JavaWeb学习总结8.13

《Servlet学习》

已经学习了前三种接口。
也写了一个便于巩固的小网页

index.jsp

<%--
  Created by IntelliJ IDEA.
  User: ZLB
  Date: 2019/8/13
  Time: 19:05
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>


  
  
  



这是一个DW制作的前端网页显示~

 
 

  
    
  

web.xml

    
        a
        Servlet
    

    
        a
        /Servlet
    

    
    baidu
    www.baidu.com
    

    
        qqemil
        [email protected]
    

Servlet.java

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

public class Servlet extends HttpServlet {

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        System.out.println("doGer~");

//        PrintWriter outt = resp.getWriter();
//        outt.print("
当前Web应用的所有初始化参数为：baidu  qqemil");
//        outt.print("baidu  参数值为 "+super.getServletContext().getInitParameter("baidu"));
//        outt.print("qqemil 参数值为 "+super.getServletContext().getInitParameter("qqemil"));
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        System.out.println("doPost~");
    }

    @Override
    public void init() throws ServletException {
        System.out.println("出生了~");
    }

    @Override
    public void destroy() {
        System.out.println("死掉了~");
    }
}