jsp调用servlet的方法:首先在JS里面写一个调用servlet的事件;然后利用“”标签的“onload”调用这个事件,来实现jsp页面调用servlett即可。
本篇文章使用方法:先在JS里面写一个调用servlet的事件(可以利用ajax),然后利用
标签的onload调用这个事件。来进行jsp页面调用servlet的目的。
推荐课程:Java教程。
代码如下:
jsp文件代码如下:
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> <script type="text/javascript" src="http://www.daimajiayuan.com/download/jquery/jquery-1.10.2.min.js"></script> <script type="text/javascript" src="http://cdn.bootcss.com/bootstrap-select/2.0.0-beta1/js/bootstrap-select.js"></script> <link rel="stylesheet" type="text/css" href="http://cdn.bootcss.com/bootstrap-select/2.0.0-beta1/css/bootstrap-select.css"> <!-- 3.0 --> <link href="http://netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" rel="stylesheet"> <script src="http://netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script> <!-- 2.3.2 <link href="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/css/bootstrap-combined.min.css" rel="stylesheet"> <script src="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/js/bootstrap.js"></script> --> <script type="text/javascript"> function a(){ $.ajax({ url:"LoaddataServlet",//servlet文件的名称 type:"GET", success:function(e){ alert("servlet调用成功!"); } }); } </script> </head> <body onload="a()"> </body> </html>
servlet文件代码如下:
package com.servlet; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; /** * Servlet implementation class LoaddataServlet */ @WebServlet(urlPatterns = "/LoaddataServlet",loadOnStartup = 1) public class LoaddataServlet extends HttpServlet { private static final long serialVersionUID = 1L; /** * @see HttpServlet#HttpServlet() */ public LoaddataServlet() { super(); // TODO Auto-generated constructor stub } /** * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) */ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub response.getWriter().append("Served at: ").append(request.getContextPath()); } /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub doGet(request, response); } }
结果图:
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