WebService 之CXF(rs)之HelloWorld

1.建立mavenjava项目

 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>cn.itcast.maven</groupId>
   <artifactId>cxf_rs_HelloWorld</artifactId>
   <version>0.0.1-SNAPSHOT</version>
   <name>cxf_rs_HelloWorld</name>

   <dependencies>
         <dependency>
             <groupId>org.apache.cxf</groupId>
             <artifactId>cxf-rt-frontend-jaxrs</artifactId>
             <version>3.0.1</version>
         </dependency>

         <dependency>
             <groupId>org.apache.cxf</groupId>
             <artifactId>cxf-rt-transports-http-jetty</artifactId>
             <version>3.0.1</version>
         </dependency>

         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-log4j12</artifactId>
             <version>1.7.12</version>
         </dependency>

         <dependency>
             <groupId>org.apache.cxf</groupId>
             <artifactId>cxf-rt-rs-client</artifactId>
             <version>3.0.1</version>
         </dependency>

         <dependency>
             <groupId>org.apache.cxf</groupId>
             <artifactId>cxf-rt-rs-extension-providers</artifactId>
             <version>3.0.1</version>
         </dependency>

         <dependency>
             <groupId>org.codehaus.jettison</groupId>
             <artifactId>jettison</artifactId>
             <version>1.3.7</version>
         </dependency>
   </dependencies>
 </project>

pom.xml

 ### direct log messages to stdout ###
 log4j.appender.stdout=org.apache.log4j.ConsoleAppender
 log4j.appender.stdout.Target=System.out
 log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
 log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n

 ### direct messages to file mylog.log ###
 log4j.appender.file=org.apache.log4j.FileAppender
 log4j.appender.file.File=c:/mylog.log
 log4j.appender.file.layout=org.apache.log4j.PatternLayout
 log4j.appender.file.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n

 ### set log levels - for more verbose logging change 'info' to 'debug' ###

 log4j.rootLogger=info, stdout

log4j-properties

2.创建实体类和服务接口

 package cn.itcast.cxf.domain;

 import javax.xml.bind.annotation.XmlRootElement;

 @XmlRootElement(name = "Car")
 public class Car {
     private Integer id;
     private String carName;
     private Double price;

     public Integer getId() {
         return id;
     }

     public void setId(Integer id) {
         this.id = id;
     }

     public String getCarName() {
         return carName;
     }

     public void setCarName(String carName) {
         this.carName = carName;
     }

     public Double getPrice() {
         return price;
     }

     public void setPrice(Double price) {
         this.price = price;
     }

     @Override
     public String toString() {
         return "Car [id=" + id + ", carName=" + carName + ", price=" + price + "]";
     }

 }

Car

 package cn.itcast.cxf.domain;

 import java.util.ArrayList;
 import java.util.List;

 import javax.xml.bind.annotation.XmlRootElement;
 //指定序列化(转换xml或json)对象的名字
 @XmlRootElement(name = "User")
 public class User {
     private Integer id;
     private String username;
     private String city;

     private List<Car> cars = new ArrayList<Car>();

     public Integer getId() {
         return id;
     }

     public void setId(Integer id) {
         this.id = id;
     }

     public String getUsername() {
         return username;
     }

     public void setUsername(String username) {
         this.username = username;
     }

     public String getCity() {
         return city;
     }

     public void setCity(String city) {
         this.city = city;
     }

     public List<Car> getCars() {
         return cars;
     }

     public void setCars(List<Car> cars) {
         this.cars = cars;
     }

     @Override
     public String toString() {
         return "User [id=" + id + ", username=" + username + ", city=" + city + ", cars=" + cars + "]";
     }

 }

User

 package cn.itcast.cxf.service;

 import java.util.List;

 import javax.ws.rs.Consumes;
 import javax.ws.rs.DELETE;
 import javax.ws.rs.GET;
 import javax.ws.rs.POST;
 import javax.ws.rs.PUT;
 import javax.ws.rs.Path;
 import javax.ws.rs.PathParam;
 import javax.ws.rs.Produces;

 import cn.itcast.cxf.domain.User;

 @Path("/userService")//服务访问资源路径
 @Produces("*/*")生成(返回值)可以不写
 public interface IUserService {

     @POST
     @Path("/user")///userService/user
     @Consumes({ "application/xml", "application/json" })  //消费(客户端传过来的数据,即接受的数据)
     public void saveUser(User user);

     @PUT
     @Path("/user")
     @Consumes({ "application/xml", "application/json" })
     public void updateUser(User user);

     @GET
     @Path("/user")
     @Produces({ "application/xml", "application/json" })//产生(返回到客户端的数据的格式)
     public List<User> findAllUsers();

     @GET
     @Path("/user/{id}")
     @Consumes("application/xml")
     public User finUserById(@PathParam("id") Integer id);

     @DELETE
     @Path("/user/{id}")
     @Consumes("application/xml")
     public void deleteUser(@PathParam("id") Integer id);
 }

IUservice

 package cn.itcast.cxf.service;

 import java.util.ArrayList;
 import java.util.List;

 import cn.itcast.cxf.domain.Car;
 import cn.itcast.cxf.domain.User;

 public class UserServiceImpl implements IUserService {

     public void saveUser(User user) {
         System.out.println("save user:" + user);
     }

     public void updateUser(User user) {
         System.out.println("update user:" + user);
     }

     public List<User> findAllUsers() {
         List<User> users = new ArrayList<User>();
         User user1 = new User();
         user1.setId(1);
         user1.setUsername("小明");
         user1.setCity("北京");

         List<Car> carList1 = new ArrayList<Car>();
         Car car1 = new Car();
         car1.setId(101);
         car1.setCarName("保时捷");
         car1.setPrice(1000000d);
         carList1.add(car1);
         Car car2 = new Car();
         car2.setId(102);
         car2.setCarName("宝马");
         car2.setPrice(400000d);
         carList1.add(car2);
         user1.setCars(carList1);

         users.add(user1);

         User user2 = new User();
         user2.setId(2);
         user2.setUsername("小丽");
         user2.setCity("上海");
         users.add(user2);

         return users;
     }

     public User finUserById(Integer id) {
         if (id == 1) {
             User user1 = new User();
             user1.setId(1);
             user1.setUsername("小明");
             user1.setCity("北京");
             return user1;
         }
         return null;
     }

     public void deleteUser(Integer id) {
         System.out.println("delete user id :" + id);
     }

 }

UserviceImpl

@GET 查询 @PUT 修改 @POST 增加 @DELETE 删除

3.发布服务

 package cn.itcast.cxf.rs.server;

 import org.apache.cxf.interceptor.LoggingInInterceptor;
 import org.apache.cxf.interceptor.LoggingOutInterceptor;
 import org.apache.cxf.jaxrs.JAXRSServerFactoryBean;

 import cn.itcast.cxf.domain.Car;
 import cn.itcast.cxf.domain.User;
 import cn.itcast.cxf.service.IUserService;
 import cn.itcast.cxf.service.UserServiceImpl;

 public class RS_Server {
     public static void main(String[] args) {
         IUserService userService = new UserServiceImpl();

         JAXRSServerFactoryBean restServer = new JAXRSServerFactoryBean();
         restServer.setResourceClasses(User.class, Car.class);
         restServer.setServiceBean(userService);
         restServer.setAddress("http://localhost:9999/");

         // 打印日志
         restServer.getInInterceptors().add(new LoggingInInterceptor());
         restServer.getOutInterceptors().add(new LoggingOutInterceptor());

         restServer.create();
     }
 }

Server

4.客户端程序的编写Webclient工具类使用

 package cn.itcast.cxf.rs.client;

 import java.util.Collection;

 import javax.ws.rs.core.MediaType;

 import org.apache.cxf.jaxrs.client.WebClient;

 import cn.itcast.cxf.domain.User;

 public class RS_Client {
     public static void main(String[] args) {
         User user = new User();
         user.setId(3);
         user.setUsername("小美");
         user.setCity("深圳");

         // 根据id查询
         WebClient client = WebClient.create("http://localhost:9999/");
         User responseUser = client.path("userService/user/1").accept(MediaType.APPLICATION_XML).get(User.class);
         System.out.println(responseUser);

         // 增加
         WebClient.create("http://localhost:9999/").path("userService/user").accept(MediaType.APPLICATION_XML)
                 .post(user);

         // 修改
         WebClient.create("http://localhost:9999/").path("userService/user").type(MediaType.APPLICATION_JSON).put(user);

         // 删除
         WebClient.create("http://localhost:9999/").path("userService/user/1").accept(MediaType.APPLICATION_XML)
                 .delete();

         // 查询所有用户
         Collection<? extends User> users = WebClient.create("http://localhost:9999/").path("userService/user")
                 .accept(MediaType.APPLICATION_JSON).getCollection(User.class);
         System.out.println(users);
     }
 }

Client