cxf整合spring发布rest服务 httpclient访问服务

1.创建maven web项目并添加依赖

pom.xml

 <properties>
       <webVersion>3.0</webVersion>
       <cxf.version>3.2.5</cxf.version>
       <spring.version>4.3.18.RELEASE</spring.version>
       <jettison.version>1.4.0</jettison.version>
   </properties>

   <dependencies>
         <!--spring依赖-->
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-core</artifactId>
             <version>${spring.version}</version>
         </dependency>
           <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-web</artifactId>
                 <version>${spring.version}</version>
         </dependency>
          <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-beans</artifactId>
             <version>${spring.version}</version>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-context-support</artifactId>
             <version>${spring.version}</version>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-context</artifactId>
             <version>${spring.version}</version>
         </dependency>
      <!-- <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-aop</artifactId>
             <version>${spring.version}</version>
         </dependency>
         -->
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-simple</artifactId>
             <version>1.7.25</version>
         </dependency>

         <!-- cxf依赖 -->
           <dependency>
             <groupId>org.apache.cxf</groupId>
             <artifactId>cxf-core</artifactId>
             <version>${cxf.version}</version>
         </dependency>
           <dependency>
             <groupId>org.apache.cxf</groupId>
             <artifactId>cxf-rt-frontend-jaxws</artifactId>
             <version>${cxf.version}</version>
         </dependency>
         <dependency>
             <groupId>org.apache.cxf</groupId>
             <artifactId>cxf-rt-transports-http</artifactId>
             <version>${cxf.version}</version>
         </dependency>
         <dependency>
             <groupId>org.apache.cxf</groupId>
             <artifactId>cxf-rt-transports-http-jetty</artifactId>
             <version>${cxf.version}</version>
         </dependency>

         <!-- rest风格支持 -->
         <dependency>
             <groupId>org.apache.cxf</groupId>
             <artifactId>cxf-rt-frontend-jaxrs</artifactId>
             <version>${cxf.version}</version>
         </dependency>
         <dependency>
             <groupId>org.apache.cxf</groupId>
             <artifactId>cxf-rt-rs-extension-providers</artifactId>
             <version>${cxf.version}</version>
         </dependency>
         <!-- json支持 -->
         <dependency>
             <groupId>org.codehaus.jettison</groupId>
             <artifactId>jettison</artifactId>
             <version>${jettison.version}</version>
         </dependency>
   </dependencies>

2.配置spring的applicationContext.xml

 <?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:cxf="http://cxf.apache.org/core"
     xsi:schemaLocation="http://www.springframework.org/schema/beans
                         http://www.springframework.org/schema/beans/spring-beans.xsd
                         http://cxf.apache.org/jaxrs http://cxf.apache.org/schemas/jaxrs.xsd
                         http://cxf.apache.org/jaxws http://cxf.apache.org/schemas/jaxws.xsd
                         http://cxf.apache.org/core http://cxf.apache.org/schemas/core.xsd">

     <jaxrs:server address="/studentquery">
         <jaxrs:serviceBeans>
             <ref bean="studentInterface"/>
         </jaxrs:serviceBeans>
     </jaxrs:server>

     <!-- 服务实现类 -->
     <bean id="studentInterface" class="cxf_rest_server.student.StudentInterfaceImpl"/>
 </beans>

3.配置web.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
   <display-name>cxf_rest_spring_server</display-name>
   <welcome-file-list>
     <welcome-file>index.html</welcome-file>
     <welcome-file>index.htm</welcome-file>
     <welcome-file>index.jsp</welcome-file>
     <welcome-file>default.html</welcome-file>
     <welcome-file>default.htm</welcome-file>
     <welcome-file>default.jsp</welcome-file>
   </welcome-file-list>

   <!-- 配置spring文件环境 -->
   <context-param>
       <param-name>contextConfigLocation</param-name>
     <param-value>classpath:applicationContext.xml</param-value>
   </context-param>

   <!-- 监听器 -->
   <listener>
       <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
   </listener>

   <!-- 配置CXF的Servlet -->
   <servlet>
       <servlet-name>CXF</servlet-name>
       <servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class>
   </servlet>
   <servlet-mapping>
       <servlet-name>CXF</servlet-name>
       <url-pattern>/ss/*</url-pattern>
   </servlet-mapping>

 </web-app>

4.代码

实体类

 package cxf_rest_server.student;

 import javax.xml.bind.annotation.XmlRootElement;

 @XmlRootElement(name="student")
 public class Student {
     private int id;
     private String name;
     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;
     }
 }

SEI接口

 package cxf_rest_server.student;

 import java.util.List;

 import javax.jws.WebService;
 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.core.MediaType;

 @WebService
 @Path("/student")
 public interface StudentInterface {
     @POST
     @Path("/query/{id}")
     @Produces({MediaType.APPLICATION_JSON,MediaType.APPLICATION_XML})
     public Student query(@PathParam("id")int id);

     @GET
     @Path("/queryList/{id}/{name}")
     @Produces({MediaType.APPLICATION_XML,MediaType.APPLICATION_JSON})
     public List<Student> queryList(@PathParam("id")int id,@PathParam("name")String name);
 }

实现类

 package cxf_rest_server.student;

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

 public class StudentInterfaceImpl implements StudentInterface {

     @Override
     public Student query(int id) {
         Student student = new Student();
         student.setId(1);
         student.setName("小明");
         return student;
     }

     @Override
     public List<Student> queryList(int id,String name) {
         Student student1 = new Student();
         student1.setId(1);
         student1.setName("小明");

         Student student2 = new Student();
         student2.setId(2);
         student2.setName("小李");

         Student student3 = new Student();
         student3.setId(3);
         student3.setName("小华");
         List<Student> list = new ArrayList<Student>();
         list.add(student1);
         list.add(student2);
         list.add(student3);
         return list;
     }

 }

实体类注意添加@XmlRootElement注解

接口添加jaxrs注解,定义数据格式

5.部署至tomcat后打开浏览器采用以下格式访问

url-pattern:web.xml中定义的cxf的servlet拦截目录

address:applicationContext.xml中的<jaxrs:server>标签定义的address

path:在接口中使用@Path注解设定的值

http://ip:port/项目名/url-pattern/address/path/方法路径/参数

6.由于使用浏览器url的方式只能访问注解为@GET的方法,下面给出使用HttpClient访问服务的简单示例

添加以下依赖

 <properties>
       <httpClient.version>4.5.6</httpClient.version>
       <junit.version>4.9</junit.version>
   </properties>
   <dependencies>
     <dependency>
         <groupId>org.apache.httpcomponents</groupId>
         <artifactId>httpclient</artifactId>
         <version>${httpClient.version}</version>
     </dependency>
     <dependency>
         <groupId>junit</groupId>
         <artifactId>junit</artifactId>
         <version>${junit.version}</version>
         <scope>test</scope>
     </dependency>

   </dependencies>

 package cxf_rest_server.student;

 import org.apache.http.HttpEntity;
 import org.apache.http.client.methods.CloseableHttpResponse;
 import org.apache.http.client.methods.HttpGet;
 import org.apache.http.client.methods.HttpPost;
 import org.apache.http.impl.client.CloseableHttpClient;
 import org.apache.http.impl.client.HttpClients;
 import org.apache.http.util.EntityUtils;
 import org.junit.Test;

 /**
  * 使用httpClient访问服务
  * @author tele
  *
  */
 public class StudentClient {
     @Test
     public void get() throws Exception{
         //创建httpclient对象
         CloseableHttpClient httpClient = HttpClients.createDefault();
         //创建get对象
         HttpGet get = new HttpGet("http://127.0.0.1:8080/cxf_rest_spring_server/ss/studentquery/student/queryList/100/123");
         //执行请求
         CloseableHttpResponse response = httpClient.execute(get);
         int statusCode = response.getStatusLine().getStatusCode();
         if(statusCode == 200){
             HttpEntity entity = response.getEntity();
             String result = EntityUtils.toString(entity,"utf-8");
             System.out.println(result);
         }
         response.close();
         httpClient.close();
     }

     @Test
     public void post() throws Exception {
         CloseableHttpClient httpClient = HttpClients.createDefault();
         HttpPost post = new HttpPost("http://127.0.0.1:8080/cxf_rest_spring_server/ss/studentquery/student/query/100");
         CloseableHttpResponse response = httpClient.execute(post);
         int statusCode = response.getStatusLine().getStatusCode();
         if(statusCode == 200) {
             HttpEntity entity = response.getEntity();
             String result = EntityUtils.toString(entity,"utf-8");
             System.out.println(result);
         }
         response.close();
         httpClient.close();
     }
 }

7.数据的解析

拿到数据后,根据数据格式进行解析,如果是xml,可以使用jdom,dom4j

如果是json........