搭建简单的spring mvc

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