先引入des的就是文件
前台加密
strEnc(accNum,"1","2","3")
后台解密：
Des desObj = new Des(); String accNum = desObj.strDec(accNum1,"1","2","3"); log.info(" wxOpenId ="+wxOpenId);
DES加密
原文：http://www.cnblogs.com/qxqbk/p/7117782.html
