, FileOutputStream fos) throws IOException {
-		// 一次读取一个字节数组 即 一次读取1024个字节 使用字节流
-		byte[] datas = new byte[1024];
-		int len = 0;
-		while ((len = fis.read(datas)) != -1) {
-			fos.write(datas, 0, len);
-			fos.flush();
-		}
-		// 关闭流
-		if (fos != null) {
-			fos.close();
-		}
-		if (fis != null) {
-			fis.close();
-		}
-	}
-
-	/**
-	 * 3,字节流 读取，一个字节一个字节的读取
-	 */
-	private static void copyInputStream3(DataInputStream dis, DataOutputStream dos) throws IOException {
-		// 使用字节流一次读取一个字节
-		// dis.available() 获取到可读取的字节总数
-		if (dis.available() > 0) {
-			byte[] datas = new byte[dis.available()];
-			int num = 0;
-			while (dis.available() > 0) {
-				datas[num] = dis.readByte();
-				++num;
-			}
-			if (dos != null) {
-				dos.close();
-			}
-			if (dis != null) {
-				dis.close();
-			}
-		}
-
-	}
-
-	/**
-	 * 1字节流读取方法 一次读取一个字节，使用缓冲字节流
-	 */
-	private static void copyBufferedInputStream1(BufferedInputStream bis, BufferedOutputStream bos) throws IOException {
-		// 一次读取一个字节，使用缓冲字节流 缓冲流可不关闭
-		int bys = 0;
-		while ((bys = bis.read()) != -1) {
-			bos.write(bys);
-			bos.flush();
-		}
-	}
-
-	/**
-	 * 2字节流读取方法 一次读取一个字节数组，使用缓冲字节流
-	 * 
-	 */
-	private static void copyBufferedInputStream2(BufferedInputStream bis, BufferedOutputStream bos) throws IOException {
-		// 一次读取一个字节数组 即 一次读取1024个字节 使用缓冲字节流
-		byte[] datas = new byte[1024];
-		int len = 0;
-		while ((len = bis.read(datas)) != -1) {
-			bos.write(datas, 0, len);
-			bos.flush();
-		}
-		// 关闭流
-		if (bos != null) {
-			bos.close();
-		}
-		if (bis != null) {
-			bis.close();
-		}
-	}
-
-	/**
-	 * 1,字符流读取方法 使用字符流一次读取一个字符
-	 */
-	private static void copyInputStreamReader1(InputStreamReader isr, OutputStreamWriter osw) throws IOException {
-		// 一次读取一个字符
-		// InputStreamReader是FileReader的父类
-		int len = 0;
-		while ((len = isr.read()) != -1) {
-			osw.write(len);
-			osw.flush();
-		}
-		// 关闭流
-		if (osw != null) {
-			osw.close();
-		}
-		if (isr != null) {
-			isr.close();
-		}
-
-	}
-
-	/**
-	 * 2,字符流读取方法 一次读取一个字符数组，使用字符流
-	 * 
-	 */
-	private static void copyInputStreamReader2(InputStreamReader isr, OutputStreamWriter osw) throws IOException {
-		// 一次读取一个字符数组 即 一次读取1024个字符
-		char[] datas = new char[1024];
-		int len = 0;
-		while ((len = isr.read()) != -1) {
-			osw.write(datas, 0, len);
-			osw.flush();
-		}
-		// 关闭流
-		if (osw != null) {
-			osw.close();
-		}
-		if (isr != null) {
-			isr.close();
-		}
-
-	}
-
-	/**
-	 * 1,普通字符流读取方法 使用字符流一次读取一个字符
-	 */
-	private static void copyFileReader1(FileReader fr, FileWriter fw) throws IOException {
-		// 普通方法 使用字符流一次读取一个字符
-		int len = 0;
-		while ((len = fr.read()) != -1) {
-			fw.write(len);
-			fw.flush();
-		}
-		// 关闭流
-		if (fw != null) {
-			fw.close();
-		}
-		if (fr != null) {
-			fr.close();
-		}
-	}
-
-	/**
-	 * 2,普通字符流读取方法 一次读取一个字符数组，使用字符流
-	 */
-	private static void copyFileReader2(FileReader fr, FileWriter fw) throws IOException {
-		// 普通方法 一次读取一个字符数组，使用字符流 一次读取1024个字符
-		char[] datas = new char[1024];
-		int len = 0;
-		while ((len = fr.read(datas)) != -1) {
-			fw.write(datas, 0, len);
-			fw.flush();
-		}
-		// 关闭流
-		if (fw != null) {
-			fw.close();
-		}
-		if (fr != null) {
-			fr.close();
-		}
-
-	}
-
-	/**
-	 * 1,缓冲字符流 一次读取一个字符
-	 */
-	private static void copyBufferedReader1(BufferedReader br, BufferedWriter bw) throws IOException {
-		// 缓冲字符流 一次读取一个字符
-		int len = 0;
-		while ((len = br.read()) != -1) {
-			bw.write(len);
-			bw.flush();
-		}
-		// 关闭流
-		if (bw != null) {
-			bw.close();
-		}
-		if (br != null) {
-			br.close();
-		}
-	}
-
-	/**
-	 * 2,缓冲字符流 一次读取一个字符数组
-	 */
-	private static void copyBufferedReader2(BufferedReader br, BufferedWriter bw) throws IOException {
-		// 缓冲字符流 一次读取一个字符数组 即一次读取1024个字符
-		char[] datas = new char[1024];
-		int len = 0;
-		while ((len = br.read(datas)) != -1) {
-			bw.write(datas, 0, len);
-			bw.flush();
-		}
-		// 关闭流
-		if (bw != null) {
-			bw.close();
-		}
-		if (br != null) {
-			br.close();
-		}
-	}
-
-	/**
-	 * 3,缓冲字符流 一次读取一行
-	 */
-	private static void copyBufferedReader3(BufferedReader br, BufferedWriter bw) throws IOException {
-		// 使用缓冲字符流，一次读取一行
-		String len = null;
-		while ((len = br.readLine()) != null) {
-			bw.write(len);
-			bw.newLine();
-			bw.flush();
-		}
-		// 关闭流
-		if (bw != null) {
-			bw.close();
-		}
-		if (br != null) {
-			br.close();
-		}
-
-	}
-}
+package com.qq986945193.javasetools.knowledge;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.OutputStreamWriter;
+
+/**
+ * @Author ：程序员小冰
+ * @新浪微博 ：http://weibo.com/mcxiaobing
+ * @GitHub: https://github.com/QQ986945193
+ * @CSDN博客: http://blog.csdn.net/qq_21376985
+ * @OsChina空间: https://my.oschina.net/mcxiaobing
+ */
+/**
+ * 
+ * @author David Zheng
+ * 
+ *         IO流的一些复制读取操作详解代码。IO知识点详解
+ * 
+ *         1.读文件的时候，文件目录一定要存在，否则会抛出异常，文件目录不存在。 2.写文件的时候，会自动创建文件。
+ * 
+ */
+public class IoIntroduce {
+	/**
+	 * ①字节流复制文件(FileInputStream/FileOutputStream和BufferedInputSream/
+	 * BufferedOutputStream/DataInputStream/DataOutputStream/)
+	 * ②字符流复制文件(InputStreamReader/OutputStreamWriter、FileReader
+	 * /FileWriter、BufferedReader/BufferedWriter)
+	 * BufferedReader/BufferedWriter字符缓冲区流有三种方法，多了一种可以直接读取一行，一次写入一个字符串。其它都是两种方法。
+	 * 
+	 */
+	public static void main(String[] args) throws Exception {
+		// 字节流 FileInputStream是InputStream的子类
+		FileInputStream fis = new FileInputStream("david.txt");
+		FileOutputStream fos = new FileOutputStream("xiaobing.txt");
+
+		DataInputStream dis = new DataInputStream(fis);
+		DataOutputStream dos = new DataOutputStream(fos);
+
+		// 字节缓冲区流
+		BufferedInputStream bis = new BufferedInputStream(new FileInputStream("david.txt"));
+		BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream("xiaobing.txt"));
+
+		// 字符流
+		InputStreamReader isr = new InputStreamReader(new FileInputStream("david.txt"));
+		OutputStreamWriter osw = new OutputStreamWriter(new FileOutputStream("xiaobing.txt"));
+		// InputStreamReader是FileReader的父类，FileReader是InputStreamReader的简化版
+		FileReader fr = new FileReader("newfile.java");
+		FileWriter fw = new FileWriter("newfile.java");
+
+		// 字符缓冲区流
+		BufferedReader br = new BufferedReader(new FileReader("newfile.java"));
+		BufferedWriter bw = new BufferedWriter(new FileWriter("newfile.java"));
+
+		// 字节流使用方法
+		copyInputStream1(fis, fos);
+		copyInputStream2(fis, fos);
+		copyInputStream3(dis, dos);
+
+		// 缓冲字节流使用方法
+		copyBufferedInputStream1(bis, bos);
+		copyBufferedInputStream2(bis, bos);
+
+		// 字符流使用方法
+		copyInputStreamReader1(isr, osw);
+		copyInputStreamReader2(isr, osw);
+		// 普通方法读取字符流
+		copyFileReader1(fr, fw);
+		copyFileReader2(fr, fw);
+
+		// 使用缓冲字符流
+		copyBufferedReader1(br, bw);
+		copyBufferedReader2(br, bw);
+		copyBufferedReader3(br, bw);
+
+	}
+
+	/**
+	 * 字节读取方法 1 使用字节流一次读取一个字节
+	 */
+	private static void copyInputStream1(FileInputStream fis, FileOutputStream fos) throws IOException {
+		// 一次读取一个字节 使用字节流
+		int bys = 0;
+		while ((bys = fis.read()) != -1) {
+			fos.write(bys);
+			fos.flush();
+		}
+		// 关闭流
+		if (fos != null) {
+			fos.close();
+		}
+		if (fis != null) {
+			fis.close();
+		}
+	}
+
+	/**
+	 * 字节读取方法2 使用字节流一次读取一个字节数组
+	 */
+	private static void copyInputStream2(FileInputStream fis, FileOutputStream fos) throws IOException {
+		// 一次读取一个字节数组 即 一次读取1024个字节 使用字节流
+		byte[] datas = new byte[1024];
+		int len = 0;
+		while ((len = fis.read(datas)) != -1) {
+			fos.write(datas, 0, len);
+			fos.flush();
+		}
+		// 关闭流
+		if (fos != null) {
+			fos.close();
+		}
+		if (fis != null) {
+			fis.close();
+		}
+	}
+
+	/**
+	 * 3,字节流 读取，一个字节一个字节的读取
+	 */
+	private static void copyInputStream3(DataInputStream dis, DataOutputStream dos) throws IOException {
+		// 使用字节流一次读取一个字节
+		// dis.available() 获取到可读取的字节总数
+		if (dis.available() > 0) {
+			byte[] datas = new byte[dis.available()];
+			int num = 0;
+			while (dis.available() > 0) {
+				datas[num] = dis.readByte();
+				++num;
+			}
+			if (dos != null) {
+				dos.close();
+			}
+			if (dis != null) {
+				dis.close();
+			}
+		}
+
+	}
+
+	/**
+	 * 1字节流读取方法 一次读取一个字节，使用缓冲字节流
+	 */
+	private static void copyBufferedInputStream1(BufferedInputStream bis, BufferedOutputStream bos) throws IOException {
+		// 一次读取一个字节，使用缓冲字节流 缓冲流可不关闭
+		int bys = 0;
+		while ((bys = bis.read()) != -1) {
+			bos.write(bys);
+			bos.flush();
+		}
+	}
+
+	/**
+	 * 2字节流读取方法 一次读取一个字节数组，使用缓冲字节流
+	 * 
+	 */
+	private static void copyBufferedInputStream2(BufferedInputStream bis, BufferedOutputStream bos) throws IOException {
+		// 一次读取一个字节数组 即 一次读取1024个字节 使用缓冲字节流
+		byte[] datas = new byte[1024];
+		int len = 0;
+		while ((len = bis.read(datas)) != -1) {
+			bos.write(datas, 0, len);
+			bos.flush();
+		}
+		// 关闭流
+		if (bos != null) {
+			bos.close();
+		}
+		if (bis != null) {
+			bis.close();
+		}
+	}
+
+	/**
+	 * 1,字符流读取方法 使用字符流一次读取一个字符
+	 */
+	private static void copyInputStreamReader1(InputStreamReader isr, OutputStreamWriter osw) throws IOException {
+		// 一次读取一个字符
+		// InputStreamReader是FileReader的父类
+		int len = 0;
+		while ((len = isr.read()) != -1) {
+			osw.write(len);
+			osw.flush();
+		}
+		// 关闭流
+		if (osw != null) {
+			osw.close();
+		}
+		if (isr != null) {
+			isr.close();
+		}
+
+	}
+
+	/**
+	 * 2,字符流读取方法 一次读取一个字符数组，使用字符流
+	 * 
+	 */
+	private static void copyInputStreamReader2(InputStreamReader isr, OutputStreamWriter osw) throws IOException {
+		// 一次读取一个字符数组 即 一次读取1024个字符
+		char[] datas = new char[1024];
+		int len = 0;
+		while ((len = isr.read()) != -1) {
+			osw.write(datas, 0, len);
+			osw.flush();
+		}
+		// 关闭流
+		if (osw != null) {
+			osw.close();
+		}
+		if (isr != null) {
+			isr.close();
+		}
+
+	}
+
+	/**
+	 * 1,普通字符流读取方法 使用字符流一次读取一个字符
+	 */
+	private static void copyFileReader1(FileReader fr, FileWriter fw) throws IOException {
+		// 普通方法 使用字符流一次读取一个字符
+		int len = 0;
+		while ((len = fr.read()) != -1) {
+			fw.write(len);
+			fw.flush();
+		}
+		// 关闭流
+		if (fw != null) {
+			fw.close();
+		}
+		if (fr != null) {
+			fr.close();
+		}
+	}
+
+	/**
+	 * 2,普通字符流读取方法 一次读取一个字符数组，使用字符流
+	 */
+	private static void copyFileReader2(FileReader fr, FileWriter fw) throws IOException {
+		// 普通方法 一次读取一个字符数组，使用字符流 一次读取1024个字符
+		char[] datas = new char[1024];
+		int len = 0;
+		while ((len = fr.read(datas)) != -1) {
+			fw.write(datas, 0, len);
+			fw.flush();
+		}
+		// 关闭流
+		if (fw != null) {
+			fw.close();
+		}
+		if (fr != null) {
+			fr.close();
+		}
+
+	}
+
+	/**
+	 * 1,缓冲字符流 一次读取一个字符
+	 */
+	private static void copyBufferedReader1(BufferedReader br, BufferedWriter bw) throws IOException {
+		// 缓冲字符流 一次读取一个字符
+		int len = 0;
+		while ((len = br.read()) != -1) {
+			bw.write(len);
+			bw.flush();
+		}
+		// 关闭流
+		if (bw != null) {
+			bw.close();
+		}
+		if (br != null) {
+			br.close();
+		}
+	}
+
+	/**
+	 * 2,缓冲字符流 一次读取一个字符数组
+	 */
+	private static void copyBufferedReader2(BufferedReader br, BufferedWriter bw) throws IOException {
+		// 缓冲字符流 一次读取一个字符数组 即一次读取1024个字符
+		char[] datas = new char[1024];
+		int len = 0;
+		while ((len = br.read(datas)) != -1) {
+			bw.write(datas, 0, len);
+			bw.flush();
+		}
+		// 关闭流
+		if (bw != null) {
+			bw.close();
+		}
+		if (br != null) {
+			br.close();
+		}
+	}
+
+	/**
+	 * 3,缓冲字符流 一次读取一行
+	 */
+	private static void copyBufferedReader3(BufferedReader br, BufferedWriter bw) throws IOException {
+		// 使用缓冲字符流，一次读取一行
+		String len = null;
+		while ((len = br.readLine()) != null) {
+			bw.write(len);
+			bw.newLine();
+			bw.flush();
+		}
+		// 关闭流
+		if (bw != null) {
+			bw.close();
+		}
+		if (br != null) {
+			br.close();
+		}
+
+	}
+}
diff --git a/src/com/qq986945193/javasetools/knowledge/JavaSe.java b/src/com/qq986945193/javasetools/knowledge/JavaSe.java
index 475fdc8..ab4f544 100644
--- a/src/com/qq986945193/javasetools/knowledge/JavaSe.java
+++ b/src/com/qq986945193/javasetools/knowledge/JavaSe.java
@@ -1,9 +1,25 @@
 package com.qq986945193.javasetools.knowledge;
 
+import org.junit.Test;
+
 public class JavaSe {
 
 	public static void main(String[] args) {
+		// 计算商与余数
+		System.out.println(34/10);
+		System.out.println(30%10);
+		// 计算取与分开的结果
+		String urlString = "method=findByPage&pc=9";
+		int index = urlString.lastIndexOf("&pc=");
+		System.out.println(index);
+		System.out.println(urlString.substring(0, index));
 		
+		String str = "a,b,c,,";
+		String[] ary = str.split(",");
+		// 预期大于 3，结果是 3
+		System.out.println(ary.length);
 	}
-
+	
+	
+	
 }
diff --git a/src/com/qq986945193/javasetools/knowledge/MapIntroduce.java b/src/com/qq986945193/javasetools/knowledge/MapIntroduce.java
index d39addd..85076a9 100644
--- a/src/com/qq986945193/javasetools/knowledge/MapIntroduce.java
+++ b/src/com/qq986945193/javasetools/knowledge/MapIntroduce.java
@@ -1,95 +1,95 @@
-package com.qq986945193.javasetools.knowledge;
-
-import java.util.Iterator;
-import java.util.LinkedHashMap;
-import java.util.Map;
-import java.util.Set;
-
-/**
- * map的一些简单介绍
- */
-public class MapIntroduce {
-	public static void main(String[] args) {
-		addData(map);
-		// getMapVauleOneMethod(map);
-		// getMapVauleTwoMethod(map);
-		getMapVauleThreeMethod(map);
-
-	}
-	/**
-	 * 不会按照我们进行put的顺序输出
-	 */
-	// private static Map<String, String> map = new HashMap<>();
-
-	/**
-	 * 可以按照我们put的顺序进行存储map数据
-	 */
-	private static Map<String, String> map = new LinkedHashMap<>();
-
-	/**
-	 * 往map里面添加数据
-	 *
-	 * @param map
-	 */
-	public static void addData(Map<String, String> map) {
-		map.put("a", "a");
-		map.put("b", "b");
-		map.put("c", "c");
-		map.put("d", "d");
-	}
-
-	/**
-	 * 取出map中的值 第一种方法 先取出所有键，再取出值
-	 */
-	public static void getMapVauleOneMethod(Map<String, String> map) {
-		if (map != null) {
-			// 将map中的所有键去取出来，用迭代器进行读取
-			Set set = map.keySet();
-			if (set != null) {
-				Iterator iterator = set.iterator();
-				while (iterator.hasNext()) {
-					// 取出单个的map键
-					String key = (String) iterator.next();
-					String value = map.get(key);
-					System.out.println("key = " + key + "value" + value);
-				}
-			}
-
-		}
-	}
-
-	/**
-	 * 取出map中的值 第二种方法
-	 */
-
-	public static void getMapVauleTwoMethod(Map<String, String> map) {
-		if (map != null) {
-			Set set = map.entrySet();
-			if (set != null) {
-				Iterator iterator = set.iterator();
-				while (iterator.hasNext()) {
-					Map.Entry entry = (Map.Entry) iterator.next();
-					String key = (String) entry.getKey();
-					String value = (String) entry.getValue();
-					System.out.println("key = " + key + "value" + value);
-				}
-			}
-
-		}
-
-	}
-
-	/**
-	 * 取出map中的值 第三种方法
-	 */
-	public static void getMapVauleThreeMethod(Map<String, String> map) {
-		if (map != null) {
-			for (Map.Entry<String, String> entry : map.entrySet()) {
-				String key = entry.getKey();
-				String value = entry.getValue();
-				System.out.println("key = " + key + "value=" + value);
-			}
-		}
-	}
-
-}
+package com.qq986945193.javasetools.knowledge;
+
+import java.util.Iterator;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import java.util.Set;
+
+/**
+ * map的一些简单介绍.优先使foreach和entrySet
+ */
+public class MapIntroduce {
+	public static void main(String[] args) {
+		addData(map);
+		// getMapVauleOneMethod(map);
+		// getMapVauleTwoMethod(map);
+		getMapVauleThreeMethod(map);
+
+	}
+	/**
+	 * 不会按照我们进行put的顺序输出
+	 */
+	// private static Map<String, String> map = new HashMap<>();
+
+	/**
+	 * 可以按照我们put的顺序进行存储map数据
+	 */
+	private static Map<String, String> map = new LinkedHashMap<>();
+
+	/**
+	 * 往map里面添加数据
+	 *
+	 * @param map
+	 */
+	public static void addData(Map<String, String> map) {
+		map.put("a", "a");
+		map.put("b", "b");
+		map.put("c", "c");
+		map.put("d", "d");
+	}
+
+	/**
+	 * 取出map中的值 第一种方法 先取出所有键，再取出值
+	 */
+	public static void getMapVauleOneMethod(Map<String, String> map) {
+		if (map != null) {
+			// 将map中的所有键去取出来，用迭代器进行读取
+			Set set = map.keySet();
+			if (set != null) {
+				Iterator iterator = set.iterator();
+				while (iterator.hasNext()) {
+					// 取出单个的map键
+					String key = (String) iterator.next();
+					String value = map.get(key);
+					System.out.println("key = " + key + "value" + value);
+				}
+			}
+
+		}
+	}
+
+	/**
+	 * 取出map中的值 第二种方法
+	 */
+
+	public static void getMapVauleTwoMethod(Map<String, String> map) {
+		if (map != null) {
+			Set set = map.entrySet();
+			if (set != null) {
+				Iterator iterator = set.iterator();
+				while (iterator.hasNext()) {
+					Map.Entry entry = (Map.Entry) iterator.next();
+					String key = (String) entry.getKey();
+					String value = (String) entry.getValue();
+					System.out.println("key = " + key + "value" + value);
+				}
+			}
+
+		}
+
+	}
+
+	/**
+	 * 取出map中的值 第三种方法
+	 */
+	public static void getMapVauleThreeMethod(Map<String, String> map) {
+		if (map != null) {
+			for (Map.Entry<String, String> entry : map.entrySet()) {
+				String key = entry.getKey();
+				String value = entry.getValue();
+				System.out.println("key = " + key + "value=" + value);
+			}
+		}
+	}
+
+}
diff --git a/src/com/qq986945193/javasetools/knowledge/StringIntroduce.java b/src/com/qq986945193/javasetools/knowledge/StringIntroduce.java
index 7304958..b068b5a 100644
--- a/src/com/qq986945193/javasetools/knowledge/StringIntroduce.java
+++ b/src/com/qq986945193/javasetools/knowledge/StringIntroduce.java
@@ -1,33 +1,37 @@
-package com.qq986945193.javasetools.knowledge;
-
-/**
- * @Author ：程序员小冰
- * @新浪微博 ：http://weibo.com/mcxiaobing
- * @GitHub: https://github.com/QQ986945193
- * @CSDN博客: http://blog.csdn.net/qq_21376985
- * @OsChina空间: https://my.oschina.net/mcxiaobing
- */
-/**
- * 
- * String的一些用法简介
- *
- */
-public class StringIntroduce {
-
-	public static void main(String[] args) {
-		// 转义字符串两边含有双引号
-		String str1 = "\"david\"";
-		System.out.println("转义字符串两边含有双引号：" + str1);
-		// 字符串中间含有双引号
-		String str2 = "david\"is\"java";
-		System.out.println("字符串中间含有双引号：" + str2);
-		// 使用转义字符还可以使字符串包含其他字符
-		String str3 = "\\david";
-		System.out.println("使用转义字符还可以使字符串包含其他字符：" + str3);
-		// 变量使用双引号包括
-		String userName = "david";
-		userName = "java";
-		String str4 = '\"' + userName + '\"';
-		System.out.println("变量使用双引号包括:" + str4);
-	}
-}
+package com.qq986945193.javasetools.knowledge;
+
+/**
+ * @Author ：程序员小冰
+ * @新浪微博 ：http://weibo.com/mcxiaobing
+ * @GitHub: https://github.com/QQ986945193
+ * @CSDN博客: http://blog.csdn.net/qq_21376985
+ * @OsChina空间: https://my.oschina.net/mcxiaobing
+ */
+/**
+ * 
+ * String的一些用法简介
+ *
+ */
+public class StringIntroduce {
+	public static void main(String[] args) {
+	     String tcpStr = "AT+CWSAP_DEF=" + "\"DALIGE\"" + "," + "\"12345678\"" + "," + "11,4";
+
+		// 转义字符串两边含有双引号
+		String str1 = "\"david\"";
+		System.out.println("转义字符串两边含有双引号：" + str1);
+		// 字符串中间含有双引号
+		String str2 = "david\"is\"java";
+		System.out.println("字符串中间含有双引号：" + str2);
+		// 使用转义字符还可以使字符串包含其他字符
+		String str3 = "\\david";
+		System.out.println("使用转义字符还可以使字符串包含其他字符：" + str3);
+		// 变量使用双引号包括
+		String userName = "david";
+		userName = "java";
+		String str4 = '\"' + userName + '\"';
+		System.out.println("变量使用双引号包括:" + str4);
+		System.out.println(tcpStr);
+		
+		
+	}
+}
diff --git a/src/com/qq986945193/javasetools/knowledge/byteIntroduce.java b/src/com/qq986945193/javasetools/knowledge/byteIntroduce.java
new file mode 100644
index 0000000..88da773
--- /dev/null
+++ b/src/com/qq986945193/javasetools/knowledge/byteIntroduce.java
@@ -0,0 +1,110 @@
+package com.qq986945193.javasetools.knowledge;
+
+import java.io.UnsupportedEncodingException;
+
+public class byteIntroduce {
+	
+	
+	public static void main(String[] args) {
+		/**
+		 * 高位在前，低位在后
+		 */
+		byte[] datas = new byte[2];
+		datas[0] = (byte)(17070/256)&0xff;
+		datas[1] = (byte) ((17070%256)&0xff);
+		byte[] b = new byte[2];
+		b[0] = (byte) (17070 >> 8 & 0xff);
+		b[1] = (byte) (17070 & 0xff);
+		System.out.println(datas[0]);
+		System.out.println(datas[1]);
+		//66  -82
+		System.out.println(b[0]);
+		System.out.println(b[1]);
+		//66  -82
+		System.out.println(b[1]);
+	}
+	/*
+	 * 将int转为低字节在前，高字节在后的byte数组
+	 *  b[0] = 11111111(0xff) & 01100001 
+	 *  b[1]=11111111(0xff) & (n >> 8)00000000 
+	 *  b[2] = 11111111(0xff) & (n >>8)00000000 
+	 *  b[3] = 11111111(0xff) & (n >> 8)00000000
+	 */
+	public byte[] IntToByteArray(int n) {
+		byte[] b = new byte[4];
+		b[0] = (byte) (n & 0xff);
+		b[1] = (byte) (n >> 8 & 0xff);
+		b[2] = (byte) (n >> 16 & 0xff);
+		b[3] = (byte) (n >> 24 & 0xff);
+		return b;
+	}
+
+	// 将低字节在前转为int，高字节在后的byte数组(与IntToByteArray1想对应)
+	public int ByteArrayToInt(byte[] bArr) {
+		if (bArr.length != 4) {
+			return -1;
+		}
+		return (int) ((((bArr[3] & 0xff) << 24) | ((bArr[2] & 0xff) << 16) | ((bArr[1] & 0xff) << 8)
+				| ((bArr[0] & 0xff) << 0)));
+	}
+
+	/*
+	 * 将int转为低字节在后，高字节在前的byte数组 
+	 * b[0] = 11111111(0xff) & 01100001 
+	 * b[1] = 11111111(0xff) & 00000000 
+	 * b[2] = 11111111(0xff) & 00000000 
+	 * b[3] = 11111111(0xff) & 00000000
+	 */
+	public byte[] IntToByteArray2(int value) {
+		byte[] src = new byte[4];
+		src[0] = (byte) ((value >> 24) & 0xFF);
+		src[1] = (byte) ((value >> 16) & 0xFF);
+		src[2] = (byte) ((value >> 8) & 0xFF);
+		src[3] = (byte) (value & 0xFF);
+		return src;
+	}
+
+	// 将高字节在前转为int，低字节在后的byte数组(与IntToByteArray2想对应)
+	public int ByteArrayToInt2(byte[] bArr) {
+		if (bArr.length != 4) {
+			return -1;
+		}
+		return (int) ((((bArr[0] & 0xff) << 24) | ((bArr[1] & 0xff) << 16) | ((bArr[2] & 0xff) << 8)
+				| ((bArr[3] & 0xff) << 0)));
+	}
+	
+	/**  
+     * 将byte数组转化成String,为了支持中文，转化时用GBK编码方式  
+     */    
+    public String ByteArraytoString(byte[] valArr,int maxLen) {    
+        String result=null;    
+        int index = 0;    
+        while(index < valArr.length && index < maxLen) {    
+            if(valArr[index] == 0) {    
+                break;    
+            }    
+            index++;    
+        }    
+        byte[] temp = new byte[index];    
+        System.arraycopy(valArr, 0, temp, 0, index);    
+        try {    
+            result= new String(temp,"GBK");    
+        } catch (UnsupportedEncodingException e) {    
+            e.printStackTrace();    
+        }    
+        return result;    
+    }    
+    /**  
+     * 将String转化为byte,为了支持中文，转化时用GBK编码方式  
+     */    
+    public byte[] StringToByteArray(String str){    
+        byte[] temp = null;    
+        try {    
+            temp = str.getBytes("GBK");    
+        } catch (UnsupportedEncodingException e) {    
+            // TODO Auto-generated catch block    
+            e.printStackTrace();    
+        }    
+        return temp;    
+    }  
+}
diff --git a/src/com/qq986945193/javasetools/utils/BCryptUtils.java b/src/com/qq986945193/javasetools/utils/BCryptUtils.java
new file mode 100644
index 0000000..e9a1589
--- /dev/null
+++ b/src/com/qq986945193/javasetools/utils/BCryptUtils.java
@@ -0,0 +1,783 @@
+// Copyright (c) 2006 Damien Miller <djm@mindrot.org>
+//
+// Permission to use, copy, modify, and distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+package com.qq986945193.javasetools.utils;
+
+import java.io.UnsupportedEncodingException;
+import java.security.SecureRandom;
+
+/**
+ * BCrypt implements OpenBSD-style Blowfish password hashing using
+ * the scheme described in "A Future-Adaptable Password Scheme" by
+ * Niels Provos and David Mazieres.
+ * <p>
+ * This password hashing system tries to thwart off-line password
+ * cracking using a computationally-intensive hashing algorithm,
+ * based on Bruce Schneier's Blowfish cipher. The work factor of
+ * the algorithm is parameterised, so it can be increased as
+ * computers get faster.
+ * <p>
+ * Usage is really simple. To hash a password for the first time,
+ * call the hashpw method with a random salt, like this:
+ * <p>
+ * <code>
+ * String pw_hash = BCrypt.hashpw(plain_password, BCrypt.gensalt()); <br />
+ * </code>
+ * <p>
+ * To check whether a plaintext password matches one that has been
+ * hashed previously, use the checkpw method:
+ * <p>
+ * <code>
+ * if (BCrypt.checkpw(candidate_password, stored_hash))<br />
+ * &nbsp;&nbsp;&nbsp;&nbsp;System.out.println("It matches");<br />
+ * else<br />
+ * &nbsp;&nbsp;&nbsp;&nbsp;System.out.println("It does not match");<br />
+ * </code>
+ * <p>
+ * The gensalt() method takes an optional parameter (log_rounds)
+ * that determines the computational complexity of the hashing:
+ * <p>
+ * <code>
+ * String strong_salt = BCrypt.gensalt(10)<br />
+ * String stronger_salt = BCrypt.gensalt(12)<br />
+ * </code>
+ * <p>
+ * The amount of work increases exponentially (2**log_rounds), so 
+ * each increment is twice as much work. The default log_rounds is
+ * 10, and the valid range is 4 to 30.
+ *
+ * @author Damien Miller
+ * @version 0.2
+ */
+/**
+ * 官方的源码类
+ * @Author ：程序员小冰
+ * @新浪微博 ：http://weibo.com/mcxiaobing
+ * @GitHub: https://github.com/QQ986945193
+ */
+public class BCryptUtils {
+	// BCrypt parameters
+	private static final int GENSALT_DEFAULT_LOG2_ROUNDS = 10;
+	private static final int BCRYPT_SALT_LEN = 16;
+
+	// Blowfish parameters
+	private static final int BLOWFISH_NUM_ROUNDS = 16;
+
+	// Initial contents of key schedule
+	private static final int P_orig[] = {
+		0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344,
+		0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89,
+		0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c,
+		0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917,
+		0x9216d5d9, 0x8979fb1b
+	};
+	private static final int S_orig[] = {
+		0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7,
+		0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99,
+		0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16,
+		0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e,
+		0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee,
+		0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013,
+		0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef,
+		0x8e79dcb0, 0x603a180e, 0x6c9e0e8b, 0xb01e8a3e,
+		0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60,
+		0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440,
+		0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce,
+		0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a,
+		0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e,
+		0xafd6ba33, 0x6c24cf5c, 0x7a325381, 0x28958677,
+		0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193,
+		0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032,
+		0xef845d5d, 0xe98575b1, 0xdc262302, 0xeb651b88,
+		0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239,
+		0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e,
+		0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0,
+		0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3,
+		0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98,
+		0xa1f1651d, 0x39af0176, 0x66ca593e, 0x82430e88,
+		0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe,
+		0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6,
+		0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d,
+		0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b,
+		0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7,
+		0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x04c006ba,
+		0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463,
+		0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f,
+		0x6dfc511f, 0x9b30952c, 0xcc814544, 0xaf5ebd09,
+		0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3,
+		0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb,
+		0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279,
+		0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8,
+		0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab,
+		0x323db5fa, 0xfd238760, 0x53317b48, 0x3e00df82,
+		0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db,
+		0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573,
+		0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0,
+		0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b,
+		0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790,
+		0xe1ddf2da, 0xa4cb7e33, 0x62fb1341, 0xcee4c6e8,
+		0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4,
+		0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0,
+		0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f, 0x8e7594b7,
+		0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c,
+		0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad,
+		0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1,
+		0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299,
+		0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9,
+		0x165fa266, 0x80957705, 0x93cc7314, 0x211a1477,
+		0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf,
+		0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49,
+		0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af,
+		0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa,
+		0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5,
+		0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41,
+		0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915,
+		0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400,
+		0x08ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915,
+		0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664,
+		0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a,
+		0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623,
+		0xad6ea6b0, 0x49a7df7d, 0x9cee60b8, 0x8fedb266,
+		0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1,
+		0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e,
+		0x3f54989a, 0x5b429d65, 0x6b8fe4d6, 0x99f73fd6,
+		0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1,
+		0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e,
+		0x09686b3f, 0x3ebaefc9, 0x3c971814, 0x6b6a70a1,
+		0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737,
+		0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8,
+		0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x0200b3ff,
+		0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd,
+		0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701,
+		0x3ae5e581, 0x37c2dadc, 0xc8b57634, 0x9af3dda7,
+		0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41,
+		0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331,
+		0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf,
+		0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af,
+		0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e,
+		0x5512721f, 0x2e6b7124, 0x501adde6, 0x9f84cd87,
+		0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c,
+		0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2,
+		0xef1c1847, 0x3215d908, 0xdd433b37, 0x24c2ba16,
+		0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd,
+		0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b,
+		0x043556f1, 0xd7a3c76b, 0x3c11183b, 0x5924a509,
+		0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e,
+		0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3,
+		0x771fe71c, 0x4e3d06fa, 0x2965dcb9, 0x99e71d0f,
+		0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a,
+		0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4,
+		0xf2f74ea7, 0x361d2b3d, 0x1939260f, 0x19c27960,
+		0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66,
+		0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28,
+		0xc332ddef, 0xbe6c5aa5, 0x65582185, 0x68ab9802,
+		0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84,
+		0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510,
+		0x13cca830, 0xeb61bd96, 0x0334fe1e, 0xaa0363cf,
+		0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14,
+		0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e,
+		0x648b1eaf, 0x19bdf0ca, 0xa02369b9, 0x655abb50,
+		0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7,
+		0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8,
+		0xf837889a, 0x97e32d77, 0x11ed935f, 0x16681281,
+		0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99,
+		0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696,
+		0xcdb30aeb, 0x532e3054, 0x8fd948e4, 0x6dbc3128,
+		0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73,
+		0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0,
+		0x45eee2b6, 0xa3aaabea, 0xdb6c4f15, 0xfacb4fd0,
+		0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105,
+		0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250,
+		0xcf62a1f2, 0x5b8d2646, 0xfc8883a0, 0xc1c7b6a3,
+		0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285,
+		0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00,
+		0x58428d2a, 0x0c55f5ea, 0x1dadf43e, 0x233f7061,
+		0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb,
+		0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e,
+		0xa6078084, 0x19f8509e, 0xe8efd855, 0x61d99735,
+		0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc,
+		0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9,
+		0xdb73dbd3, 0x105588cd, 0x675fda79, 0xe3674340,
+		0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20,
+		0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7,
+		0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934,
+		0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068,
+		0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af,
+		0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840,
+		0x4d95fc1d, 0x96b591af, 0x70f4ddd3, 0x66a02f45,
+		0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504,
+		0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a,
+		0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb,
+		0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee,
+		0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6,
+		0xaace1e7c, 0xd3375fec, 0xce78a399, 0x406b2a42,
+		0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b,
+		0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2,
+		0x3a6efa74, 0xdd5b4332, 0x6841e7f7, 0xca7820fb,
+		0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527,
+		0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b,
+		0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33,
+		0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c,
+		0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3,
+		0x95c11548, 0xe4c66d22, 0x48c1133f, 0xc70f86dc,
+		0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17,
+		0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564,
+		0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b,
+		0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115,
+		0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922,
+		0x85b2a20e, 0xe6ba0d99, 0xde720c8c, 0x2da2f728,
+		0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0,
+		0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e,
+		0x0a476341, 0x992eff74, 0x3a6f6eab, 0xf4f8fd37,
+		0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d,
+		0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804,
+		0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b,
+		0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3,
+		0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb,
+		0x37392eb3, 0xcc115979, 0x8026e297, 0xf42e312d,
+		0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c,
+		0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350,
+		0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9,
+		0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a,
+		0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe,
+		0x9dbc8057, 0xf0f7c086, 0x60787bf8, 0x6003604d,
+		0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc,
+		0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f,
+		0x77a057be, 0xbde8ae24, 0x55464299, 0xbf582e61,
+		0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2,
+		0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9,
+		0x7aeb2661, 0x8b1ddf84, 0x846a0e79, 0x915f95e2,
+		0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c,
+		0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e,
+		0xb77f19b6, 0xe0a9dc09, 0x662d09a1, 0xc4324633,
+		0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10,
+		0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169,
+		0xdcb7da83, 0x573906fe, 0xa1e2ce9b, 0x4fcd7f52,
+		0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027,
+		0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5,
+		0xf0177a28, 0xc0f586e0, 0x006058aa, 0x30dc7d62,
+		0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634,
+		0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76,
+		0x6f05e409, 0x4b7c0188, 0x39720a3d, 0x7c927c24,
+		0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc,
+		0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4,
+		0x1e50ef5e, 0xb161e6f8, 0xa28514d9, 0x6c51133c,
+		0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837,
+		0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0,
+		0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b,
+		0x5cb0679e, 0x4fa33742, 0xd3822740, 0x99bc9bbe,
+		0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b,
+		0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4,
+		0x5748ab2f, 0xbc946e79, 0xc6a376d2, 0x6549c2c8,
+		0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6,
+		0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304,
+		0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2, 0x9a86ee22,
+		0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4,
+		0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6,
+		0x2826a2f9, 0xa73a3ae1, 0x4ba99586, 0xef5562e9,
+		0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59,
+		0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593,
+		0xe990fd5a, 0x9e34d797, 0x2cf0b7d9, 0x022b8b51,
+		0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28,
+		0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c,
+		0xe029ac71, 0xe019a5e6, 0x47b0acfd, 0xed93fa9b,
+		0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28,
+		0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c,
+		0x15056dd4, 0x88f46dba, 0x03a16125, 0x0564f0bd,
+		0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a,
+		0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319,
+		0x7533d928, 0xb155fdf5, 0x03563482, 0x8aba3cbb,
+		0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f,
+		0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991,
+		0xea7a90c2, 0xfb3e7bce, 0x5121ce64, 0x774fbe32,
+		0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680,
+		0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166,
+		0xb39a460a, 0x6445c0dd, 0x586cdecf, 0x1c20c8ae,
+		0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb,
+		0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5,
+		0x72eacea8, 0xfa6484bb, 0x8d6612ae, 0xbf3c6f47,
+		0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370,
+		0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d,
+		0x4040cb08, 0x4eb4e2cc, 0x34d2466a, 0x0115af84,
+		0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048,
+		0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8,
+		0x611560b1, 0xe7933fdc, 0xbb3a792b, 0x344525bd,
+		0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9,
+		0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7,
+		0x1a908749, 0xd44fbd9a, 0xd0dadecb, 0xd50ada38,
+		0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f,
+		0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c,
+		0xbf97222c, 0x15e6fc2a, 0x0f91fc71, 0x9b941525,
+		0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1,
+		0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442,
+		0xe0ec6e0e, 0x1698db3b, 0x4c98a0be, 0x3278e964,
+		0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e,
+		0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8,
+		0xdf359f8d, 0x9b992f2e, 0xe60b6f47, 0x0fe3f11d,
+		0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f,
+		0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299,
+		0xf523f357, 0xa6327623, 0x93a83531, 0x56cccd02,
+		0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc,
+		0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614,
+		0xe6c6c7bd, 0x327a140a, 0x45e1d006, 0xc3f27b9a,
+		0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6,
+		0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b,
+		0x53113ec0, 0x1640e3d3, 0x38abbd60, 0x2547adf0,
+		0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060,
+		0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e,
+		0x1948c25c, 0x02fb8a8c, 0x01c36ae4, 0xd6ebe1f9,
+		0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f,
+		0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6
+	};
+
+	// bcrypt IV: "OrpheanBeholderScryDoubt". The C implementation calls
+	// this "ciphertext", but it is really plaintext or an IV. We keep
+	// the name to make code comparison easier.
+	static private final int bf_crypt_ciphertext[] = {
+		0x4f727068, 0x65616e42, 0x65686f6c,
+		0x64657253, 0x63727944, 0x6f756274
+	};
+
+	// Table for Base64 encoding
+	static private final char base64_code[] = {
+		'.', '/', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J',
+		'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V',
+		'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h',
+		'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't',
+		'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5',
+		'6', '7', '8', '9'
+	};
+
+	// Table for Base64 decoding
+	static private final byte index_64[] = {
+		-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+		-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+		-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+		-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+		-1, -1, -1, -1, -1, -1, 0, 1, 54, 55,
+		56, 57, 58, 59, 60, 61, 62, 63, -1, -1,
+		-1, -1, -1, -1, -1, 2, 3, 4, 5, 6,
+		7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
+		17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27,
+		-1, -1, -1, -1, -1, -1, 28, 29, 30,
+		31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
+		41, 42, 43, 44, 45, 46, 47, 48, 49, 50,
+		51, 52, 53, -1, -1, -1, -1, -1
+	};
+
+	// Expanded Blowfish key
+	private int P[];
+	private int S[];
+
+	/**
+	 * Encode a byte array using bcrypt's slightly-modified base64
+	 * encoding scheme. Note that this is *not* compatible with
+	 * the standard MIME-base64 encoding.
+	 *
+	 * @param d	the byte array to encode
+	 * @param len	the number of bytes to encode
+	 * @return	base64-encoded string
+	 * @exception IllegalArgumentException if the length is invalid
+	 */
+	private static String encode_base64(byte d[], int len)
+		throws IllegalArgumentException {
+		int off = 0;
+		StringBuffer rs = new StringBuffer();
+		int c1, c2;
+
+		if (len <= 0 || len > d.length)
+			throw new IllegalArgumentException ("Invalid len");
+
+		while (off < len) {
+			c1 = d[off++] & 0xff;
+			rs.append(base64_code[(c1 >> 2) & 0x3f]);
+			c1 = (c1 & 0x03) << 4;
+			if (off >= len) {
+				rs.append(base64_code[c1 & 0x3f]);
+				break;
+			}
+			c2 = d[off++] & 0xff;
+			c1 |= (c2 >> 4) & 0x0f;
+			rs.append(base64_code[c1 & 0x3f]);
+			c1 = (c2 & 0x0f) << 2;
+			if (off >= len) {
+				rs.append(base64_code[c1 & 0x3f]);
+				break;
+			}
+			c2 = d[off++] & 0xff;
+			c1 |= (c2 >> 6) & 0x03;
+			rs.append(base64_code[c1 & 0x3f]);
+			rs.append(base64_code[c2 & 0x3f]);
+		}
+		return rs.toString();
+	}
+
+	/**
+	 * Look up the 3 bits base64-encoded by the specified character,
+	 * range-checking againt conversion table
+	 * @param x	the base64-encoded value
+	 * @return	the decoded value of x
+	 */
+	private static byte char64(char x) {
+		if ((int)x < 0 || (int)x > index_64.length)
+			return -1;
+		return index_64[(int)x];
+	}
+
+	/**
+	 * Decode a string encoded using bcrypt's base64 scheme to a
+	 * byte array. Note that this is *not* compatible with
+	 * the standard MIME-base64 encoding.
+	 * @param s	the string to decode
+	 * @param maxolen	the maximum number of bytes to decode
+	 * @return	an array containing the decoded bytes
+	 * @throws IllegalArgumentException if maxolen is invalid
+	 */
+	private static byte[] decode_base64(String s, int maxolen)
+		throws IllegalArgumentException {
+		StringBuffer rs = new StringBuffer();
+		int off = 0, slen = s.length(), olen = 0;
+		byte ret[];
+		byte c1, c2, c3, c4, o;
+
+		if (maxolen <= 0)
+			throw new IllegalArgumentException ("Invalid maxolen");
+
+		while (off < slen - 1 && olen < maxolen) {
+			c1 = char64(s.charAt(off++));
+			c2 = char64(s.charAt(off++));
+			if (c1 == -1 || c2 == -1)
+				break;
+			o = (byte)(c1 << 2);
+			o |= (c2 & 0x30) >> 4;
+			rs.append((char)o);
+			if (++olen >= maxolen || off >= slen)
+				break;
+			c3 = char64(s.charAt(off++));
+			if (c3 == -1)
+				break;
+			o = (byte)((c2 & 0x0f) << 4);
+			o |= (c3 & 0x3c) >> 2;
+			rs.append((char)o);
+			if (++olen >= maxolen || off >= slen)
+				break;
+			c4 = char64(s.charAt(off++));
+			o = (byte)((c3 & 0x03) << 6);
+			o |= c4;
+			rs.append((char)o);
+			++olen;
+		}
+
+		ret = new byte[olen];
+		for (off = 0; off < olen; off++)
+			ret[off] = (byte)rs.charAt(off);
+		return ret;
+	}
+
+	/**
+	 * Blowfish encipher a single 64-bit block encoded as
+	 * two 32-bit halves
+	 * @param lr	an array containing the two 32-bit half blocks
+	 * @param off	the position in the array of the blocks
+	 */
+	private final void encipher(int lr[], int off) {
+		int i, n, l = lr[off], r = lr[off + 1];
+
+		l ^= P[0];
+		for (i = 0; i <= BLOWFISH_NUM_ROUNDS - 2;) {
+			// Feistel substitution on left word
+			n = S[(l >> 24) & 0xff];
+			n += S[0x100 | ((l >> 16) & 0xff)];
+			n ^= S[0x200 | ((l >> 8) & 0xff)];
+			n += S[0x300 | (l & 0xff)];
+			r ^= n ^ P[++i];
+
+			// Feistel substitution on right word
+			n = S[(r >> 24) & 0xff];
+			n += S[0x100 | ((r >> 16) & 0xff)];
+			n ^= S[0x200 | ((r >> 8) & 0xff)];
+			n += S[0x300 | (r & 0xff)];
+			l ^= n ^ P[++i];
+		}
+		lr[off] = r ^ P[BLOWFISH_NUM_ROUNDS + 1];
+		lr[off + 1] = l;
+	}
+
+	/**
+	 * Cycically extract a word of key material
+	 * @param data	the string to extract the data from
+	 * @param offp	a "pointer" (as a one-entry array) to the
+	 * current offset into data
+	 * @return	the next word of material from data
+	 */
+	private static int streamtoword(byte data[], int offp[]) {
+		int i;
+		int word = 0;
+		int off = offp[0];
+
+		for (i = 0; i < 4; i++) {
+			word = (word << 8) | (data[off] & 0xff);
+			off = (off + 1) % data.length;
+		}
+
+		offp[0] = off;
+		return word;
+	}
+
+	/**
+	 * Initialise the Blowfish key schedule
+	 */
+	private void init_key() {
+		P = (int[])P_orig.clone();
+		S = (int[])S_orig.clone();
+	}
+
+	/**
+	 * Key the Blowfish cipher
+	 * @param key	an array containing the key
+	 */
+	private void key(byte key[]) {
+		int i;
+		int koffp[] = { 0 };
+		int lr[] = { 0, 0 };
+		int plen = P.length, slen = S.length;
+
+		for (i = 0; i < plen; i++)
+			P[i] = P[i] ^ streamtoword(key, koffp);
+
+		for (i = 0; i < plen; i += 2) {
+			encipher(lr, 0);
+			P[i] = lr[0];
+			P[i + 1] = lr[1];
+		}
+
+		for (i = 0; i < slen; i += 2) {
+			encipher(lr, 0);
+			S[i] = lr[0];
+			S[i + 1] = lr[1];
+		}
+	}
+
+	/**
+	 * Perform the "enhanced key schedule" step described by
+	 * Provos and Mazieres in "A Future-Adaptable Password Scheme"
+	 * http://www.openbsd.org/papers/bcrypt-paper.ps
+	 * @param data	salt information
+	 * @param key	password information
+	 */
+	private void ekskey(byte data[], byte key[]) {
+		int i;
+		int koffp[] = { 0 }, doffp[] = { 0 };
+		int lr[] = { 0, 0 };
+		int plen = P.length, slen = S.length;
+
+		for (i = 0; i < plen; i++)
+			P[i] = P[i] ^ streamtoword(key, koffp);
+
+		for (i = 0; i < plen; i += 2) {
+			lr[0] ^= streamtoword(data, doffp);
+			lr[1] ^= streamtoword(data, doffp);
+			encipher(lr, 0);
+			P[i] = lr[0];
+			P[i + 1] = lr[1];
+		}
+
+		for (i = 0; i < slen; i += 2) {
+			lr[0] ^= streamtoword(data, doffp);
+			lr[1] ^= streamtoword(data, doffp);
+			encipher(lr, 0);
+			S[i] = lr[0];
+			S[i + 1] = lr[1];
+		}
+	}
+
+	/**
+	 * Perform the central password hashing step in the
+	 * bcrypt scheme
+	 * @param password	the password to hash
+	 * @param salt	the binary salt to hash with the password
+	 * @param log_rounds	the binary logarithm of the number
+	 * of rounds of hashing to apply
+	 * @param cdata         the plaintext to encrypt
+	 * @return	an array containing the binary hashed password
+	 */
+	public byte[] crypt_raw(byte password[], byte salt[], int log_rounds,
+	    int cdata[]) {
+		int rounds, i, j;
+		int clen = cdata.length;
+		byte ret[];
+
+		if (log_rounds < 4 || log_rounds > 30)
+			throw new IllegalArgumentException ("Bad number of rounds");
+		rounds = 1 << log_rounds;
+		if (salt.length != BCRYPT_SALT_LEN)
+			throw new IllegalArgumentException ("Bad salt length");
+
+		init_key();
+		ekskey(salt, password);
+		for (i = 0; i != rounds; i++) {
+			key(password);
+			key(salt);
+		}
+
+		for (i = 0; i < 64; i++) {
+			for (j = 0; j < (clen >> 1); j++)
+				encipher(cdata, j << 1);
+		}
+
+		ret = new byte[clen * 4];
+		for (i = 0, j = 0; i < clen; i++) {
+			ret[j++] = (byte)((cdata[i] >> 24) & 0xff);
+			ret[j++] = (byte)((cdata[i] >> 16) & 0xff);
+			ret[j++] = (byte)((cdata[i] >> 8) & 0xff);
+			ret[j++] = (byte)(cdata[i] & 0xff);
+		}
+		return ret;
+	}
+
+	/**
+	 * Hash a password using the OpenBSD bcrypt scheme
+	 * @param password	the password to hash
+	 * @param salt	the salt to hash with (perhaps generated
+	 * using BCrypt.gensalt)
+	 * @return	the hashed password
+	 */
+	public static String hashpw(String password, String salt) {
+		BCryptUtils B;
+		String real_salt;
+		byte passwordb[], saltb[], hashed[];
+		char minor = (char)0;
+		int rounds, off = 0;
+		StringBuffer rs = new StringBuffer();
+
+		if (salt.charAt(0) != '$' || salt.charAt(1) != '2')
+			throw new IllegalArgumentException ("Invalid salt version");
+		if (salt.charAt(2) == '$')
+			off = 3;
+		else {
+			minor = salt.charAt(2);
+			if (minor != 'a' || salt.charAt(3) != '$')
+				throw new IllegalArgumentException ("Invalid salt revision");
+			off = 4;
+		}
+
+		// Extract number of rounds
+		if (salt.charAt(off + 2) > '$')
+			throw new IllegalArgumentException ("Missing salt rounds");
+		rounds = Integer.parseInt(salt.substring(off, off + 2));
+
+		real_salt = salt.substring(off + 3, off + 25);
+		try {
+			passwordb = (password + (minor >= 'a' ? "\000" : "")).getBytes("UTF-8");
+		} catch (UnsupportedEncodingException uee) {
+			throw new AssertionError("UTF-8 is not supported");
+		}
+
+		saltb = decode_base64(real_salt, BCRYPT_SALT_LEN);
+
+		B = new BCryptUtils();
+		hashed = B.crypt_raw(passwordb, saltb, rounds,
+		    (int[])bf_crypt_ciphertext.clone());
+
+		rs.append("$2");
+		if (minor >= 'a')
+			rs.append(minor);
+		rs.append("$");
+		if (rounds < 10)
+			rs.append("0");
+		if (rounds > 30) {
+			throw new IllegalArgumentException(
+			    "rounds exceeds maximum (30)");
+		}
+		rs.append(Integer.toString(rounds));
+		rs.append("$");
+		rs.append(encode_base64(saltb, saltb.length));
+		rs.append(encode_base64(hashed,
+		    bf_crypt_ciphertext.length * 4 - 1));
+		return rs.toString();
+	}
+
+	/**
+	 * Generate a salt for use with the BCrypt.hashpw() method
+	 * @param log_rounds	the log2 of the number of rounds of
+	 * hashing to apply - the work factor therefore increases as
+	 * 2**log_rounds.
+	 * @param random		an instance of SecureRandom to use
+	 * @return	an encoded salt value
+	 */
+	public static String gensalt(int log_rounds, SecureRandom random) {
+		StringBuffer rs = new StringBuffer();
+		byte rnd[] = new byte[BCRYPT_SALT_LEN];
+
+		random.nextBytes(rnd);
+
+		rs.append("$2a$");
+		if (log_rounds < 10)
+			rs.append("0");
+		if (log_rounds > 30) {
+			throw new IllegalArgumentException(
+			    "log_rounds exceeds maximum (30)");
+		}
+		rs.append(Integer.toString(log_rounds));
+		rs.append("$");
+		rs.append(encode_base64(rnd, rnd.length));
+		return rs.toString();
+	}
+
+	/**
+	 * Generate a salt for use with the BCrypt.hashpw() method
+	 * @param log_rounds	the log2 of the number of rounds of
+	 * hashing to apply - the work factor therefore increases as
+	 * 2**log_rounds.
+	 * @return	an encoded salt value
+	 */
+	public static String gensalt(int log_rounds) {
+		return gensalt(log_rounds, new SecureRandom());
+	}
+
+	/**
+	 * Generate a salt for use with the BCrypt.hashpw() method,
+	 * selecting a reasonable default for the number of hashing
+	 * rounds to apply
+	 * @return	an encoded salt value
+	 */
+	public static String gensalt() {
+		return gensalt(GENSALT_DEFAULT_LOG2_ROUNDS);
+	}
+
+	/**
+	 * Check that a plaintext password matches a previously hashed
+	 * one
+	 * @param plaintext	the plaintext password to verify
+	 * @param hashed	the previously-hashed password
+	 * @return	true if the passwords match, false otherwise
+	 */
+	public static boolean checkpw(String plaintext, String hashed) {
+		byte hashed_bytes[];
+		byte try_bytes[];
+		try {
+			String try_pw = hashpw(plaintext, hashed);
+			hashed_bytes = hashed.getBytes("UTF-8");
+			try_bytes = try_pw.getBytes("UTF-8");
+		} catch (UnsupportedEncodingException uee) {
+			return false;
+		}
+		if (hashed_bytes.length != try_bytes.length)
+			return false;
+		byte ret = 0;
+		for (int i = 0; i < try_bytes.length; i++)
+			ret |= hashed_bytes[i] ^ try_bytes[i];
+		return ret == 0;
+	}
+}
diff --git a/src/com/qq986945193/javasetools/utils/BufferedImageLuminanceSource.java b/src/com/qq986945193/javasetools/utils/BufferedImageLuminanceSource.java
new file mode 100644
index 0000000..a7b6bf0
--- /dev/null
+++ b/src/com/qq986945193/javasetools/utils/BufferedImageLuminanceSource.java
@@ -0,0 +1,202 @@
+package com.qq986945193.javasetools.utils;
+
+import java.awt.Graphics2D;
+import java.awt.geom.AffineTransform;
+import java.awt.image.BufferedImage;
+import java.awt.image.WritableRaster;
+import com.google.zxing.LuminanceSource;
+
+/**
+ * 
+ * 二维码的解析需要借助BufferedImageLuminanceSource类，该类是由Google提供的，可以将该类直接拷贝到源码中使用，
+ * 当然你也可以自己写个 解析条形码的基类
+ */
+
+public final class BufferedImageLuminanceSource extends LuminanceSource {
+
+	private static final double MINUS_45_IN_RADIANS = -0.7853981633974483; // Math.toRadians(-45.0)
+
+	private final BufferedImage image;
+	private final int left;
+	private final int top;
+
+	private static final boolean EXPLICIT_LUMINANCE_CONVERSION;
+
+	static {
+		String property = System.getProperty("explicitLuminanceConversion");
+		if (property == null) {
+			property = System.getenv("EXPLICIT_LUMINANCE_CONVERSION");
+		}
+		EXPLICIT_LUMINANCE_CONVERSION = Boolean.parseBoolean(property);
+	}
+
+	public BufferedImageLuminanceSource(BufferedImage image) {
+		this(image, 0, 0, image.getWidth(), image.getHeight());
+	}
+
+	public BufferedImageLuminanceSource(BufferedImage image, int left, int top, int width, int height) {
+		super(width, height);
+
+		if (image.getType() == BufferedImage.TYPE_BYTE_GRAY) {
+			this.image = image;
+		} else {
+			int sourceWidth = image.getWidth();
+			int sourceHeight = image.getHeight();
+			if (left + width > sourceWidth || top + height > sourceHeight) {
+				throw new IllegalArgumentException("Crop rectangle does not fit within image data.");
+			}
+
+			this.image = new BufferedImage(sourceWidth, sourceHeight, BufferedImage.TYPE_BYTE_GRAY);
+
+			if (EXPLICIT_LUMINANCE_CONVERSION) {
+
+				WritableRaster raster = this.image.getRaster();
+				int[] buffer = new int[width];
+				for (int y = top; y < top + height; y++) {
+					image.getRGB(left, y, width, 1, buffer, 0, sourceWidth);
+					for (int x = 0; x < width; x++) {
+						int pixel = buffer[x];
+
+						// see comments in implicit branch
+						if ((pixel & 0xFF000000) == 0) {
+							pixel = 0xFFFFFFFF; // = white
+						}
+
+						// .229R + 0.587G + 0.114B (YUV/YIQ for PAL and NTSC)
+						buffer[x] = (306 * ((pixel >> 16) & 0xFF) + 601 * ((pixel >> 8) & 0xFF) + 117 * (pixel & 0xFF)
+								+ 0x200) >> 10;
+					}
+					raster.setPixels(left, y, width, 1, buffer);
+				}
+
+			} else {
+
+				// The color of fully-transparent pixels is irrelevant. They are
+				// often, technically, fully-transparent
+				// black (0 alpha, and then 0 RGB). They are often used, of
+				// course as the "white" area in a
+				// barcode image. Force any such pixel to be white:
+				if (image.getAlphaRaster() != null) {
+					int[] buffer = new int[width];
+					for (int y = top; y < top + height; y++) {
+						image.getRGB(left, y, width, 1, buffer, 0, sourceWidth);
+						boolean rowChanged = false;
+						for (int x = 0; x < width; x++) {
+							if ((buffer[x] & 0xFF000000) == 0) {
+								buffer[x] = 0xFFFFFFFF; // = white
+								rowChanged = true;
+							}
+						}
+						if (rowChanged) {
+							image.setRGB(left, y, width, 1, buffer, 0, sourceWidth);
+						}
+					}
+				}
+
+				// Create a grayscale copy, no need to calculate the luminance
+				// manually
+				this.image.getGraphics().drawImage(image, 0, 0, null);
+
+			}
+		}
+		this.left = left;
+		this.top = top;
+	}
+
+	@Override
+	public byte[] getRow(int y, byte[] row) {
+		if (y < 0 || y >= getHeight()) {
+			throw new IllegalArgumentException("Requested row is outside the image: " + y);
+		}
+		int width = getWidth();
+		if (row == null || row.length < width) {
+			row = new byte[width];
+		}
+		// The underlying raster of image consists of bytes with the luminance
+		// values
+		image.getRaster().getDataElements(left, top + y, width, 1, row);
+		return row;
+	}
+
+	@Override
+	public byte[] getMatrix() {
+		int width = getWidth();
+		int height = getHeight();
+		int area = width * height;
+		byte[] matrix = new byte[area];
+		// The underlying raster of image consists of area bytes with the
+		// luminance values
+		image.getRaster().getDataElements(left, top, width, height, matrix);
+		return matrix;
+	}
+
+	@Override
+	public boolean isCropSupported() {
+		return true;
+	}
+
+	@Override
+	public LuminanceSource crop(int left, int top, int width, int height) {
+		return new BufferedImageLuminanceSource(image, this.left + left, this.top + top, width, height);
+	}
+
+	/**
+	 * This is always true, since the image is a gray-scale image.
+	 *
+	 * @return true
+	 */
+	@Override
+	public boolean isRotateSupported() {
+		return true;
+	}
+
+	@Override
+	public LuminanceSource rotateCounterClockwise() {
+		int sourceWidth = image.getWidth();
+		int sourceHeight = image.getHeight();
+
+		// Rotate 90 degrees counterclockwise.
+		AffineTransform transform = new AffineTransform(0.0, -1.0, 1.0, 0.0, 0.0, sourceWidth);
+
+		// Note width/height are flipped since we are rotating 90 degrees.
+		BufferedImage rotatedImage = new BufferedImage(sourceHeight, sourceWidth, BufferedImage.TYPE_BYTE_GRAY);
+
+		// Draw the original image into rotated, via transformation
+		Graphics2D g = rotatedImage.createGraphics();
+		g.drawImage(image, transform, null);
+		g.dispose();
+
+		// Maintain the cropped region, but rotate it too.
+		int width = getWidth();
+		return new BufferedImageLuminanceSource(rotatedImage, top, sourceWidth - (left + width), getHeight(), width);
+	}
+
+	@Override
+	public LuminanceSource rotateCounterClockwise45() {
+		int width = getWidth();
+		int height = getHeight();
+
+		int oldCenterX = left + width / 2;
+		int oldCenterY = top + height / 2;
+
+		// Rotate 45 degrees counterclockwise.
+		AffineTransform transform = AffineTransform.getRotateInstance(MINUS_45_IN_RADIANS, oldCenterX, oldCenterY);
+
+		int sourceDimension = Math.max(image.getWidth(), image.getHeight());
+		BufferedImage rotatedImage = new BufferedImage(sourceDimension, sourceDimension, BufferedImage.TYPE_BYTE_GRAY);
+
+		// Draw the original image into rotated, via transformation
+		Graphics2D g = rotatedImage.createGraphics();
+		g.drawImage(image, transform, null);
+		g.dispose();
+
+		int halfDimension = Math.max(width, height) / 2;
+		int newLeft = Math.max(0, oldCenterX - halfDimension);
+		int newTop = Math.max(0, oldCenterY - halfDimension);
+		int newRight = Math.min(sourceDimension - 1, oldCenterX + halfDimension);
+		int newBottom = Math.min(sourceDimension - 1, oldCenterY + halfDimension);
+
+		return new BufferedImageLuminanceSource(rotatedImage, newLeft, newTop, newRight - newLeft, newBottom - newTop);
+	}
+
+}
diff --git a/src/com/qq986945193/javasetools/utils/GetUUIDRandomUtils.java b/src/com/qq986945193/javasetools/utils/GetUUIDRandomUtils.java
index 0692c28..e42cb45 100644
--- a/src/com/qq986945193/javasetools/utils/GetUUIDRandomUtils.java
+++ b/src/com/qq986945193/javasetools/utils/GetUUIDRandomUtils.java
@@ -1,5 +1,7 @@
 package com.qq986945193.javasetools.utils;
 
+import java.text.SimpleDateFormat;
+import java.util.Date;
 import java.util.UUID;
 
 /**
@@ -21,4 +23,21 @@ public class GetUUIDRandomUtils {
 	public static String getUUIDRandomNum() {
 		return UUID.randomUUID().toString().replace("-", "").toUpperCase();
 	}
+
+	/**
+	 * 生成随机数唯一码：UUID 20位 根据时间生成
+	 */
+	public static String getRandomUUID() {
+		SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmss");// 设置日期格式
+		String str = "";
+		for (int i = 0; i < 6; i++) {
+			str += String.valueOf((int) (Math.random() * 9));
+		}
+		// new Date()为获取当前系统时间
+		return df.format(new Date()) + str;
+	}
+	/*
+	 * @Test public void test(){ System.out.println(getUUIDRandomNum());
+	 * System.out.println(getRandomUUID()); }
+	 */
 }
diff --git a/src/com/qq986945193/javasetools/utils/MD5Utils.java b/src/com/qq986945193/javasetools/utils/MD5Utils.java
new file mode 100644
index 0000000..a2b65f4
--- /dev/null
+++ b/src/com/qq986945193/javasetools/utils/MD5Utils.java
@@ -0,0 +1,13 @@
+package com.qq986945193.javasetools.utils;
+
+import java.util.Date;
+
+public class MD5Utils {
+
+	public static void main(String[] args) {
+		Date date = new Date();
+		System.out.println(DateUtils.getDate(new Date())+" "+DateUtils.getTime(new Date()));
+		System.out.println(DateUtils.getCurrentStrDateBySpecifiedFormatType("yyyy-MM-dd hh:mm:ss"));
+	}
+
+}
diff --git a/src/com/qq986945193/javasetools/utils/MatrixToImageWriter.java b/src/com/qq986945193/javasetools/utils/MatrixToImageWriter.java
new file mode 100644
index 0000000..f6867d1
--- /dev/null
+++ b/src/com/qq986945193/javasetools/utils/MatrixToImageWriter.java
@@ -0,0 +1,56 @@
+package com.qq986945193.javasetools.utils;
+
+import com.google.zxing.common.BitMatrix;
+import javax.imageio.ImageIO;
+import java.io.File;
+import java.io.OutputStream;
+import java.io.IOException;
+import java.awt.image.BufferedImage;
+
+/**
+ * 生成二维码的工具类
+ */
+public final class MatrixToImageWriter {
+	private static final int BLACK = 0xFF000000;
+	private static final int WHITE = 0xFFFFFFFF;
+
+	private MatrixToImageWriter() {
+	}
+
+	/**
+	 * 将二维码图片生成到缓冲区
+	 */
+	public static BufferedImage toBufferedImage(BitMatrix matrix) {
+		int width = matrix.getWidth();
+		int height = matrix.getHeight();
+		BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
+		for (int x = 0; x < width; x++) {
+			for (int y = 0; y < height; y++) {
+				image.setRGB(x, y, matrix.get(x, y) ? BLACK : WHITE);
+			}
+		}
+		return image;
+	}
+
+	/**
+	 * 将二维码图片生成文件
+	 * 
+	 * @param matrix
+	 * @param format
+	 * @param file
+	 * @throws IOException
+	 */
+	public static void writeToFile(BitMatrix matrix, String format, File file) throws IOException {
+		BufferedImage image = toBufferedImage(matrix);
+		if (!ImageIO.write(image, format, file)) {
+			throw new IOException("Could not write an image of format " + format + " to " + file);
+		}
+	}
+
+	public static void writeToStream(BitMatrix matrix, String format, OutputStream stream) throws IOException {
+		BufferedImage image = toBufferedImage(matrix);
+		if (!ImageIO.write(image, format, stream)) {
+			throw new IOException("Could not write an image of format " + format);
+		}
+	}
+}