Spring MVC(全注解)

项目构建流程

一、创建maven web项目，进行基础的配置

在pom.xml文件中配置全局参数

<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>com.jk</groupId>
	<artifactId>Spring-MVC-03</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>war</packaging>
	<build>
		<plugins>
			<!-- 配置项目的打包方式为war，不需要web.xml文件 -->
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-war-plugin</artifactId>
				<version>2.2</version>
				<configuration>
					<failOnMissingWebXml>false</failOnMissingWebXml>
				</configuration>
			</plugin>
			<!-- 配置jdk和编译的版本为1.8 -->
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>3.1</version>
				<configuration>
					<source>1.8</source>
					<target>1.8</target>
				</configuration>
			</plugin>
		</plugins>
	</build>
	<!-- 添加spring mvc依赖 -->
	<dependencies>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
			<version>4.3.9.RELEASE</version>
		</dependency>
	</dependencies>
</project>

二、创建配置类对象

通过此配置对象取代spring的核心配置文件,例如spring-configs.xml

package com.ck.common.config;

import org.springframework.context.annotation.ComponentScan;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ViewResolverRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

@ComponentScan("com.jk")
@EnableWebMvc
public class AppServletConfig extends WebMvcConfigurerAdapter {

	@Override
	public void configureViewResolvers(ViewResolverRegistry registry) {
		registry.jsp("/WEB-INF/mages/", ".jsp");
	}
}

三、创建启动类对象

定义启动配置类,在tomcat启动时加载此对象,并初始化前端控制器,加载spring  mvc核心配置类

package com.ck.common.config;

import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;

public class WebAppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {

	@Override
	protected Class<?>[] getRootConfigClasses() {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	protected Class<?>[] getServletConfigClasses() {
		// TODO Auto-generated method stub
		return new Class[] { AppServletConfig.class };
	}

	@Override
	protected String[] getServletMappings() {
		// TODO Auto-generated method stub
		return new String[] { "*.do" };
	}

}

四、创建控制层对象

4.1 前端

package com.ck.common.config;

import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;

public class WebAppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {

	@Override
	protected Class<?>[] getRootConfigClasses() {
		return null;
	}
	@Override
	protected Class<?>[] getServletConfigClasses() {
		return new Class[] { AppServletConfig.class };
	}
	@Override
	protected String[] getServletMappings() {
		return new String[] { "*.do" };
	}
}

4.2 后端

package com.ck.common.config;

import org.springframework.context.annotation.ComponentScan;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ViewResolverRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

@ComponentScan("com.ck")
@EnableWebMvc
public class AppServletConfig extends WebMvcConfigurerAdapter {
	@Override
	public void configureViewResolvers(ViewResolverRegistry registry) {
		registry.jsp("/WEB-INF/pages/", ".jsp");
	}
}