SpringMVC-初识SpringMVC
2022/3/30 23:24:23
本文主要是介绍SpringMVC-初识SpringMVC,对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!
SpringMVC的开发步骤
- 导入SpringMVC的相关坐标
- 配置Servlet
- 编写Controller
- 将 Controller 使用注解 @Controller 配置到容器当中
- 配置组件扫描到spring-mvc.xml
- 执行测试
SpringMVC的快速入门
创建一个名为study_Spring03的简单web项目
导入SpringMVC的相关坐标
pom.xml
<?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>org.example</groupId> <artifactId>study_Spring03</artifactId> <version>1.0-SNAPSHOT</version> <packaging>war</packaging> <name>study_Spring03 Maven Webapp</name> <!-- FIXME change it to the project's website --> <url>http://www.example.com</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <maven.compiler.source>1.7</maven.compiler.source> <maven.compiler.target>1.7</maven.compiler.target> </properties> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>5.3.17</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>5.3.17</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>5.3.17</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>5.3.17</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.13.2</version> <scope>test</scope> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> </dependency> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>javax.servlet.jsp-api</artifactId> <version>2.3.3</version> </dependency> </dependencies> <build> <finalName>study_Spring03</finalName> <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) --> <plugins> <plugin> <artifactId>maven-clean-plugin</artifactId> <version>3.1.0</version> </plugin> <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging --> <plugin> <artifactId>maven-resources-plugin</artifactId> <version>3.0.2</version> </plugin> <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>3.8.0</version> </plugin> <plugin> <artifactId>maven-surefire-plugin</artifactId> <version>2.22.1</version> </plugin> <plugin> <artifactId>maven-war-plugin</artifactId> <version>3.2.2</version> </plugin> <plugin> <artifactId>maven-install-plugin</artifactId> <version>2.5.2</version> </plugin> <plugin> <artifactId>maven-deploy-plugin</artifactId> <version>2.8.2</version> </plugin> </plugins> </pluginManagement> </build> </project>
配置(前端控制器、组件扫描)
web.xml
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd" > <web-app> <display-name>Archetype Created Web Application</display-name> <!--全局配置--> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:appContext.xml</param-value> </context-param> <!--配置前端控制器--> <servlet> <servlet-name>DispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!--扩展配置方式--> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-mvc.xml</param-value> </init-param> <!--前端控制器初始化早于服务器启动--> <load-on-startup>1</load-on-startup> </servlet> <!--映射--> <servlet-mapping> <servlet-name>DispatcherServlet</servlet-name> <!--匹配的可以是/xxx或.html、.js、.css。但不能是.jsp--> <url-pattern>/</url-pattern> </servlet-mapping> </web-app>
appContext.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" 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"> </beans>
spring-mvc.xml
<?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 http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd "> <!--组件扫描--> <context:component-scan base-package="com.sjj.controller" /> </beans>
编写Controller
跳转的页面success.jsp需要自己准备
package com.sjj.controller; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; // 注释web类 @Controller public class UserController { // 请求映射方法 @RequestMapping("/success") public String print_test(){ System.out.println("Controller print_test running……"); // 跳转试图 return "success.jsp"; } }
测试
配置tomcat,将项目以工件的形式添加到服务器启动时部署,并且将应用程序上下文设置为 /
启动项目 访问 localhost:8080/success
最后看一下项目结构
非常的简单
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