public static String Md5(String msg){
try {
MessageDigest md = MessageDigest.getInstance("md5");
byte md5[] = md.digest(msg.getBytes());
BASE64Encoder encoder = new BASE64Encoder();
return encoder.encode(md5);//解释md5码成明文字符串
} catch (Exception e) {
throw new RuntimeException(e);
}
}
去查下api啊。上边有使用例子
哦