Intetllij IDEA 创建JAVA WEB 项目

1.创建项目

File->Project->JAVA Eenterprise

勾选Web Application，其它框架按自己需求勾选

然后Next，选择工程路径， 点击Finish。

2.配置Tomcat

配置项目访问根路径

3.配置部署路径

4.创建一个测试接口

1.在src目录下创建ServletTest

@WebServlet(name = "ServletTest")public class ServletTest extends HttpServlet {    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {    }    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {        PrintWriter writer = response.getWriter();        writer.write("Hello");        writer.close();    }}

2.配置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-mapping>        <servlet-name>ServletTest</servlet-name>        <url-pattern>/ServletTest</url-pattern>    </servlet-mapping>    <servlet>        <servlet-name>ServletTest</servlet-name>        <servlet-class>com.gamepp.ServletTest</servlet-class>    </servlet></web-app>

3.启动tomcat
访问 http://localhost:8080/Gamepp/ServletTest
成功返回 “Hello”