1.apache网站下载CXF
http://cxf.apache.org/download.html
最新版本2.4.1
2.创建一个java工程,将以下jar包复制到工程的classpath下
所有的jar包都可以在${CXF_HOME}\lib目录中找到
3.定义服务接口HelloWorldService
因为这个接口将会被我们暴露为webservice,所以给该接口加一个@WebService标注
- package com.crazycoder2010.webservice.cxf.server;
- import javax.jws.WebParam;
- import javax.jws.WebService;
- /**
- * 服务器端对外提供的服务
- * @author Kevin_Wang03
- *
- */
- @WebService
- public interface HelloWorldService {
- /**
- * 简单的字符串参数
- * @param userName
- * @return
- */
- public String sayHello(@WebParam(name="userName") String userName);
- /**
- * 参数为对象的情况
- * @param user
- * @return
- */
- public String sayHelloToUser(User user);
- }
这个实现类实现了我们上面的服务接口,除了要添加@WebService标注外,还要定义该服务的名称serviceName="helloWorldService" 和endpoint(服务接口),其他和普通类没有任何区别
- package com.crazycoder2010.webservice.cxf.server;
- import javax.jws.WebService;
- /**
- * 默认的webservice实现
- *
- * @author Kevin_Wang03
- *
- */
- @WebService(endpointInterface = "com.crazycoder2010.webservice.cxf.server.HelloWorldService", serviceName = "helloWorldService")
- public class HelloWorldServiceImpl implements HelloWorldService {
- @Override
- public String sayHello(String userName) {
- System.out.println("HelloWorldServiceImpl.sayHello("+userName+")");
- return "Hello,"+userName;
- }
- @Override
- public String sayHelloToUser(User user) {
- System.out.println("HelloWorldServiceImpl.sayHelloToUser("+user+")");
- return "Hello,("+user.getId()+","+user.getName()+")";
- }
- }
这个是个普通类,要发布一个webservice,首先要定义好这个webservice的访问地址和端口,然后需要知道把哪个类发布成服务,就这么简单?yes!
- package com.crazycoder2010.webservice.cxf.server;
- import javax.xml.ws.Endpoint;
- public class Server {
- public static void main(String[] args) {
- System.out.println("Starting Server");
- HelloWorldServiceImpl helloWorldServiceImpl = new HelloWorldServiceImpl();
- String address = "http://localhost:9000/helloWorldService";
- Endpoint.publish(address, helloWorldServiceImpl);
- System.out.println("Start success");
- }
- }
- Starting Server
- Aug 9, 2011 5:27:29 PM org.apache.cxf.service.factory.ReflectionServiceFactoryBean buildServiceFromClass
- INFO: Creating Service {http://server.cxf.webservice.crazycoder2010.com/}helloWorldService from class com.crazycoder2010.webservice.cxf.server.HelloWorldService
- Aug 9, 2011 5:27:29 PM org.apache.cxf.endpoint.ServerImpl initDestination
- INFO: Setting the server's publish address to be http://localhost:9000/helloWorldService
- 2011-08-09 17:27:29.895:INFO::jetty-7.4.2.v20110526
- Start success
http://localhost:9000/helloWorldService?wsdl
分析输出的wsdl文件
6.1<wsdl:definitions name="helloWorldService" >
这个name就是我们在HelloWorldServiceImpl类的标注serviceName="helloWorldService"生成的
6.2<wsdl:definitions targetNamespace="http://server.cxf.webservice.crazycoder2010.com/">
注意到我们的代码位于com.crazycoder2010.webservice.cxf.server中,记得sun推荐的包的命名标准吗?就是公司域名翻转加上项目名,那把包名翻过来是什么?-你懂得,CXF就用了这种机制
6.3<xs:complexType name="sayHello">
这个即是我们定义在服务接口中的方法,在wsdl文件中将接口中的方法定义成服务方法,里面的子元素定义了该方法的参数
6.4<xs:complexType name="sayHelloResponse">
这个是对接口服务方法返回值的描述,默认遵循以下约定对方法的描述为sayHello,则返回值的描述为sayHelloResponse
6.5<wsdl:message name="sayHelloToUser">
这个描述把服务和方法绑定起来,与Response是成对出现的
6.6<soap:address location="http://localhost:9000/helloWorldService"/>
这里就是我们上面在代码里完成的服务的访问地址
- <?xml version="1.0" ?><wsdl:definitions name="helloWorldService" targetNamespace="http://server.cxf.webservice.crazycoder2010.com/" xmlns:ns1="http://schemas.xmlsoap.org/soap/http" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tns="http://server.cxf.webservice.crazycoder2010.com/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
- <wsdl:types>
- <xs:schema attributeFormDefault="unqualified" elementFormDefault="unqualified" targetNamespace="http://server.cxf.webservice.crazycoder2010.com/" xmlns="http://server.cxf.webservice.crazycoder2010.com/" xmlns:xs="http://www.w3.org/2001/XMLSchema">
- <xs:complexType name="user">
- <xs:sequence>
- <xs:element name="id" type="xs:int"></xs:element>
- <xs:element minOccurs="0" name="name" type="xs:string"></xs:element>
- </xs:sequence>
- </xs:complexType>
- <xs:element name="sayHelloToUser" type="sayHelloToUser"></xs:element>
- <xs:complexType name="sayHelloToUser">
- <xs:sequence>
- <xs:element minOccurs="0" name="arg0" type="user"></xs:element>
- </xs:sequence>
- </xs:complexType>
- <xs:element name="sayHelloToUserResponse" type="sayHelloToUserResponse"></xs:element>
- <xs:complexType name="sayHelloToUserResponse">
- <xs:sequence>
- <xs:element minOccurs="0" name="return" type="xs:string"></xs:element>
- </xs:sequence>
- </xs:complexType>
- <xs:element name="sayHello" type="sayHello"></xs:element>
- <xs:complexType name="sayHello">
- <xs:sequence>
- <xs:element minOccurs="0" name="userName" type="xs:string"></xs:element>
- </xs:sequence>
- </xs:complexType>
- <xs:element name="sayHelloResponse" type="sayHelloResponse"></xs:element>
- <xs:complexType name="sayHelloResponse">
- <xs:sequence>
- <xs:element minOccurs="0" name="return" type="xs:string"></xs:element>
- </xs:sequence>
- </xs:complexType>
- </xs:schema>
- </wsdl:types>
- <wsdl:message name="sayHelloToUser">
- <wsdl:part element="tns:sayHelloToUser" name="parameters">
- </wsdl:part>
- </wsdl:message>
- <wsdl:message name="sayHelloToUserResponse">
- <wsdl:part element="tns:sayHelloToUserResponse" name="parameters">
- </wsdl:part>
- </wsdl:message>
- <wsdl:message name="sayHelloResponse">
- <wsdl:part element="tns:sayHelloResponse" name="parameters">
- </wsdl:part>
- </wsdl:message>
- <wsdl:message name="sayHello">
- <wsdl:part element="tns:sayHello" name="parameters">
- </wsdl:part>
- </wsdl:message>
- <wsdl:portType name="HelloWorldService">
- <wsdl:operation name="sayHelloToUser">
- <wsdl:input message="tns:sayHelloToUser" name="sayHelloToUser">
- </wsdl:input>
- <wsdl:output message="tns:sayHelloToUserResponse" name="sayHelloToUserResponse">
- </wsdl:output>
- </wsdl:operation>
- <wsdl:operation name="sayHello">
- <wsdl:input message="tns:sayHello" name="sayHello">
- </wsdl:input>
- <wsdl:output message="tns:sayHelloResponse" name="sayHelloResponse">
- </wsdl:output>
- </wsdl:operation>
- </wsdl:portType>
- <wsdl:binding name="helloWorldServiceSoapBinding" type="tns:HelloWorldService">
- <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"></soap:binding>
- <wsdl:operation name="sayHelloToUser">
- <soap:operation soapAction="" style="document"></soap:operation>
- <wsdl:input name="sayHelloToUser">
- <soap:body use="literal"></soap:body>
- </wsdl:input>
- <wsdl:output name="sayHelloToUserResponse">
- <soap:body use="literal"></soap:body>
- </wsdl:output>
- </wsdl:operation>
- <wsdl:operation name="sayHello">
- <soap:operation soapAction="" style="document"></soap:operation>
- <wsdl:input name="sayHello">
- <soap:body use="literal"></soap:body>
- </wsdl:input>
- <wsdl:output name="sayHelloResponse">
- <soap:body use="literal"></soap:body>
- </wsdl:output>
- </wsdl:operation>
- </wsdl:binding>
- <wsdl:service name="helloWorldService">
- <wsdl:port binding="tns:helloWorldServiceSoapBinding" name="HelloWorldServiceImplPort">
- <soap:address location="http://localhost:9000/helloWorldService"></soap:address>
- </wsdl:port>
- </wsdl:service>
- </wsdl:definitions>
HelloWorld 是跑起来了,感觉比先前用的JAX-RPC要简单的多了,几分钟就可以搞定一个webservice--也许这就是框架的魅力,但是也有一些疑问,如要运行这么小一个helloWorld,要依赖20几个jar包,其中还有Jetty的jar包若干!竟然还有org.eclipse.jetty.*这种包,不知道设计这个框架的同学是怎么考虑的,为什么要把webservice和jetty或eclipse扯上关系,可能看的不够深,明天继续研究。