package com.joe.shopping;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
public class Test {
public static void main(String[] args) {
encryptByMD5("111111");
}
public static String encryptByMD5(String plainText) {
StringBuffer buf = new StringBuffer("");
try {
MessageDigest md = MessageDigest.getInstance("MD5");
md.update(plainText.getBytes());
byte b[] = md.digest();
int i;
for (int offset = 0; offset < b.length; offset++) {
i = b[offset];
if (i < 0)
i += 256;
if (i < 16)
buf.append("0");
buf.append(Integer.toHexString(i));
}
System.out.println("result: " + buf.toString());
System.out.println("result: " + buf.toString().substring(8, 24));
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
}
return buf.toString().substring(8, 24);
}
}