Md5加密方法

package com.atguigu.surveypark.util;

import java.security.MessageDigest;

/**
* 数据
*/
public class DataUtil {
/**
* 使用md5算法进行加密
*/
public static String md5(String src){
try {
StringBuffer buffer = new StringBuffer();
char[] chars = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
byte[] bytes = src.getBytes();
MessageDigest md = MessageDigest.getInstance("MD5");
byte[] targ = md.digest(bytes);
for(byte b: targ){
buffer.append(chars[(b >> 4) & 0x0F]);
buffer.append(chars[b & 0x0F]);
}
return buffer.toString();
} catch (Exception e) {
e.printStackTrace();
}
return null ;
}
}

  

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