第一个servlet小程序
com.fry.servlet.HelloServlet
package com.fry.servlet; 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 HelloServlet extends HttpServlet { @Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
System.out.println("接收到get请求！！！");
PrintWriter out=resp.getWriter();
resp.setContentType("text/html;charset=utf-8");
out.println("<strong>服务器已经接收到get请求！！！！！！</strong><br>");
} @Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
System.out.println("接收到post请求！！！");
}
}
index.jsp
<%--
Created by IntelliJ IDEA.
User: user
Date: 2017/10/31
Time: 13:46
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>$Title$</title>
</head>
<body>
欢迎访问我的第一个JSP。<br>
<a href="hi">get请求</a>
</body>
</html>
WEB-INF/web.xml
<?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_3_1.xsd"
version="3.1">
<servlet>
<servlet-name>helloServlet</servlet-name>
<servlet-class>com.fry.servlet.HelloServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>helloServlet</servlet-name>
<url-pattern>/hi</url-pattern>
</servlet-mapping>
</web-app>
目录结构
