软件三班20240605

烟雨666_java2024-06-06 9:49

文章目录

1.创建工程和模块
2.添加 web支持
3.创建前端代码
4.添加servlet 依赖
1. 代码
6.案例2

1.创建工程和模块

2.添加 web支持

方法1
方法2

3.创建前端代码

4.添加servlet 依赖

5. 代码

html 复制代码

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
<a href="/test/demo">启动服务</a>
<!--  超链接  =     一个 url  -->
</body>
</html>

xml 复制代码

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
         version="4.0">
    <servlet>
        <servlet-name>aa</servlet-name>
        <servlet-class>com.yanyu.Demo</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>aa</servlet-name>
        <url-pattern>/test/demo</url-pattern>
    </servlet-mapping>



</web-app>

java 复制代码

package com.yanyu;

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 Demo extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//        设置  编码  格式和  响应的内容
        response.setCharacterEncoding("utf-8");
        response.setContentType("text/html");
//      获取  响应对象
        PrintWriter out = response.getWriter();//  ctrl   alt   v
        System.out.println("ergrthuj1233");
        out.print("前端测试");




    }
}

软件三班20240605

文章目录

1.创建工程和模块

2.添加 web支持

3.创建前端代码

4.添加servlet 依赖

5. 代码

6.案例2