MD5使用示例代码 java版

代码简单 直接上

/**
 * MD5工具类
 */
package com.utils;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

import javax.xml.bind.DatatypeConverter;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 *
 */
public class MD5Util {
    
    private static Logger logger = LoggerFactory.getLogger(MD5Util.class);
    
    private static final String encryModel = "MD5";
    
    /**
    * <p>Title: </p>
    * <p>Description: </p>
    */ 
    private MD5Util() {
        super();
    }
        //可选MD5  origin：待加密数据
    public static String md5(String origin) {
        return encrypt(origin, "md5");
    }
    //可选sha-1 origin：待加密数据
    public static String sha(String origin) {  
        return encrypt(origin, "sha-1");  
    }  
    
    /**
     * @param origin
     * 加密内容
     * @param algorithmName
     * md5或者sha-1
     */
    public static String encrypt(String origin,String algorithmName) {
        String localAlgorithmName ;
        if (algorithmName == null || "".equals(algorithmName.trim())) {  
            localAlgorithmName = "md5";  
        }else{
            localAlgorithmName = algorithmName;
        }
        try {
            MessageDigest md5 = MessageDigest.getInstance(localAlgorithmName);
            md5.update(origin.getBytes());
            return DatatypeConverter.printHexBinary(md5.digest()).toLowerCase(); 
        } catch (NoSuchAlgorithmException e) {
             logger.error("MD5加密失败"+e);
        }  
        return null;
    }

}