用Spring MVC搭建REST风格的服务

什么都不说了，直接上代码。

我使用Maven管理项目，JDK为1.7，Tomcat为7.0

Maven配置如下：

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>3.2.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>3.2.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>3.2.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>3.2.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>3.2.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>3.2.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-oxm</artifactId>
<version>3.2.6.RELEASE</version>
</dependency>

<!-- Servlet -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>

<!-- for json -->
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-core-asl</artifactId>
<version>1.8.4</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.8.4</version>
</dependency>

<!-- for xml -->
<dependency>
<groupId>com.thoughtworks.xstream</groupId>
<artifactId>xstream</artifactId>
<version>1.4.7</version>
</dependency>

web.xml配置如下：

<!-- Servlet that dispatches request to registered handlers (Controller 
implementations). -->
<servlet>
<servlet-name>games</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:config/mvc-core-config.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>games</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>

<!-- 浏览器不支持put,delete等method,由该filter将/blog?_method=delete转换为标准的http delete方法 -->
<filter>
<filter-name>httpMethodFilter</filter-name>
<filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
</filter>

<filter-mapping>
<filter-name>httpMethodFilter</filter-name>
<servlet-name>games</servlet-name>
</filter-mapping>

mvc-core-config.xml配置如下：

<?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/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
 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-3.2.xsd">

<!-- 启用spring mvc 注解，这个可以不配置。Spring在context:component-scan已经默认了 -->
<!-- <context:annotation-config /> -->

<!-- 扫描action包，应用Spring的注解 -->
<context:component-scan base-package="com.tongbu.games.web" />

<!-- 指定内容协商管理器的bean -->
<mvc:annotation-driven
content-negotiation-manager="contentNegotiationManager">
</mvc:annotation-driven>

<!-- 以下配置SpringMVC的拦截器 -->
<mvc:interceptors>
<bean id="requestResponseInterceptor"
class="com.tongbu.games.basic.iterceptor.RequestResponseInterceptor"></bean>
</mvc:interceptors>

<!-- 这样静态资源就可以访问了 -->
<mvc:default-servlet-handler />

<!-- Spring MVC的视图配置 -->
<import resource="mvc-view-config.xml" />

<!-- message处理见Spring例子 -->
<bean id="messageSource"
class="org.springframework.context.support.ResourceBundleMessageSource"
p:basename="messages/messages" />

<!-- 异常处理见Spring例子 -->
<!-- Mapping exception to the handler view -->
<bean id="exceptionResolver"
class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
<property name="exceptionMappings">
<props>
</props>
</property>
</bean>

</beans>

mvc-view-config.xml配置如下：

<?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:c="http://www.springframework.org/schema/c"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

<!-- 配置内容协商视图解析 -->
<bean id="contentNegotiatingViewResolver"
class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
<!-- 设置内容协商管理器 -->
<property name="contentNegotiationManager" ref="contentNegotiationManager"></property>
<!-- 设置默认视图 -->
<property name="defaultViews">
<list>
<ref bean="mappingJacksonJsonView" />
<ref bean="marshallingView" />
</list>
</property>
<!-- 设置视图解析器 -->
<property name="viewResolvers">
<list>
<ref bean="defalutViewResolver" />
</list>
</property>
</bean>

<bean id="defalutViewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/view"></property>
<property name="suffix" value=".jsp"></property>
</bean>

<!-- JSON视图 -->
<bean id="mappingJacksonJsonView"
class="org.springframework.web.servlet.view.json.MappingJacksonJsonView"></bean>

<!-- XML视图 -->
<bean id="marshallingView"
class="org.springframework.web.servlet.view.xml.MarshallingView">
<property name="marshaller">
<bean class="org.springframework.oxm.xstream.XStreamMarshaller">
</bean>
</property>
</bean>

<bean id="contentNegotiationManager"
class="org.springframework.web.accept.ContentNegotiationManagerFactoryBean">
<property name="mediaTypes">
<props>
<prop key="json">application/json;charset=utf-8</prop>
<prop key="xml">application/xml;charset=utf-8</prop>
<prop key="do">application/json;charset=utf-8</prop>
</props>
</property>
<property name="ignoreAcceptHeader" value="true"></property>
<!-- 设置默认的 ContentType为application/json-->
<property name="defaultContentType" value="application/json"></property>
</bean>

</beans>

Controller代码如下：

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

import com.tongbu.games.web.BaseController;


@Controller
@RequestMapping("/testController")
public class TestController extends BaseController {

@RequestMapping("/test")
public ModelAndView test(){

System.out.println(getRequest().getParameter("id"));
ModelAndView mav = new ModelAndView();
mav.addObject(getRequest().getParameter("id"));

return mav;
}

}