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package com.test.j2se;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
public class MD5 {
/**Êý¾Ý¼ÓÃÜ
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
try {
MessageDigest code = MessageDigest.getInstance("MD5");
String str = "ADFSE";
System.out.println("before md5:"+str);
code.update(str.getBytes());
byte[] bs = code.digest();
StringBuffer sb = new StringBuffer();
for(int i =0;i<bs.length;i++) {
// System.out.println("bs["+i+"]="+bs[i]);
int v = bs[i]& 0xff;
if(v <16) {
sb.append(0);
}
sb.append(Integer.toHexString(v).toUpperCase());
}
System.out.println("length ="+sb.length());
System.out.println("after md5 :"+sb.toString());
System.out.println("5tohexStrin="+Integer.toHexString(17));
} catch (NoSuchAlgorithmException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}

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