通过CXF，开发rest协议接口

1. 引入cxf的jar包
pom文件里面直接增加依赖
< dependency>
<groupId > junit</ groupId>
<artifactId > junit</ artifactId>
<version >4.11 </version >
<scope >test </scope >
</dependency >
<dependency >
<groupId >org.springframework </groupId >
<artifactId >spring- webmvc</ artifactId>
<version >4.0.0.RELEASE </version >
</dependency >
<dependency >
<groupId >org.apache.cxf </groupId >
<artifactId > apache-cxf </artifactId >
<version >2.4.3</version >
<type > pom</ type>
</dependency >

2. 配置web.xml文件
<? xml version= "1.0" encoding= "UTF-8" ?>
< web-app xmlns= "http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi= "http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation= "http://xmlns.jcp.org/xml/ns/javaee
http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version= "3.1" >

< display-name >Archetype Created Web Application </display-name >
< context-param >
<param-name >contextConfigLocation </param-name >
<param-value >classpath:config/spring/metadataWebService-spring.xml </param-value >
</context-param >
<listener >
<listener-class >org.springframework.web.context.ContextLoaderListener </listener-class >
</listener >
<servlet >
<servlet-name >CXFServlet </servlet-name >
<servlet-class >org.apache.cxf.transport.servlet.CXFServlet </servlet-class >
</servlet >
<servlet-mapping >
<servlet-name >CXFServlet </servlet-name >
<url-pattern >/services/* </url-pattern >
</servlet-mapping >
<filter >
<filter-name >encodingFilter </filter-name >
< filter-class> org.springframework.web.filter.CharacterEncodingFilter </filter-class >
<init-param >
<param-name >encoding </param-name >
<param-value >UTF-8 </param-value >
</init-param >
<init-param >
<param-name >forceEncoding </param-name >
<param-value >true </param-value >
</init-param >
</filter >
<filter-mapping >
<filter-name >encodingFilter </filter-name >
<url-pattern >/* </url-pattern >
</filter-mapping >
</ web-app>

3. 配置cxf.xml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:jaxws= "http://cxf.apache.org/jaxws"
xmlns:context= "http://www.springframework.org/schema/context"
xmlns:jaxrs= "http://cxf.apache.org/jaxrs"
xsi:schemaLocation= "http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://cxf.apache.org/jaxws
http://cxf.apache.org/schemas/jaxws.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://cxf.apache.org/jaxrs
http://cxf.apache.org/schemas/jaxrs.xsd" >

<import resource = "classpath:META-INF/cxf/cxf.xml" />
<import resource = "classpath:META-INF/cxf/cxf-servlet.xml" />
<context:annotation-config />

<!-- 扫描开启服务的包路径，在base-package下面所有的类都会扫描 -->
< context:component-scan base-package= "com.sigmatrix.ws" />

<!-- REST 服务开放 id和address都是唯一的，在这里开通了两个id，ref可以有多个，bean的名称为接口实现类第一个字母小写-->
<jaxrs:server id = "metadata" address= "/metadata" >
<jaxrs:serviceBeans >
<ref bean = "metadataRestImpl"/>
</jaxrs:serviceBeans >
</jaxrs:server >
<jaxrs:server id = "dictionary" address= "/dictionary" >
<jaxrs:serviceBeans >
<ref bean = "dictionaryRestImpl"/>
</jaxrs:serviceBeans >
</jaxrs:server >
</ beans>

4. 要开放的接口加上cxf服务的注解
接口类：
public interface IMetadataRest {
/**
* 查询所有字典字典项信息
* @return
*/
@POST
@Path( "findAllDictionary")
public abstract String findAllDictionary();
}
接口实现类：
//加入注解
@Component
public class MetadataRestImpl implements IMetadataRest {
@Override
public String findAllDictionary () {
return "Hello World";
}
}

5. 部署到tomcat启动即可，测试访问 ip:端口号//项目名称/services/