JQuery--$.ajax(get)方法

?后台服务器代码：
package com.wepull.servlet;import java.io.IOException;import java.io.PrintWriter;import java.net.URLDecoder;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;public class ValidateServlet extends HttpServlet {public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {doProcess(request,  response);}public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {doProcess(request,  response);}private void doProcess(HttpServletRequest request,HttpServletResponse response) {try {request.setCharacterEncoding("utf-8");response.setCharacterEncoding("utf-8");String name = request.getParameter("name");System.out.println("ajax传来的name："+name);    name = URLDecoder.decode(name,"utf-8");PrintWriter  pw =response.getWriter();if("w".equals(name)){pw.println("<root>"+name+"：已经被占用"+"</root>");}else{pw.println("<root>"+name+"：可以注册"+"</root>");}} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}
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