Apache CXF实战之四:构建RESTful Web Service
这篇文章介绍一下怎么通过CXF来发布RESTful的Web Service.1. 首先是实体类，注意其中的@XmlRootElement注解
[*]package com.googlecode.garbagecan.cxfstudy.jaxrs;
[*]
[*]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 com.googlecode.garbagecan.cxfstudy.jaxrs;
[*]
[*]import javax.ws.rs.GET;
[*]import javax.ws.rs.Path;
[*]import javax.ws.rs.PathParam;
[*]import javax.ws.rs.Produces;
[*]import javax.ws.rs.QueryParam;
[*]
[*]@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 com.googlecode.garbagecan.cxfstudy.jaxrs;
[*]
[*]import java.util.Calendar;
[*]
[*]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 com.googlecode.garbagecan.cxfstudy.jaxrs;
[*]
[*]import org.apache.cxf.interceptor.LoggingInInterceptor;
[*]import org.apache.cxf.interceptor.LoggingOutInterceptor;
[*]import org.apache.cxf.jaxrs.JAXRSServerFactoryBean;
[*]
[*]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 com.googlecode.garbagecan.cxfstudy.jaxrs;
[*]
[*]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。
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