ajax案例---以GET和POST方式异步提交数据给后台

前台页面代码

 

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>


  
    

	

  
  
  
	 

	 

	
	

	

  

后台处理代码

 

 

package com.ajax.test;

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 AjaxServlet extends HttpServlet {
	
	private static final long serialVersionUID = 1L;
	
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		response.setContentType("text/html");

		String num1 = request.getParameter("num1");
		String num2 = request.getParameter("num2");
		
		int num3 = Integer.valueOf(num1) + Integer.valueOf(num2);
		
		PrintWriter out = response.getWriter();
		
		System.out.println("AjaxServlet.doGet()");
		
		out.println(num3);

	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		
		System.out.println("AjaxServlet.doPost()");
		
		this.doGet(request, response);
	}
}

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