jQuery ajax MD5实现用户注册即时验证功能

实际项目中比较常用的(JQuery+AJAX+MD5)，属于即时验证，亮点是验证用户是否存在的那一项，具体内容如下

具体示例

registe.jsp

<%@ page pageEncoding="UTF-8"%> 
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> 
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %> 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
 注册新会员 
  
  
  
  
  
 
 
 
 
 

AccountServlet.java

package com.validator.test; 
 
import java.io.IOException; 
import java.io.PrintWriter; 
 
import javax.servlet.ServletException; 
import javax.servlet.http.HttpServlet; 
import javax.servlet.http.HttpServletRequest; 
import javax.servlet.http.HttpServletResponse; 
 
public class AccountServlet extends HttpServlet { 
 
 
 public void doGet(HttpServletRequest request, HttpServletResponse response) 
 throws ServletException, IOException { 
 this.doPost(request, response); 
 
 } 
 public void doPost(HttpServletRequest request, HttpServletResponse response) 
 throws ServletException, IOException { 
 String loginname=request.getParameter("loginname"); 
 PrintWriter out = response.getWriter(); 
 if(loginname.equals("abc123")){ 
 out.println("1"); 
 }else{ 
 out.println("0"); 
 } 
 out.flush(); 
 
 } 
 
} 

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