Spring MVC简介附入门案例

<?xml version="1.0" encoding="UTF-8"?>

<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/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>***.example</groupId>
  <artifactId>mvc_demo1</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

  <name>mvc_demo1 Maven Webapp</name>
  <!-- FIXME change it to the project's website -->
  <url>https://www.example.***</url>

  <dependencies>
    <!-- Spring核心模块 -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>5.2.12.RELEASE</version>
    </dependency>
    <!-- springWeb模块 -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>5.2.12.RELEASE</version>
    </dependency>
    <!-- SpringMVC模块 -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>5.2.12.RELEASE</version>
    </dependency>
    <!-- Servlet -->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>servlet-api</artifactId>
      <version>2.5</version>
      <scope>provided</scope>
    </dependency>
    <!-- JSP -->
    <dependency>
      <groupId>javax.servlet.jsp</groupId>
      <artifactId>jsp-api</artifactId>
      <version>2.0</version>
      <scope>provided</scope>
    </dependency>
  </dependencies>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.***piler.source>11</maven.***piler.source>
    <maven.***piler.target>11</maven.***piler.target>
  </properties>

  <build>
    <plugins>
      <!-- tomcat插件 -->
      <plugin>
        <groupId>org.apache.tomcat.maven</groupId>
        <artifactId>tomcat7-maven-plugin</artifactId>
        <version>2.1</version>
        <configuration>
          <port>8080</port>
          <path>/</path>
          <uriEncoding>UTF-8</uriEncoding>
          <server>tomcat7</server>
          <systemProperties>
            <java.util.logging.SimpleFormatter.format>%1$tH:%1$tM:%1$tS%2 $s%n%4$s: %5$s%6$s%n
            </java.util.logging.SimpleFormatter.format>
          </systemProperties>
        </configuration>
      </plugin>
    </plugins>
  </build>

</project>

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.***/dtd/web-app_2_3.dtd" >

<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">

  <display-name>Archetype Created Web Application</display-name>
  <!-- SpringMVC前端控制器，本质是一个Servlet,接受所有请求，在容器启动时就会加载 -->
  <servlet>
    <servlet-name>dispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:springmvc.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>dispatcherServlet</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
  <!-- 默认进入obj2Param.jsp页面 -->
  <wel***e-file-list>
    <wel***e-file>obj2Param.jsp</wel***e-file>
  </wel***e-file-list>

</web-app>

<?xml version="1.0" encoding="UTF-8" ?>
<beans
    xmlns="http://www.springframework.org/schema/beans"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd">

    <!-- 扫描包 -->
    <context:***ponent-scan base-package="***.example"/>
    <!-- 开启SpringMVC注解的支持 -->
    <mvc:annotation-driven/>
    
</beans>

package ***.example.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class MyController1 {
    // 该方法的访问路径是/c1/hello1

    @RequestMapping("/c/hello1")
    public void helloMCV(){
        System.out.println("hello springmvc");
    }
}