Java动态web--jsp页面调用servlet(doPost)

环境：eclipse Mars

1、新建Dynamic web

2、新建jsp页面，编码：

<%@page import="com.kuaiya.query.process.QueryProcess"%>
<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="UTF-8"%>








查询语句:

3、新建servlet

package com.kuaiya.query.process;

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 QueryProcess
 */
@WebServlet("/QueryProcess")
public class QueryProcess extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public QueryProcess() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		doPost(request, response);
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub		
		String query = request.getParameter("sql");
		String btn = request.getParameter("Query");
		if(btn!=null && btn.equals("Query")){
			Query.lstSubmit.add(query);
			try {
				Query.process();
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}

}

注意：在jsp需要添加

否则运行的界面按钮点击无法触发servlet中的doPost函数。