wemall app商城源码android开发MD5加密工具类

         wemall-mobile是基于WeMall的android app商城，只需要在原商城目录下上传接口文件即可完成服务端的配置，客户端可定制修改。本文分享android开发MD5加密工具类主要代码，供技术员参考学习。

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1. package com.gzcivil.utils;
   
2. 
   
3. import java.io.UnsupportedEncodingException;
   
4. import java.security.MessageDigest;
   
5. import java.security.NoSuchAlgorithmException;
   
6. 
   
7. public class MD5Tool {
   
8. 
   
9.     public static String md5(String string) {
   
10.         byte[] hash;
    
11.         try {
    
12.             hash = MessageDigest.getInstance("MD5").digest(string.getBytes("UTF-8"));
    
13.         } catch (NoSuchAlgorithmException e) {
    
14.             throw new RuntimeException("Huh, MD5 should be supported?", e);
    
15.         } catch (UnsupportedEncodingException e) {
    
16.             throw new RuntimeException("Huh, UTF-8 should be supported?", e);
    
17.         }
    
18. 
    
19.         StringBuilder hex = new StringBuilder(hash.length * 2);
    
20.         for (byte b : hash) {
    
21.             if ((b & 0xFF) < 0x10)
    
22.                 hex.append("0");
    
23.             hex.append(Integer.toHexString(b & 0xFF));
    
24.         }
    
25.         return hex.toString();
    
26.     }
    
27. 
    
28.     public static String encrypt(String data) {
    
29.         if (data == null)
    
30.             data = "";
    
31.         byte[] btRet = null;
    
32.         try {
    
33.             btRet = _encrypt(data.getBytes("utf-8"));
    
34.         } catch (UnsupportedEncodingException e) {
    
35.             e.printStackTrace();
    
36.         }
    
37.         if (btRet == null)
    
38.             return null;
    
39.         return BinStr.byte2str(btRet).toLowerCase();
    
40.     }
    
41. 
    
42.     /**
    
43.      * 加密MD5
    
44.      *
    
45.      * @param content
    
46.      * 需要加密的内容
    
47.      * @param password
    
48.      * 加密密码
    
49.      * @return
    
50.      */
    
51.     private static byte[] _encrypt(byte[] btData) {
    
52.         try {
    
53.             // 获得MD5摘要算法的 MessageDigest 对象
    
54.             MessageDigest mdInst = MessageDigest.getInstance("MD5");
    
55.             // 使用指定的字节更新摘要
    
56.             mdInst.update(btData);
    
57.             // 获得密文
    
58.             return mdInst.digest();
    
59.         } catch (Exception e) {
    
60.             e.printStackTrace();
    
61.             return null;
    
62.         }
    
63.     }
    
64.     
    
65.      
    
66. }

原文详情地址：http://git.oschina.net/einsqing/wemall-mobile

wemall-mobile商城详情地址：http://www.koahub.com/home/product/56

wemall官网地址：http://www.wemallshop.com

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