1,新建文件ajax.jsp,在里面写入：
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!--以上代码从index。jsp复制过来 --><!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>Title</title> <script src="js/jquery-3.1.1.min.js"></script></head><body><div>1111111111</div><script> $(function () { var url = '<%=basePath%>'; //basepath从index。jsp复制过来 $.get(url+"/servlet/MyServlet",function (data,status) { $("div").text(data);//text会把原来的文本替换为MyServlet里的内容 }) })</script></body></html>
2,
访问http://localhost:8080/jquery/ajax.jsp，页面会显示hello，而不是ajax.jsp里面的内容