0117 springmvc

springmvc-demo/.gitignore

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+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

springmvc-demo/.idea/inspectionProfiles/Project_Default.xml

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+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+  </profile>
+</component>

springmvc-demo/.idea/workspace.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ArtifactsWorkspaceSettings">
+    <artifacts-to-build>
+      <artifact name="springmvc-demo:war" />
+      <artifact name="springmvc-demo:war exploded" />
+    </artifacts-to-build>
+  </component>
+  <component name="AutoImportSettings">
+    <option name="autoReloadType" value="SELECTIVE" />
+  </component>
+  <component name="ChangeListManager">
+    <list default="true" id="d55c211f-cca4-4230-b149-ae8c1dab3c43" name="Changes" comment="">
+      <change afterPath="$PROJECT_DIR$/../.idea/VIPJAVA.iml" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/../gn_oa_vip27/.idea/google-java-format.xml" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/.gitignore" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/.idea/inspectionProfiles/Project_Default.xml" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/pom.xml" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/src/main/java/com/sf/MyServletContainerInitializer.java" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/src/main/java/com/sf/MyWebAppInitializer.java" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/src/main/java/com/sf/SpringMvcConfig.java" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/src/main/java/com/sf/controller/AuthorController.java" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/src/main/java/com/sf/controller/BookController.java" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/src/main/java/com/sf/servlet/UserServlet.java" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/src/main/resources/spring-mvc.xml" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/src/main/webapp/WEB-INF/web.xml" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/src/main/webapp/hello.jsp" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/src/main/webapp/index.jsp" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/../02_JavaWeb/day06_mybatis/src/main/java/com/lc/mapper/UserMapper.java" beforeDir="false" afterPath="$PROJECT_DIR$/../02_JavaWeb/day06_mybatis/src/main/java/com/lc/mapper/UserMapper.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/../02_JavaWeb/day06_mybatis/src/main/resources/com/lc/mapper/UserMapper.xml" beforeDir="false" afterPath="$PROJECT_DIR$/../02_JavaWeb/day06_mybatis/src/main/resources/com/lc/mapper/UserMapper.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/../gn_oa_vip27/.idea/jarRepositories.xml" beforeDir="false" afterPath="$PROJECT_DIR$/../gn_oa_vip27/.idea/jarRepositories.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/../gn_oa_vip27/.idea/misc.xml" beforeDir="false" afterPath="$PROJECT_DIR$/../gn_oa_vip27/.idea/misc.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/../gn_oa_vip27/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/../gn_oa_vip27/.idea/workspace.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/../gn_oa_vip27/src/main/java/com/sf/utils/JdbcUtil.java" beforeDir="false" afterPath="$PROJECT_DIR$/../gn_oa_vip27/src/main/java/com/sf/utils/JdbcUtil.java" afterDir="false" />
+    </list>
+    <option name="SHOW_DIALOG" value="false" />
+    <option name="HIGHLIGHT_CONFLICTS" value="true" />
+    <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
+    <option name="LAST_RESOLUTION" value="IGNORE" />
+  </component>
+  <component name="FileTemplateManagerImpl">
+    <option name="RECENT_TEMPLATES">
+      <list>
+        <option value="Jsp File" />
+        <option value="Spring Xml File" />
+        <option value="Class" />
+      </list>
+    </option>
+  </component>
+  <component name="Git.Settings">
+    <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$/.." />
+  </component>
+  <component name="KubernetesApiProvider"><![CDATA[{
+  "isMigrated": true
+}]]></component>
+  <component name="LogFilters">
+    <option name="FILTER_ERRORS" value="false" />
+    <option name="FILTER_WARNINGS" value="false" />
+    <option name="FILTER_INFO" value="true" />
+    <option name="FILTER_DEBUG" value="true" />
+    <option name="CUSTOM_FILTER" />
+  </component>
+  <component name="ProjectColorInfo"><![CDATA[{
+  "associatedIndex": 4
+}]]></component>
+  <component name="ProjectId" id="2b4QX4DZlPMWbRpeUw2AqyNi4lV" />
+  <component name="ProjectLevelVcsManager">
+    <ConfirmationsSetting value="2" id="Add" />
+  </component>
+  <component name="ProjectViewState">
+    <option name="showLibraryContents" value="true" />
+  </component>
+  <component name="PropertiesComponent"><![CDATA[{
+  "keyToString": {
+    "Maven. [org.apache.maven.plugins:maven-archetype-plugin:RELEASE:generate].executor": "Run",
+    "RunOnceActivity.OpenProjectViewOnStart": "true",
+    "RunOnceActivity.ShowReadmeOnStart": "true",
+    "Tomcat Server.Tomcat 10.0.21.executor": "Run",
+    "Tomcat Server.Tomcat 8.5.93.executor": "Run",
+    "git-widget-placeholder": "master",
+    "kotlin-language-version-configured": "true",
+    "last_opened_file_path": "/Users/Qing/IdeaProjects/SiFu/VIPJAVA/springmvc-demo/src/main/webapp/WEB-INF",
+    "node.js.detected.package.eslint": "true",
+    "node.js.detected.package.tslint": "true",
+    "node.js.selected.package.eslint": "(autodetect)",
+    "node.js.selected.package.tslint": "(autodetect)",
+    "nodejs_package_manager_path": "npm",
+    "settings.editor.selected.configurable": "MavenSettings",
+    "vue.rearranger.settings.migration": "true"
+  }
+}]]></component>
+  <component name="RecentsManager">
+    <key name="CopyFile.RECENT_KEYS">
+      <recent name="$PROJECT_DIR$/src/main/webapp/WEB-INF" />
+    </key>
+  </component>
+  <component name="RunManager">
+    <configuration name="Tomcat 10.0.21" type="#com.intellij.j2ee.web.tomcat.TomcatRunConfigurationFactory" factoryName="Local" APPLICATION_SERVER_NAME="Tomcat 10.0.21" ALTERNATIVE_JRE_ENABLED="false" nameIsGenerated="true">
+      <option name="OPEN_IN_BROWSER_URL" value="http://localhost:8080/springmvc_demo/hello" />
+      <option name="UPDATING_POLICY" value="restart-server" />
+      <deployment>
+        <artifact name="springmvc-demo:war">
+          <settings>
+            <option name="CONTEXT_PATH" value="/springmvc_demo_war" />
+          </settings>
+        </artifact>
+        <artifact name="springmvc-demo:war exploded">
+          <settings>
+            <option name="CONTEXT_PATH" value="/springmvc_demo" />
+          </settings>
+        </artifact>
+      </deployment>
+      <server-settings>
+        <option name="BASE_DIRECTORY_NAME" value="35ace8a8-cdaa-4cb1-aa16-948e91024d18" />
+      </server-settings>
+      <predefined_log_file enabled="true" id="Tomcat" />
+      <predefined_log_file enabled="true" id="Tomcat Catalina" />
+      <predefined_log_file id="Tomcat Manager" />
+      <predefined_log_file id="Tomcat Host Manager" />
+      <predefined_log_file id="Tomcat Localhost Access" />
+      <RunnerSettings RunnerId="Debug">
+        <option name="DEBUG_PORT" value="56558" />
+      </RunnerSettings>
+      <ConfigurationWrapper VM_VAR="JAVA_OPTS" RunnerId="Cover">
+        <option name="USE_ENV_VARIABLES" value="true" />
+        <STARTUP>
+          <option name="USE_DEFAULT" value="true" />
+          <option name="SCRIPT" value="" />
+          <option name="VM_PARAMETERS" value="" />
+          <option name="PROGRAM_PARAMETERS" value="" />
+        </STARTUP>
+        <SHUTDOWN>
+          <option name="USE_DEFAULT" value="true" />
+          <option name="SCRIPT" value="" />
+          <option name="VM_PARAMETERS" value="" />
+          <option name="PROGRAM_PARAMETERS" value="" />
+        </SHUTDOWN>
+      </ConfigurationWrapper>
+      <ConfigurationWrapper VM_VAR="JAVA_OPTS" RunnerId="Debug">
+        <option name="USE_ENV_VARIABLES" value="true" />
+        <STARTUP>
+          <option name="USE_DEFAULT" value="true" />
+          <option name="SCRIPT" value="" />
+          <option name="VM_PARAMETERS" value="" />
+          <option name="PROGRAM_PARAMETERS" value="" />
+        </STARTUP>
+        <SHUTDOWN>
+          <option name="USE_DEFAULT" value="true" />
+          <option name="SCRIPT" value="" />
+          <option name="VM_PARAMETERS" value="" />
+          <option name="PROGRAM_PARAMETERS" value="" />
+        </SHUTDOWN>
+      </ConfigurationWrapper>
+      <ConfigurationWrapper VM_VAR="JAVA_OPTS" RunnerId="Profile">
+        <option name="USE_ENV_VARIABLES" value="true" />
+        <STARTUP>
+          <option name="USE_DEFAULT" value="true" />
+          <option name="SCRIPT" value="" />
+          <option name="VM_PARAMETERS" value="" />
+          <option name="PROGRAM_PARAMETERS" value="" />
+        </STARTUP>
+        <SHUTDOWN>
+          <option name="USE_DEFAULT" value="true" />
+          <option name="SCRIPT" value="" />
+          <option name="VM_PARAMETERS" value="" />
+          <option name="PROGRAM_PARAMETERS" value="" />
+        </SHUTDOWN>
+      </ConfigurationWrapper>
+      <ConfigurationWrapper VM_VAR="JAVA_OPTS" RunnerId="Run">
+        <option name="USE_ENV_VARIABLES" value="true" />
+        <STARTUP>
+          <option name="USE_DEFAULT" value="true" />
+          <option name="SCRIPT" value="" />
+          <option name="VM_PARAMETERS" value="" />
+          <option name="PROGRAM_PARAMETERS" value="" />
+        </STARTUP>
+        <SHUTDOWN>
+          <option name="USE_DEFAULT" value="true" />
+          <option name="SCRIPT" value="" />
+          <option name="VM_PARAMETERS" value="" />
+          <option name="PROGRAM_PARAMETERS" value="" />
+        </SHUTDOWN>
+      </ConfigurationWrapper>
+      <method v="2">
+        <option name="Make" enabled="true" />
+        <option name="BuildArtifacts" enabled="true">
+          <artifact name="springmvc-demo:war exploded" />
+          <artifact name="springmvc-demo:war" />
+        </option>
+      </method>
+    </configuration>
+  </component>
+  <component name="SpellCheckerSettings" RuntimeDictionaries="0" Folders="0" CustomDictionaries="0" DefaultDictionary="application-level" UseSingleDictionary="true" transferred="true" />
+  <component name="TaskManager">
+    <task active="true" id="Default" summary="Default task">
+      <changelist id="d55c211f-cca4-4230-b149-ae8c1dab3c43" name="Changes" comment="" />
+      <created>1705471907664</created>
+      <option name="number" value="Default" />
+      <option name="presentableId" value="Default" />
+      <updated>1705471907664</updated>
+      <workItem from="1705471908780" duration="9815000" />
+    </task>
+    <servers />
+  </component>
+  <component name="TypeScriptGeneratedFilesManager">
+    <option name="version" value="3" />
+  </component>
+</project>

springmvc-demo/pom.xml

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+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.sf</groupId>
+    <artifactId>springmvc-demo</artifactId>
+    <packaging>war</packaging>
+    <version>1.0-SNAPSHOT</version>
+    <name>springmvc-demo Maven Webapp</name>
+    <url>http://maven.apache.org</url>
+    <dependencies>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter</artifactId>
+            <version>5.10.1</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-webmvc</artifactId>
+            <version>6.1.2</version>
+        </dependency>
+        <dependency>
+            <groupId>jakarta.servlet</groupId>
+            <artifactId>jakarta.servlet-api</artifactId>
+            <version>6.1.0-M1</version>
+        </dependency>
+    </dependencies>
+    <build>
+        <finalName>springmvc-demo</finalName>
+    </build>
+</project>

springmvc-demo/src/main/java/com/sf/MyServletContainerInitializer.java

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+package com.sf;
+
+import org.springframework.web.context.WebApplicationContext;
+import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
+import org.springframework.web.servlet.support.AbstractDispatcherServletInitializer;
+
+/**
+ * 除了直接实现接口的方式 implements WebApplicationInitializer
+ * 还可以使用 继承父类的方式 extends AbstractDispatcherServletInitializer
+ */
+//public class MyServletContainerInitializer extends AbstractDispatcherServletInitializer {
+//    @Override
+//    protected WebApplicationContext createServletApplicationContext() {
+//        AnnotationConfigWebApplicationContext context =
+//                new AnnotationConfigWebApplicationContext();
+//        context.register(SpringMvcConfig.class);
+//        return context;
+//    }
+//
+//    @Override
+//    protected String[] getServletMappings() {
+//        return new String[]{"/"};
+//    }
+//
+//    @Override
+//    protected WebApplicationContext createRootApplicationContext() {
+//        return null;
+//    }
+//}

springmvc-demo/src/main/java/com/sf/MyWebAppInitializer.java

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+package com.sf;
+
+import jakarta.servlet.ServletContext;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.ServletRegistration;
+import org.springframework.web.WebApplicationInitializer;
+import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
+import org.springframework.web.context.support.GenericWebApplicationContext;
+import org.springframework.web.servlet.DispatcherServlet;
+
+/**
+ * 如果要代替web.xml的作用 需要实现WebApplicationInitializer 初始化接口
+ * 使用了一个新的spring容器类AnnotationConfigWebApplicationContext
+ *
+ */
+//public class MyWebAppInitializer implements WebApplicationInitializer {
+//
+//    @Override
+//    public void onStartup(ServletContext servletContext) throws ServletException {
+//        AnnotationConfigWebApplicationContext context =
+//                new AnnotationConfigWebApplicationContext();
+//        context.register(SpringMvcConfig.class); //注册自己的配置文件
+//        context.setServletContext(servletContext);
+//        //把 ServletContext 注入到spring容器中
+//
+//        ServletRegistration.Dynamic appServlet = servletContext
+//                .addServlet("dispatcherServlet", new DispatcherServlet(context));
+//        // 加载  dispatcher Servlet。
+//        appServlet.setLoadOnStartup(1);
+//        appServlet.addMapping("/");
+//    }
+//}

springmvc-demo/src/main/java/com/sf/SpringMvcConfig.java

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+package com.sf;
+
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.EnableWebMvc;
+
+/**
+ * @EnableWebMvc 代表打开对springmvc的使用
+ */
+@EnableWebMvc
+@Configuration
+@ComponentScan
+public class SpringMvcConfig {
+
+}

springmvc-demo/src/main/java/com/sf/controller/AuthorController.java

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+package com.sf.controller;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * @RestController 是Controller中的一种
+ * 在不需要返回页面 只需要返回数据的时候  可以被使用
+ */
+@RestController
+public class AuthorController {
+
+    @GetMapping("/author")
+    public String getAll(){
+        return "liucixin ligang luyao";
+//        return "刘慈欣 李刚 路遥";
+    }
+}

springmvc-demo/src/main/java/com/sf/controller/BookController.java

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+package com.sf.controller;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.servlet.ModelAndView;
+
+/**
+ * 当我们使用springmvc时  是通过 **Controller 来统一对请求和响应处理的
+ * 是对应 三层架构中的  表示层  对应MVC中 Control
+ *   要做的事儿  首先是接收某一个请求  而请求直接可以映射到方法上  把方法作为请求的入口
+ *     View - hello.jsp
+ *     Model - 是需要方法返回的结果 定义了一个类 叫 ModelAndView
+ *   不直接接收 http的请求和响应了  请求的参数通过方法参数处理  请求的响应通过方法的返回结果处理
+ *
+ *   浏览器 localhost:8080/springmvc-demo/hello
+ *    Servlet  -> BookController  -> hello()
+ *
+ *   方法，别名函数， y = f(x)   响应 = f(请求)   y = f(x+1)
+ *   Controller -> Service -> Dao/Mapper
+ */
+@Controller
+public class BookController {
+
+    // HttpServletRequest request, HttpServletResponse response
+//    @RequestMapping("/hello")
+    @GetMapping("/hello")
+//    @PostMapping
+    public ModelAndView hello() {
+        ModelAndView mv = new ModelAndView();
+        mv.addObject("name", "Spring MVC Annotation");
+        mv.setViewName("/hello.jsp");
+        return mv;
+    }
+}

springmvc-demo/src/main/java/com/sf/servlet/UserServlet.java

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+package com.sf.servlet;
+
+import jakarta.servlet.ServletException;
+import jakarta.servlet.annotation.WebServlet;
+import jakarta.servlet.http.HttpServlet;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+
+import java.io.IOException;
+
+//@WebServlet(name = "userServlet", value = "/user")
+public class UserServlet extends HttpServlet {
+
+    @Override
+    protected void doGet(HttpServletRequest request, HttpServletResponse response)
+            throws ServletException, IOException {
+        doPost(request, response);
+    }
+
+    @Override
+    protected void doPost(HttpServletRequest request, HttpServletResponse response)
+            throws ServletException, IOException {
+        request.setAttribute("name", "Spring MVC from UserServlet");
+        request.getRequestDispatcher("/hello.jsp").forward(request, response);
+    }
+}

springmvc-demo/src/main/resources/spring-mvc.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xmlns:context="http://www.springframework.org/schema/context"
+       xsi:schemaLocation="http://www.springframework.org/schema/beans
+        https://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">
+    <!-- 扫描所有的后端控制器，创建对象到容器中 -->
+    <context:component-scan base-package="com.sf.controller" />
+</beans>

springmvc-demo/src/main/webapp/WEB-INF/web.xml

@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--<web-app></web-app>-->
+<web-app xmlns="https://jakarta.ee/xml/ns/jakartaee"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="https://jakarta.ee/xml/ns/jakartaee
+                      https://jakarta.ee/xml/ns/jakartaee/web-app_5_0.xsd"
+         version="5.0">
+
+<!--<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>dispatcherServlet</servlet-name>
+        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
+        <!-- 创建前端控制器的时候读取springmvc配置文件启动ioc容器 -->
+        <init-param>
+            <param-name>contextConfigLocation</param-name>
+            <param-value>classpath:spring-mvc.xml</param-value>
+            <!-- <param-value>classpath:springmvc-annotation.xml</param-value> -->
+        </init-param>
+        <!-- Tomcat启动就创建此对象 -->
+        <load-on-startup>1</load-on-startup>
+    </servlet>
+
+    <!--
+    配置拦截路径url，所有请求都会被前端控制器拦截处理
+    所匹配的请求可以是/login，或.html  或.js  或.css方式的请求路径
+    但是，/不能匹配.jsp请求路径的请求
+    -->
+    <servlet-mapping>
+        <servlet-name>dispatcherServlet</servlet-name>
+        <url-pattern>/</url-pattern>
+    </servlet-mapping>
+</web-app>

springmvc-demo/src/main/webapp/hello.jsp

@@ -0,0 +1,23 @@
+<%--
+  Created by IntelliJ IDEA.
+  User: ingq
+  Date: 2024/1/17
+  Time: 14:16
+  To change this template use File | Settings | File Templates.
+--%>
+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<%--JSP和Servlet版本导致el功能默认关闭，加入标签手动开启el功能。--%>
+<%@ page isELIgnored="false"%>
+<%
+    String contextPath = request.getContextPath();
+    String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + contextPath + "/";
+%>
+<html>
+<head>
+    <base href="<%=basePath%>">
+    <title>Title</title>
+</head>
+<body>
+<h2>你好，${name}</h2>
+</body>
+</html>

springmvc-demo/src/main/webapp/index.jsp

@@ -0,0 +1,5 @@
+<html>
+<body>
+<h2>Hello World!</h2>
+</body>
+</html>