搭建简单的spring mvc

╰+哭是因爲堅強的太久メ 2021-11-09 04:48 316阅读 0赞

### 搭建简单的spring mvc ###

*  maven依赖
 *  Spring MVC 配置
 *  Web配置
 *  controller类测试

# maven依赖 #

<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.sky</groupId>
    	<artifactId>spring-mvc-test</artifactId>
    	<packaging>war</packaging>
    	<version>0.0.1-SNAPSHOT</version>
    	<properties>
    		<maven.compiler.source>1.8</maven.compiler.source>
    		<maven.compiler.target>1.8</maven.compiler.target>
    		<spring.version>4.3.24.RELEASE</spring.version>
    		<jstl.version>1.2</jstl.version>
    		<servlet.version>3.1.0</servlet.version>
    	</properties>
    	<dependencies>
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-webmvc</artifactId>
    			<version>${spring.version}</version>
    		</dependency>
    		<dependency>
    			<groupId>javax.servlet</groupId>
    			<artifactId>jstl</artifactId>
    			<version>${jstl.version}</version>
    		</dependency>
    		<dependency>
    			<groupId>javax.servlet</groupId>
    			<artifactId>javax.servlet-api</artifactId>
    			<version>${servlet.version}</version>
    		</dependency>
    	</dependencies>
    	<build>
    		<finalName>spring-mvc-test</finalName>
    		<plugins>
    			<plugin>
    				<groupId>org.apache.maven.plugins</groupId>
    				<artifactId>maven-war-plugin</artifactId>
    				<version>2.3</version>
    				<configuration>
    					<failOnMissingWebXml>false</failOnMissingWebXml>
    				</configuration>
    			</plugin>
    		</plugins>
    	</build>
    </project>

# Spring MVC 配置 #

启动spring MVC默认配置`@EnableWebMvc`

@Configuration
    @EnableWebMvc
    @ComponentScan({ "com.sky.springmvctest"})
    public class SpringMvcConfig { 
    	@Bean
    	public InternalResourceViewResolver viewResolver() { 
    		InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
    		viewResolver.setPrefix("/WEB-INF/classes/views/");
    		viewResolver.setSuffix(".jsp");
    		viewResolver.setViewClass(JstlView.class);
    		return viewResolver;
    	}
    }

# Web配置 #

public class WebInitializer implements WebApplicationInitializer { 
    	@Override
    	public void onStartup(ServletContext servletContext) throws ServletException { 
    		//WebApplicationInitializer 是spring提供用来配置Servlet3.0+配置的接口，从而实现了代替web.xml的位置
    		AnnotationConfigWebApplicationContext context = new AnnotationConfigWebApplicationContext();
    		context.register(SpringMvcConfig.class);
    		// 新增WebApplicationContext，注册配置类
    		context.setServletContext(servletContext);
    		// 注册Spring MVC的DispatcherServlet
    		Dynamic servlet = servletContext.addServlet("dispatcher", new DispatcherServlet(context));
    		servlet.addMapping("/");
    		servlet.setLoadOnStartup(1);
    	}
    }

# controller类测试 #

@RequestMapping("/demo")
    @Controller
    public class IndexController { 
    	@RequestMapping(value = "/index", method = RequestMethod.GET)
    	String index() { 
    		return "demo/index";
    	}
    }

[http://localhost:8080/spring-mvc-test/demo/index][http_localhost_8080_spring-mvc-test_demo_index]  
![在这里插入图片描述][20190804231249525.png]  
![在这里插入图片描述][20190804231328209.png]  
![在这里插入图片描述][20190804231347934.png]

[http_localhost_8080_spring-mvc-test_demo_index]: http://localhost:8080/spring-mvc-test/demo/index
[20190804231249525.png]: /images/20211109/780d9724c13740c68b3c383ec1fcee59.png
[20190804231328209.png]: /images/20211109/8bd46eebbc9d48d0bce96a3368889863.png
[20190804231347934.png]: /images/20211109/238d0ab1d5ce4668bb9de1e890a7cd7f.png