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配置pom文件依赖库版本，及spring依赖管理 （Maven自动来管理Spring版本）
<properties> <spring.version>4.1.3.RELEASE</spring.version> <commons.lang.version>2.6</commons.lang.version> <slf4j.version>1.7.6</slf4j.version> </properties> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-framework-bom</artifactId> <version>${spring.version}</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement>-
bom : 材料清单
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Spring为了解决jar包冲突，推出spring-framework-bom、spring-boot-dependencies、platform-bom用来统一管理Spring版本。
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导入 Spring MVC 及其依赖jar包
<dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>${slf4j.version}</version> <exclusions> <exclusion> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>commons-lang</groupId> <artifactId>commons-lang</artifactId> <version>${commons.lang.version}</version> </dependency> -
配置web.xml 加入Spring核心类 DispacherServlet
<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> <servlet> <servlet-name>mvc-dispatcher</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!-- DispatcherServlet 对应的上下文配置,默认为WEB-INF/${servlet-name}-servlet.xml --> <init-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/configs/spring/mvc-dispatcher.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>mvc-dispatcher</servlet-name> <!--默认拦截所有请求--> <url-pattern>/</url-pattern> </servlet-mapping> </web-app>-
init-param
可以不去配置，省略后默为/WEB-INF/${servlet-name}-servlet.xml
配置时配置contextConfigLocation参数 value = url
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web-app
2.3及之前版本默认关闭el表达式
2.4版本默认开启el表达式
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添加Spring MVC 配置文件
<?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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> <!--激活注解配置--> <context:annotation-config/> <!--配置只关注@Contraller标注的Bean--> <context:component-scan base-package="com.bjchaney.springmvc"> <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> <!--HandlerMapping 不需要配置 SpringMVC 默认启用DefaultAnnotationHandlerMapping--> <!--扩充了注解驱动--> <mvc:annotation-driven/> <!--引入静态资源--> <mvc:resources mapping="/resources/*" location="/resources/"/> <!--配置ViewResolver 可以配置多个ViewResolver, 使用order属性排序, InternalResourceViewResolver 放在最后 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!--配置使用支持jstl的view--> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/> <property name="prefix" value="/WEB-INF/jsp/"/> <property name="suffix" value=".jsp"/> </bean> </beans>- Spring-MVC 所有的配置完成
- 之后加入Spring来管理Service层和dao层，实现ApplicationContext层次化
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在 web.xml中加入Spring应用的上下文
<!--Spring 应用上下文 层次化 applicationContext--> <context-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/configs/spring/applicationContext*.xml</param-value> </context-param> <listener> <listener-class> org.springframework.web.context.ContextLoaderListener </listener-class> </listener> -
添加Spring容器的配置文件
<?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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> <!--激活注解配置--> <context:annotation-config/> <!--配置关注除@Contraller标注之外的Bean--> <context:component-scan base-package="com.bjchaney.springmvc"> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> </beans> -
添加常用 ViewResolver
<!--文件上传viewResolver--> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="maxUploadSize" value="2000000"/> <property name="defaultEncoding" value="UTF-8"/> <property name="resolveLazily" value="true"/> </bean> <!-- ContentNegotiatingViewResolver 提供相同内容不同表现形式的viewResolver 此处用来返回Json数据 --> <bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver"> <property name="order" value="1"/> <property name="mediaTypes"> <map> <entry key="json" value="application/json"/> <entry key="xml" value="application/xml"/> <entry key="html" value="text/html"/> </map> </property> <property name="defaultViews"> <list> <bean class="org.springframework.web.servlet.view.json.MappingJackson2JsonView"> </bean> </list> </property> <property name="ignoreAcceptHeader" value="true"/> </bean> -
编写Controller进行 相应操作Example
@Controller @RequestMapping("/hello") public class HelloController { @Autowired UserService userService; @RequestMapping(value = "/impl1",method = RequestMethod.GET) public String hello(String name,Model model){ model.addAttribute("name", userService.getFotmatName(name)); return "hello"; } @RequestMapping(value = "/impl2",method = RequestMethod.GET) public String hello(String name,Map<String,String> model){ model.put("name", userService.getFotmatName(name)); return "hello"; } @RequestMapping(value = "/impl3",method = RequestMethod.GET) public String hello(HttpServletRequest request){ String name = request.getParameter("name"); request.setAttribute("name", userService.getFotmatName(name)); return "hello"; } @RequestMapping(value = "/json",method = RequestMethod.GET) @ResponseBody public RestResponse<String> hello(@ModelAttribute("name") String name){ RestResponse restResponse = new RestResponse(); return restResponse.success(name); } @RequestMapping(value = "/upload",method = RequestMethod.GET) public String hello(){ return "upload"; } @RequestMapping(value = "/doUpload",method = RequestMethod.POST) public String doUpload(MultipartFile file) throws Exception{ if(!file.isEmpty()){ userService.CopyFile(file.getInputStream(), "~/Documents/1.jpg"); } return "success"; } }
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