import java.security.*;
public class MessageCheck {?
?public static void main(String[] args)
{????
String info1 = "admin";??
//String info1 = "Hello World!";??
String info2 = "Hello World!";????
try?{???// 生成 MessageDigest 實例，確定計算方法???//MessageDigest md1 = MessageDigest.getInstance("SHA-1");??
?MessageDigest md1 = MessageDigest.getInstance("MD5"); ???// 添加要計算的摘要信息???
md1.update(info1.getBytes());? // transform parameter to byte[] ???// 完成哈希計算,返回計算得到的摘要(對于MD5是16位,SHA是20位)???
byte[] digA = md1.digest();