开发环境:jdk1.7,eclipse
框架:springmvc,mybatis
工具:maven
以下代码复制即可实现MD5加密
创建一个mave项目,加web。不懂得可以搜索一下就有了。
注册用户的JSP页面代码如下。
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<%@ page language= "java" contentType= "text/html; charset=utf-8" pageEncoding= "utf-8" %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd" > <html> <head> <meta http-equiv= "Content-Type" content= "text/html; charset=ISO-8859-1" > <script type= "text/javascript" src= "js/jQuery-2.2.0.min.js" ></script> <script type= "text/javascript" src= "md5/jquery.md5.js" ></script> <title>Insert title here</title> </head> <body> <form action= "insertUser" method= "post" id= "myForm" > <table> <tr> <td>用户名:</td> <td> <input type= "text" id= "userName" name= "user_name" > <input type= "hidden" id= "pwd" name= "user_psw" > <div id= "userNameInfo" ></div> </td> </tr> <tr> <td>密码:</td> <td><input type= "text" id= "password" name= "password" onblur= "mdjia()" ></td> </tr> <tr> <td><input type= "button" value= "生成页面hash值" ></td> <td><input type= "submit" value= "添加用户" ></td> </tr> </table> </form> </body> <script type= "text/javascript" > function mdjia(){ var password=$( "#password" ).val(); var pwd=$.md5(password); alert(pwd); $( "#pwd" ).val(pwd); } </script> </html> |
需要你自己取建一个UserDto的类,我用的是UserDto的属性来传值的。
还要引入jQuery MD5,搜一下,我不知道怎么把这个文件传到这上面让你们下载。
JSP登陆页面的代码,
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<%@ page language= "java" contentType= "text/html; charset=utf-8" pageEncoding= "utf-8" %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd" > <html> <head> <meta http-equiv= "Content-Type" content= "text/html; charset=ISO-8859-1" > <script type= "text/javascript" src= "js/jQuery-2.2.0.min.js" ></script> <script type= "text/javascript" src= "md5/jquery.md5.js" ></script> <title>MD5加密</title> </head> <body> <form action= "authUser" method= "post" id= "myForm" > <table> <tr> <td>用户名:</td> <td> <input type= "text" id= "userName" name= "user_name" > <input type= "hidden" id= "pwd" name= "user_psw" > <div id= "userNameInfo" ></div> </td> </tr> <tr> <td>密码:</td> <td><input type= "text" id= "password" name= "password" onblur= "mdjia()" ></td> </tr> <tr> <td><input type= "button" value= "生成页面hash值" ></td> <td><input type= "submit" value= "用户登录" ></td> </tr> </table> </form> </body> <script type= "text/javascript" > function mdjia(){ var password=$( "#password" ).val(); var pwd=$.md5(password); alert(pwd); $( "#pwd" ).val(pwd); } </script> </html> |
接着写后台代码
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package com.test.controller; import javax.annotation.Resource; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.servlet.ModelAndView; import com.test.dao.UserDao; import com.test.model.UserDto; /** * * @author 半路出家 * */ @Controller public class UserLogin { @Resource UserDao userDao; /* * 添加用户 */ @RequestMapping("/insertUser") public ModelAndView insertUser(UserDto userDto){ //进行加密,页面传过来的不是明文,是一个哈希值,对哈希再加密 String s=userDto.getUser_psw(); String smi=convertMD5(s); userDto.setUser_psw(smi); userDao.insertUser(userDto); return new ModelAndView("NewFile.jsp"); } /* * 验证用户名 */ @RequestMapping("/authUser") public ModelAndView authUser(UserDto userDto){ int i=0; //对用户登录传过来的哈希密码先进行加密 String s=userDto.getUser_psw(); String smi=convertMD5(s); //加密后,与数据库存储的密码进行比对 userDto.setUser_psw(smi); try { i=userDao.login(userDto); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } if(i==1){ System.out.println("用户登录成功"); }else{ System.out.println("用户登录失败"); } return new ModelAndView("NewFile.jsp"); } /** * 加密解密算法 执行一次加密,两次解密 */ public static String convertMD5(String inStr){ char [] a = inStr.toCharArray(); for ( int i = 0 ; i < a.length; i++){ a[i] = ( char ) (a[i] ^ 't' ); } String s = new String(a); return s; } } |
这样就做了一个简单的MD5加密了。其他缺省的代码都很简单,就不都写出来了,看懂逻辑就会做了。
附上数据库中保存的密码是这样的。
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:http://blog.csdn.net/nihaoa50/article/details/61415945