• 使用 CXF 做 webservice 简单例子(转载)


    使用 CXF 做 webservice 简单例子

     
      Apache CXF 是一个开放源代码框架,提供了用于方便地构建和开发 Web 服务的可靠基础架构。它允许创建高性能和可扩展的服务,您可以将这样的服务部署在 Tomcat 和基于 Spring 的轻量级容器中,以及部署在更高级的服务器上,例如 Jboss、IBM® WebSphere® 或 BEA WebLogic。

     

           该框架提供了以下功能:

    • Web 服务标准支持:CXF 支持以下 Web 服务标准:
      • Java API for XML Web Services (JAX-WS)
      • SOAP
      • Web 服务描述语言(Web Services Description Language ,WSDL)
      • 消息传输优化机制(Message Transmission Optimization Mechanism,MTOM)
      • WS-Basic Profile
      • WS-Addressing
      • WS-Policy
      • WS-ReliableMessaging
      • WS-Security
    • 前端建模:CXF 提供了前端建模的概念,允许您使用不同的前端 API 来创建 Web 服务。API 允许您使用简单的工厂 Bean 并通过 JAX-WAS 实现来创建 Web 服务。它还允许您创建动态 Web 服务客户端。
    • 工具支持:CXF 提供了用于在 Java Bean、Web 服务和 WSDL 之间进行转换的不同工具。它提供了对 Maven 和 Ant 集成的支持,并无缝地支持 Spring 集成。
    • RESTful 服务支持:CXF 支持代表性状态传输(Representational State Transfer,RESTful )服务的概念,并支持 Java 平台的 JAX-RS 实现。(本系列的第 2 部分将提供有关 RESTful 服务的更多信息。)
    • 对不同传输和绑定的支持:CXF 支持不同种类的传输,从 XML 到逗号分隔值 (CSV)。除了支持 SOAP 和 HTTP 协议绑定之外,它还支持 Java Architecture for XML Binding (JAXB) 和 AEGIS 数据绑定。
    • 对非 XML 绑定的支持:CXF 支持非 XML 绑定,例如 JavaScript Object Notation (JSON) 和 Common Object Request Broker Architecture (CORBA)。它还支持 Java 业务集成(Java Business Integration,JBI)体系架构和服务组件体系架构(Service Component Architecture,SCA)。
    • code first 或者 xml first  : 支持使用code first 或者 xml first 的方式来创建web服务。

           一  借助 annotation 创建独立启动的web 服务。

     

           准备: 新建工程 导入需要的jar 包:

                      

                      依赖的包:

                                commons-logging-1.1.jar
                                geronimo-activation_1.1_spec-1.0-M1.jar (or Sun's Activation jar)
                                geronimo-annotation_1.0_spec-1.1.jar (JSR 250)
                                geronimo-javamail_1.4_spec-1.0-M1.jar (or Sun's JavaMail jar)
                                geronimo-servlet_2.5_spec-1.1-M1.jar (or Sun's Servlet jar)
                                geronimo-ws-metadata_2.0_spec-1.1.1.jar (JSR 181)
                                jaxb-api-2.1.jar
                                jaxb-impl-2.1.6.jar
                                jaxws-api-2.1.jar
                                jetty-6.1.5.jar
                                jetty-util-6.1.5.jar
                                neethi-2.0.jar
                                saaj-api-1.3.jar
                                saaj-impl-1.3.jar
                                stax-api-1.0.1.jar
                                wsdl4j-1.6.1.jar
                                wstx-asl-3.2.1.jar
                                XmlSchema-1.2.jar
                                xml-resolver-1.2.jar     

     

                      spring jar 包, 用来支持xml配置:

                                aopalliance-1.0.jar
                                spring-core-2.0.4.jar
                                spring-beans-2.0.4.jar
                                spring-context-2.0.4.jar
                                spring-web-2.0.4.jar

                      

                       CXF jar包:

                                cxf-2.1.jar

       

             以上jar 包 可从apache官方网站下载 apache-cxf-2.1.2.zip, 然后从apache-cxf-2.1.2/lib 目录中获得

     

          1  首先服务点接口。

              package com.demo;

     

              import java.util.List;

              import javax.jws.WebParam;
              import javax.jws.WebService;
             

              @WebService
              public interface HelloWorld {
                   String sayHi(@WebParam(name="text")String text);
                   String sayHiToUser(User user);
                   String[] SayHiToUserList(List<User> userList);
               }

     

         2  编写服务实现

             package com.demo;

             import java.util.LinkedHashMap;
             import java.util.List;
             import java.util.Map;

             import javax.jws.WebService;

     

             @WebService(endpointInterface="com.demo.HelloWorld",serviceName="HelloWorld")
             public class HelloWorldImpl implements HelloWorld {
     
                        Map<Integer, User> users = new LinkedHashMap<Integer, User>();

     
                        public String sayHi(String text) {
                                    return "Hello " + text;
                       }

     

                       public String sayHiToUser(User user) {
                                 users.put(users.size()+1, user);
                                 return "Hello "+ user.getName();
                       }

                       public String[] SayHiToUserList(List<User> userList) {
                                 String[] result = new String[userList.size()];
                                 int i=0;
                                 for(User u:userList){
                                      result[i] = "Hello " + u.getName();
                                      i++;
                                 }
                         return result;
                       }
           }

     

      3  编写 webServiceApp.java类来暴露 web服务。

          package com.demo;

          import javax.xml.ws.Endpoint;

     

          public class webServiceApp {
                     public static void main(String[] args) {
                               System.out.println("web service start");
                               HelloWorldImpl implementor= new HelloWorldImpl();
                               String address="
    http://localhost:8080/helloWorld";
                               Endpoint.publish(address, implementor);
                               System.out.println("web service started");
                      }
          }

     

     4  run webServiceApp.java 类来启动服务。 访问 http://localhost:8080/helloWorld?wsdl  查看是否显示

         wsdl。

      

     5  编写客户端访问服务。

         package com.demo;

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

         import org.apache.cxf.jaxws.JaxWsProxyFactoryBean;
         import org.springframework.context.support.ClassPathXmlApplicationContext;

     

         public class HelloWorldClient {
                  public static void main(String[] args) {
                            JaxWsProxyFactoryBean svr = new JaxWsProxyFactoryBean();
                            svr.setServiceClass(HelloWorld.class);
                            svr.setAddress("
    http://localhost:8080/helloWorld");
                            HelloWorld hw = (HelloWorld) svr.create();
                            User user = new User();
                            user.setName("Tony");
                            user.setDescription("test");
                            System.out.println(hw.sayHiToUser(user));
                  }
         }

     

     

     

      6  测试: run webServiceApp.java 类来启动服务,然后 run HelloWorldClient.java 来访问服务。

     

      二 集成到spring 中。

      

      1 在 web.xml 中加入 :

     

           <?xml version="1.0" encoding="UTF-8"?>
           <web-app>
                    <welcome-file-list>
                             <welcome-file>index.jsp</welcome-file>
                    </welcome-file-list>


                    <context-param>
                              <param-name>contextConfigLocation</param-name>
                              <param-value>WEB-INF/classes/applicationContext.xml</param-value>
                     </context-param>
     
                  <listener>
                          <listener-class>
                                  org.springframework.web.context.ContextLoaderListener
                          </listener-class>
                  </listener>

     

                  <servlet>
                         <servlet-name>CXFServlet</servlet-name>
                         <display-name>CXFServlet</display-name>
                         <servlet-class>
                                org.apache.cxf.transport.servlet.CXFServlet
                         </servlet-class>
                         <load-on-startup>1</load-on-startup>
                   </servlet>

                   <servlet-mapping>
                          <servlet-name>CXFServlet</servlet-name>
                          <url-pattern>/webservice/*</url-pattern>
                   </servlet-mapping>
             </web-app>

     

    2  在 applicationContext.xml 中加入:

        <?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"
                     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">
     
                    <import resource="classpath:META-INF/cxf/cxf.xml"/>
                    <import resource="classpath:META-INF/cxf/cxf-extension-soap.xml"/>
                    <import resource="classpath:META-INF/cxf/cxf-servlet.xml"/>
     
                     <jaxws:endpoint 
                                  id="helloWorld"
                                  implementor="com.demo.HelloWorldImpl"
                                  address="/helloWorld" />
       
                    <bean id="client" class="com.demo.HelloWorld" 
                               factory-bean="clientFactory" factory-method="create"/>
        
                     <bean id="clientFactory" class="org.apache.cxf.jaxws.JaxWsProxyFactoryBean">
                                <property name="serviceClass" value="com.demo.HelloWorld"/>
                                <property name="address"

                                                  value="http://localhost:8080/s/webservice/helloWorld"/>
                      </bean>
         </beans>

     

        注意: 这里需要加入  xmlns:jaxws="http://cxf.apache.org/jaxws"   

                  http://cxf.apache.org/jaxws http://cxf.apache.org/schemas/jaxws.xsd

     

      3  修改客户端。

          package com.demo;

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

         import org.apache.cxf.jaxws.JaxWsProxyFactoryBean;
         import org.springframework.context.support.ClassPathXmlApplicationContext;

     

         public class HelloWorldClient {
                  public static void main(String[] args) {
                        
        HelloWorld client = (HelloWorld)context.getBean("client");
                            User user1 = new User();
                            user1.setName("Tony");
                            user1.setDescription("test");
                            User user2 = new User();
                            user2.setName("freeman");
                            user2.setDescription("test");
                            List<User> userList= new ArrayList<User>();
                            userList.add(user1);
                            userList.add(user2);
                            String[] res = client.SayHiToUserList(userList);
                            System.out.println(res[0]);
                            System.out.println(res[1]);          

                  }
         }

     

      4  发布工程 启动web服务器(我用 tomcat 6)。

     

      5 访问 http://localhost:8080/s/webservice/helloWorld?wsdl  查看是否显示 wsdl 。

     

      6  run run HelloWorldClient.java 来访问服务。
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  • 原文地址:https://www.cnblogs.com/frankly-frank/p/3519069.html
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