Apache CXF实战之四 构建RESTful Web Service

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　　文章摘抄至 http://blog.csdn.net/kongxx/article/details/7527115
　　1. 首先是实体类，注意其中的@XmlRootElement注解

package restful.model;
import java.util.Date;  
import javax.xml.bind.annotation.XmlRootElement;  
@XmlRootElement(name="Customer")   
public class Customer {  
private String id;  
private String name;  
private Date birthday;  
public String getId() {  
return id;  
}  
public void setId(String id) {  
this.id = id;  
}  
public String getName() {  
return name;  
}  
public void setName(String name) {  
this.name = name;  
}  
public Date getBirthday() {  
return birthday;  
}  
public void setBirthday(Date birthday) {  
this.birthday = birthday;  
}  
@Override  
public String toString() {  
return org.apache.commons.lang.builder.ToStringBuilder.reflectionToString(this);  
}  
}  

　　2. RESTful Web Service接口类，可以通过修改@Produces注解来声明暴露接口返回的json还是xml数据格式

package restful.service;

import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import restful.model.Customer;
@Path(value = "/customer")   
//@Produces("*/*")  
@Produces("application/xml")  
//@Produces("application/json")  
public interface CustomerService {  
@GET  
@Path(value = "/{id}/info")  
Customer findCustomerById(@PathParam("id")String id);  
@GET  
@Path(value = "/search")  
Customer findCustomerByName(@QueryParam("name")String name);  
}  

　　3. RESTful Web Service接口实现类

package restful.service;
import java.util.Calendar;  
import javax.ws.rs.core.MediaType;
import restful.model.Customer;
public class CustomerServiceImpl implements CustomerService {  
public Customer findCustomerById(String id) {
Customer customer = new Customer();  
customer.setId(id);  
customer.setName(id);  
customer.setBirthday(Calendar.getInstance().getTime());  
return customer;  
}  
public Customer findCustomerByName(String name) {  
Customer customer = new Customer();  
customer.setId(name);  
customer.setName(name);  
customer.setBirthday(Calendar.getInstance().getTime());  
return customer;  
}  
}  
　　4. Server端代码

package restful.deploy;
import org.apache.cxf.interceptor.LoggingInInterceptor;  
import org.apache.cxf.interceptor.LoggingOutInterceptor;  
import org.apache.cxf.jaxrs.JAXRSServerFactoryBean;  
import restful.service.CustomerServiceImpl;
public class MyServer {  
public static void main(String[] args) throws Exception {  
JAXRSServerFactoryBean factoryBean = new JAXRSServerFactoryBean();  
//        factoryBean.getInInterceptors().add(new LoggingInInterceptor());  
//        factoryBean.getOutInterceptors().add(new LoggingOutInterceptor());  
factoryBean.setResourceClasses(CustomerServiceImpl.class);  
factoryBean.setAddress("http://localhost:9000/ws/jaxrs");  
factoryBean.create();  
}  
}  

　　5. Client端代码

package restful.client;
import org.apache.commons.httpclient.HttpClient;  
import org.apache.commons.httpclient.HttpStatus;  
import org.apache.commons.httpclient.methods.GetMethod;  
public class MyClient {  
public static void main(String[] args) throws Exception {  
go("http://localhost:9000/ws/jaxrs/customer/1/info");  
go("http://localhost:9000/ws/jaxrs/customer/search?name=abc");  
}  
private static void go(String url) throws Exception {  
HttpClient client = new HttpClient();  
GetMethod method = new GetMethod(url);  
int statusCode = client.executeMethod(method);  
if (statusCode != HttpStatus.SC_OK) {  
System.err.println("Method failed: " + method.getStatusLine());  
}  
byte[] responseBody = method.getResponseBody();  
System.out.println(new String(responseBody));  
}  
}  
　　6.测试
　　首先运行MyServer类，然后运行MyClient类来验证Web Service。