Jsp和Servlet复习
Posted SmallCuteMonkey
tags:
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package com.hou;
import javax.jws.WebService;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
//@WebService(serviceName = "hello") 是WebServlet 注解
//生命周期
//1. 进行初始化 2。执行 3.进行销毁
@WebServlet(urlPatterns = "/login",name = "",loadOnStartup = 1)
public class Servlet extends HttpServlet {
// 生命周期 init() service() destory()
// LoadOnstartup 加载时机
@Override
public void init() throws ServletException {
System.out.println("方法正在被执行");
}
@Override
protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
super.service(req, resp);
// 设置请求的乱码
req.setCharacterEncoding("utf-8");
// 设置响应的乱码
resp.setContentType("text/html,charset=utf-8");
// 响应的输出流的编码
resp.setCharacterEncoding("utf-8");
String username = req.getParameter("username");
String password = req.getParameter("password");
System.out.println("username=" + username+"password"+password);
// 把输出的内容响应到浏览器上面
PrintWriter pw=resp.getWriter();
pw.println("username=="+username+"password=="+password);
pw.flush();
pw.close();
}
@Override
public void destroy(){
super.destroy();
System.out.println("方法被销毁");
}
}
Login.jsp:
<%--
Created by IntelliJ IDEA.
User: CourageAndLove
Date: 2021/7/7
Time: 10:21
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>登录页面</title>
</head>
<body>
<form action="login" method="post">
用户名： <input type="text" name="username"><br>
密码： <input type="password" name="password" id=""><br>
<input type="submit" value="提交">
</form>
</body>
</html>
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