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);
$( "#pwd" ).val(pwd);
}
</script>
</html>
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需要你自己取建一个UserDto的类,我用的是UserDto的属性来传值的。
还要引入jQuery MD5,搜一下,我不知道怎么把这个文件传到这上面让你们下载。
JSP登陆页面的代码,
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<%@ page language= "java" contentType= "text/html; charset=utf-8"
pageEncoding= "utf-8" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd" >
<html>
<head>
<meta http-equiv= "Content-Type" content= "text/html; charset=ISO-8859-1" >
<script type= "text/javascript" src= "js/jQuery-2.2.0.min.js" ></script>
<script type= "text/javascript" src= "md5/jquery.md5.js" ></script>
<title>MD5加密</title>
</head>
<body>
<form action= "authUser" method= "post" id= "myForm" >
<table>
<tr>
<td>用户名:</td>
<td>
<input type= "text" id= "userName" name= "user_name" >
<input type= "hidden" id= "pwd" name= "user_psw" >
<div id= "userNameInfo" ></div>
</td>
</tr>
<tr>
<td>密码:</td>
<td><input type= "text" id= "password" name= "password" onblur= "mdjia()" ></td>
</tr>
<tr>
<td><input type= "button" value= "生成页面hash值" ></td>
<td><input type= "submit" value= "用户登录" ></td>
</tr>
</table>
</form>
</body>
<script type= "text/javascript" >
function mdjia(){
var password=$( "#password" ).val();
var pwd=$.md5(password);
alert(pwd);
$( "#pwd" ).val(pwd);
}
</script>
</html>
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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;
}
}
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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