基于maven配置最简SpringMVC

一、我的目录结构

二、maven的相关spring依赖

<dependencies> <!--添加springMVC的支持--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>4.3.18.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.3.18.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>4.3.18.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-expression</artifactId> <version>4.3.18.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>4.3.18.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.3.18.RELEASE</version> </dependency> <dependency> <groupId>commons-logging</groupId> <artifactId>commons-logging</artifactId> <version>1.1.2</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <scope>test</scope> </dependency> </dependencies>

二、配置Spring的DispatcherServlet

1、什么是DispatcherServlet？

DispatcherServlet实质也是一个HttpServlet，DispatcherSevlet负责将请求分发，所有的请求都有经过它来 统一分发到我们自己定义的Controller的方法中。

2、配置方法

在WEB-INF目录下的web.xml文件中配置 <!--配置spring相关--> <servlet> <servlet-name>SpringMVC</servlet-name> <!--配置DispatcherServlet--> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!--初始化自定义springmvc配置文件地址，我当前是放在resource文件目录下--> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath*:spring-mvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>SpringMVC</servlet-name> <!-- 指的是所有URL都会映射到这个servlet --> <url-pattern>/</url-pattern> </servlet-mapping> 配置spring-mvc.xml文件，主要是要进行组件扫描，并使用注解，所以 <context:component-scan /> 和 <mvc:annotation-driven /> 两个标签很重要，具体可以自行百度。到这一步基本上就配置完成，我们去Controller中写一个方法测试一下 <?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" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd"> <!--添加注解扫描--> <context:component-scan base-package="com.springmvc.controller"/> <context:component-scan base-package="com.springmvc.service"/> <!--注解驱动，以使得访问路径与方法的匹配可以通过注解配置--> <mvc:annotation-driven /> <mvc:resources mapping="/static/**" location="/static/"/> <!-- 配置视图解析器 --> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/pages/"/> <property name="suffix" value=".jsp"/> </bean> <!--加载上传的bean--> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="maxUploadSize" value="104857600"/> <property name="defaultEncoding" value="UTF-8" /> </bean> </beans>

3、写测试的Controller

package com.springmvc.controller; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; /** * @author LCX * @date 2020/7/1 */ @Controller public class InputProductController { @RequestMapping("/test") public void test1(){ System.out.println("Hello Word!"); } } 最后运行结果 我们来看看控制台，发现控制台以及打印出来了。所以 SpringMVC配置成功 项目demo下载点击这里