SpringMVC4 注解配置实例

SpringMVC4 注解配置实例结构：maven配置：<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>java-springmvc-demo6</groupId><artifactId>java-springmvc-demo6</artifactId><packaging>war</packaging><version>1.0-SNAPSHOT</version><name>java-springmvc-demo6 Maven Webapp</name><url>http://maven.apache.org</url><！--项目依赖 --><dependencies><！--日志包--><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>3.8.1</version><scope>test</scope></dependency><dependency><groupId>org.slf4j</groupId><artifactId>slf4j-log4j12</artifactId><version>1.7.21</version></dependency><！--j2ee相关包 servlet、jsp、jstl--><dependency><groupId>javax.servlet</groupId><artifactId>javax.servlet-api</artifactId><version>3.1.0</version></dependency><dependency><groupId>javax.servlet.jsp</groupId><artifactId>jsp-api</artifactId><version>2.2</version></dependency><dependency><groupId>javax.servlet</groupId><artifactId>jstl</artifactId><version>1.2</version></dependency><！--spring相关包--><dependency><groupId>org.springframework</groupId><artifactId>spring-web</artifactId><version>4.3.1.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId><version>4.3.1.RELEASE</version></dependency><！--其他需要的包--><dependency><groupId>org.apache.commons</groupId><artifactId>commons-lang3</artifactId><version>3.4</version></dependency><dependency><groupId>commons-fileupload</groupId><artifactId>commons-fileupload</artifactId><version>1.3.1</version></dependency></dependencies><build><finalName>maven-springmvc</finalName><resources><！--表示把java目录下的有关xml文件,properties文件编译/打包的时候放在resource目录下--><resource><directory>${basedir}/src/main/java</directory><includes><include>**/*.properties</include><include>**/*.xml</include></includes></resource><resource><directory>${basedir}/src/main/resources</directory></resource></resources><plugins><！--servlet容器 jetty插件--><plugin><groupId>org.eclipse.jetty</groupId><artifactId>jetty-maven-plugin</artifactId><version>9.3.10.v20160621</version></plugin><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-compiler-plugin</artifactId><configuration><source>1.6</source><target>1.6</target></configuration></plugin></plugins></build></project> web.xml：<？xml version="1.0" encoding="UTF-8"？><web-app id="WebApp_ID" version="2.5"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"><display-name>java-springmvc-demo5</display-name><servlet><servlet-name>SpringMVC</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><！-- 默认的servlet.xml文件是放在WEB-INF目录下，名称与<servlet-name>的名字要相关。但可以通过以下设置重新自定义servlet.xml配置文件的位置和名称。--><！--<init-param>--> <！--<param-name>contextConfigLocation</param-name>--> <！--<param-value>/WEB-INF/SpringMVC-servlet.xml</param-value>--><！--</init-param>--><load-on-startup>1</load-on-startup></servlet><servlet-mapping><servlet-name>SpringMVC</servlet-name><url-pattern>/</url-pattern></servlet-mapping><！--欢迎页面--><welcome-file-list><welcome-file>index.jsp</welcome-file></welcome-file-list></web-app> SpringMVC-servlet.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:p="http://www.springframework.org/schema/p" 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-3.0.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsdhttp://www.springframework.org/schema/mvchttp://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd"><！-- 默认扫描的包路径 --><context:component-scan base-package="com.example.controller" /><！-- 添加注解驱动 --><mvc:annotation-driven /><！--所有的访问都统一先由InternalResourceViewResolver类处理--><bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"><！--定义跳转的文件的前缀（jsp文件所在目录）--><property name="prefix" value="/" /><！-- 定义跳转的文件的后缀 --><property name="suffix" value=".jsp" /></bean></beans>
HelloController.java：import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;@Controller//该注解用来识别控制器@RequestMapping（"hello"）//该注解用来控制url书写时，控制器的选择public class HelloController{@RequestMapping（"helloworld"）//该注解用来控制url书写时，具体方法的选择（还可以绑定参数等）public String helloworld（） {return "hello_world";//跳转到jsp页面}}之后通过“http://localhost:8080/hello/helloworld”可访问到hello_world.jsp页面本文永久更新链接地址：http://www.linuxidc.com/Linux/2017-01/139642.htm