Apache CXF实现的RESTful形式的webservices

我在上一篇文章（http://www.zifangsky.cn/2016/03/apache-cxf实现的soap形式的webservices/）中说了下如何实现SOAP方式的web service，这篇文章将继续说明如何实现RESTful形式的web service
（1）项目结构：在这里，我没有新建一个项目，而是在上一个项目的基础上实现的，具体来说就是新建了3个文件，如下图所示：


其中，User类是一个普通的实体类，RestService和RestServiceImpl类分别表示服务接口和它的实现类（2）User.java：

package cn.zifangsky.entity;

import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement(name="userInfo")
public class User {
private int id;
private String name;
private String contact;

public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getContact() {
return contact;
}
public void setContact(String contact) {
this.contact = contact;
}

}

（3）RestService.java：

package cn.zifangsky.service;

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;

import cn.zifangsky.entity.User;

public interface RestService {

@GET
@Path(value="/user/{id}")
@Produces(value = { MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON })
public User getUser(@PathParam("id") int id);
}

（4）RestServiceImpl.java：

package cn.zifangsky.service.impl;

import cn.zifangsky.entity.User;
import cn.zifangsky.service.RestService;

public class RestServiceImpl implements RestService {
public User getUser(int id) {
User user = new User();
user.setId(id);
user.setName("zifangsky");
user.setContact("http://www.zifangsky.cn");
return user;
}

}

（5）web.xml不变，修改service-beans.xml：添加<jaxrs:server></jaxrs:server>节点，表示是RESTful服务

<jaxrs:server id="userRest" address="/services/rest">
<jaxrs:serviceBeans>
<bean class="cn.zifangsky.service.impl.RestServiceImpl" />
</jaxrs:serviceBeans>

<jaxrs:extensionMappings>
<entry key="json" value="application/json" />
<entry key="xml" value="application/xml" />
</jaxrs:extensionMappings>

</jaxrs:server>

添加之后，service-beans.xml这个文件的完整代码是：

<?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:jaxrs="http://cxf.apache.org/jaxrs" xmlns:soap="http://cxf.apache.org/bindings/soap"
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://cxf.apache.org/jaxrs http://cxf.apache.org/schemas/jaxrs.xsd ">

<bean id="outLoggingInterceptor" class="org.apache.cxf.interceptor.LoggingOutInterceptor" />
<bean id="loggingFeature" class="org.apache.cxf.feature.LoggingFeature" />
<bean id="inLoggingInterceptor" class="org.apache.cxf.interceptor.LoggingInInterceptor" />
<jaxws:server id="sayHelloServices" serviceClass="cn.zifangsky.service.CXFService" address="/services/soap" >
<jaxws:serviceBean>
<bean class="cn.zifangsky.service.impl.CXFServiceImpl" />
</jaxws:serviceBean>
<jaxws:outInterceptors>
<ref bean="outLoggingInterceptor" />
</jaxws:outInterceptors>
<jaxws:inInterceptors>
<ref bean="inLoggingInterceptor" />
</jaxws:inInterceptors>
<jaxws:features>
<ref bean="loggingFeature" />
<wsa:addressing xmlns:wsa="http://cxf.apache.org/ws/addressing" />
</jaxws:features>

</jaxws:server>

<jaxrs:server id="userRest" address="/services/rest">
<jaxrs:serviceBeans>
<bean class="cn.zifangsky.service.impl.RestServiceImpl" />
</jaxrs:serviceBeans>

<jaxrs:extensionMappings>
<entry key="json" value="application/json" />
<entry key="xml" value="application/xml" />
</jaxrs:extensionMappings>

</jaxrs:server>

</beans>

（6）测试：整个配置到这里已经就完成了，在tomcat中启动项目，效果是这样：


在浏览器中访问：http://localhost:8080/CXFDemo/services/rest/user/9



可以看出，结果是正确，到此全部配置结束