ajax用jquery方法验证用户名方法（回钦波）

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Ajax jQuery Servlet HTML IDEA

1.
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.ServletException;
import java.io.IOException;
import java.io.PrintWriter;
import java.net.URLDecoder;

/**
* Created by IntelliJ IDEA.
* User: Administrator
* Date: 2010-1-29
* Time: 3:16:32
* To change this template use File | Settings | File Templates.
*/
public class AddBlog extends HttpServlet {
    public void dopost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {
        doGet(request,response);
    }
    public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException,IOException{

            response.setContentType("text/html;charset=utf-8");
            request.setCharacterEncoding("UTF-8");
            String oldname=request.getParameter("name");
            String name= URLDecoder.decode(oldname,"UTF-8");
            PrintWriter out=response.getWriter();
            if(name==null || name.equals("")){
                out.println("不能为空");
            }else{
                try{
                if(name.equals("huiqinbo")){
                    out.println("恭喜"+name+"成功登录");
                }else{
                    out.print("你的用户名"+name+"不正确");
                 }

             }catch (Exception e) {
                e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.
             }
            }
   }
}

2.

function jqueryTest(){
    $.get("AddBlog?name="+encodeURI(encodeURI($("#name").val())),null,function(data){
        $("#result").html(data);
    })
    alert("成功");
}

3.

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
        "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
    <title></title>
    <script type="text/javascript" src="jslib/jquery.js"></script>
    <script type="text/javascript" src="jslib/jqueryTest.js"></script>
</head>
<body>
     <input type="text" id="name"/>
       <input type="submit" value="提交" onclick="jqueryTest()"/>
       <div id="result"></div>
</body>
</html>

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