1.建立maven webapp工程aty-rest。

2. 在pom文件增加spring框架、jax-rs接口、CXF实现

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1. <dependency>  
2.     <groupId>javax.ws.rs</groupId>  
3.     <artifactId>javax.ws.rs-api</artifactId>  
4.     <version>2.0</version>  
5. </dependency>  
6.   
7. <dependency>  
8.     <groupId>org.springframework</groupId>  
9.     <artifactId>spring-web</artifactId>  
10.     <version>3.1.1.RELEASE</version>  
11. </dependency>  
12.   
13. <dependency>  
14.     <groupId>org.apache.cxf</groupId>  
15.     <artifactId>cxf-rt-frontend-jaxrs</artifactId>  
16.     <version>3.0.0</version>  
17. </dependency>  

3.编写rest接口和实现类

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1. public interface INameService  
2. {  
3.     @GET  
4.     @Path("/welcome/")  
5.     @Produces(MediaType.APPLICATION_JSON)  
6.     public String welcome();  
7. }  
8.   
9. //   
10. @Component("nameServiceImpl")  
11. public class NameServiceImpl implements INameService  
12. {  
13.     public String welcome()  
14.     {  
15.         return "{\"name\":123}";  
16.     }  
17. }  

4.web.xml中启动sping和cxf

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1. <!-- Spring -->  
2.     <context-param>  
3.         <param-name>contextConfigLocation</param-name>  
4.         <param-value>classpath:spring.xml</param-value>  
5.     </context-param>  
6.     <listener>  
7.         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  
8.     </listener>  
9.   
10.     <!-- CXF -->  
11.     <servlet>  
12.         <servlet-name>cxf</servlet-name>  
13.         <servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class>  
14.     </servlet>  
15.     <servlet-mapping>  
16.         <servlet-name>cxf</servlet-name>  
17.         <url-pattern>/rest/*</url-pattern>  
18.     </servlet-mapping>  

4.配置cxf-spring.xml，并在spring.xml中将其包含进去

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1. <?xml version="1.0" encoding="UTF-8"?>  
2. <beans xmlns="http://www.springframework.org/schema/beans"  
3.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
4.     xmlns:jaxrs="http://cxf.apache.org/jaxrs"  
5.     xsi:schemaLocation="http://www.springframework.org/schema/beans  
6.     http://www.springframework.org/schema/beans/spring-beans-3.0.xsd  
7.     http://cxf.apache.org/jaxrs  
8.     http://cxf.apache.org/schemas/jaxrs.xsd">  
9.   
10.     <jaxrs:server address="/greet">  
11.         <jaxrs:serviceBeans>  
12.             <ref bean="nameServiceImpl"/>  
13.         </jaxrs:serviceBeans>  
14.     </jaxrs:server>  
15.       
16. </beans>  

5.用maven打包，将war部署到tomcat下。

一切正常即可通过http://127.0.0.1:8080/aty-rest/rest/greet/welcome访问我们发布的rest服务。

JAX-RS开发 world