StringappKey = "key"; StringappSecret = "secret"; //init appKey appSecret//NOTE init is slow ,It will be cost 5sDotEnginedotEngine = newDotEngine(appKey, appSecret); //set connect timeout default 10sdotEngine.setConnectTimeout(2000); //set read timeout default 10sdotEngine.setReadTimeout(2000); //enable logdotEngine.enableLog(); Stringtoken = null; try{//set room user expireTimetoken = dotEngine.createToken("room", "user", 24 * 36000)} catch (GenerateTokenExceptione){//create token failuree.printStackTrace()} //get result token ; if failure return nullSystem.out.println(token);