一个简单Eclipse开发的Ajax系统

代码赏析

jsp:
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

 
  
 
 
 
  
      
       
      
      
      

姓名: 

         
       

 

Sevelet:

 package tt;

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 TestA extends HttpServlet {

 
 protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
  
  //设置接收的信息的字符集
  request.setCharacterEncoding("UTF-8");
  
  String name=request.getParameter("name");
  
  //设置输出的信息的格式及字符集
  response.setContentType("text/xml; charset=UTF-8");
  response.setHeader("Cache-Control","no-cache");
  
  //创建输出流
  PrintWriter out=response.getWriter();
   
  out.println("");
  if(name.equals("jack_booth")){
   out.println(""+"对不起，此网名已注册!"+"");
  
  }else{
   out.println(""+"此网名可以注册!"+"");
  }
  out.println("");
  out.close();
  
 }
 
}

 

web.xml:

文件:	TestAjax.rar
大小:	4KB
下载:	下载

  
 
 xmlns=""
 xmlns:xsi=""
 xsi:schemaLocation="
 ">

 
  login
  tt.TestA
 
 
 
  login
  /login