WebService CXF学习（入门篇2）：HelloWorld

理论联系实际，单单只讲理论那就成了纸上谈兵，用一个HelloWorld Demo可来说明事更加直观。那下面咱们就开始进行讲解：
   首先到apache官方网下载apache-cxf-2.2.2,地址：http://cxf.apache.org/
   新建一个Java Project,导入cxf常用.jar包
Java代码 
commons-logging-1.1.1.jar  
geronimo-activation_1.1_spec-1.0.2.jar (or Sun's Activation jar)  
geronimo-annotation_1.0_spec-1.1.1.jar (JSR 250)  
geronimo-javamail_1.4_spec-1.6.jar (or Sun's JavaMail jar)  
geronimo-servlet_2.5_spec-1.2.jar (or Sun's Servlet jar)  
geronimo-ws-metadata_2.0_spec-1.1.2.jar (JSR 181)  
geronimo-jaxws_2.1_spec-1.0.jar (or Sun's jaxws-api-2.1.jar)  
geronimo-stax-api_1.0_spec-1.0.1.jar (or other stax-api jar)  
jaxb-api-2.1.jar  
jaxb-impl-2.1.12.jar  
jetty-6.1.21.jar  
jetty-util-6.1.21.jar  
neethi-2.0.4.jar  
saaj-api-1.3.jar  
saaj-impl-1.3.2.jar  
wsdl4j-1.6.2.jar  
wstx-asl-3.2.8.jar  
XmlSchema-1.4.5.jar  
xml-resolver-1.2.jar  
cxf-2.2.2.jar 

   commons-logging-1.1.1.jar
   geronimo-activation_1.1_spec-1.0.2.jar (or Sun's Activation jar)
   geronimo-annotation_1.0_spec-1.1.1.jar (JSR 250)
   geronimo-javamail_1.4_spec-1.6.jar (or Sun's JavaMail jar)
   geronimo-servlet_2.5_spec-1.2.jar (or Sun's Servlet jar)
   geronimo-ws-metadata_2.0_spec-1.1.2.jar (JSR 181)
   geronimo-jaxws_2.1_spec-1.0.jar (or Sun's jaxws-api-2.1.jar)
   geronimo-stax-api_1.0_spec-1.0.1.jar (or other stax-api jar)
   jaxb-api-2.1.jar
   jaxb-impl-2.1.12.jar
   jetty-6.1.21.jar
   jetty-util-6.1.21.jar
   neethi-2.0.4.jar
   saaj-api-1.3.jar
   saaj-impl-1.3.2.jar
   wsdl4j-1.6.2.jar
   wstx-asl-3.2.8.jar
   XmlSchema-1.4.5.jar
   xml-resolver-1.2.jar
   cxf-2.2.2.jar

   接下就是HelloWorld Demo开发了
   第一步：新建一个webservice接口
Java代码 

@WebService  
public interface IHelloWorld {   
    //@WebParam给参数命名，提高可代码可读性。此项可选   
blic String sayHi(@WebParam(name="text") String text);   
}  

   @WebService
   public interface IHelloWorld {
       //@WebParam给参数命名，提高可代码可读性。此项可选
	public String sayHi(@WebParam(name="text") String text);
   }

  通过注解@WebService申明为webservice接口
   第二步，实现WebService接口
Java代码 

  @WebService  
  public class HelloWorldImpl implements IHelloWorld {   
  
public String sayHi(String name) {   
    System.out.println("sayHello is called by " + name);   
    return "Hello " + name;   
}   
  
   }  

   @WebService
   public class HelloWorldImpl implements IHelloWorld {

	public String sayHi(String name) {
		System.out.println("sayHello is called by " + name);
		return "Hello " + name;
	}

    }

  第三步，创建服务端
Java代码 
 

public class Server {   
  
private Server(){   
    IHelloWorld helloWorld = new HelloWorldImpl();   
    //创建WebService服务工厂   
    JaxWsServerFactoryBean factory = new JaxWsServerFactoryBean();   
    //注册WebService接口   
    factory.setServiceClass(IHelloWorld.class);   
    //发布接口   
    factory.setAddress("http://localhost:9000/HelloWorld");   
    factory.setServiceBean(helloWorld);   
    //创建WebService   
    factory.create();   
};   
  
public static void main(String[] args) throws InterruptedException{   
       //启动服务端   
              new Server();   
    System.out.println("Server ready...");   
    //休眠一分钟，便于测试   
               Thread.sleep(1000*60);   
    System.out.println("Server exit...");   
    System.exit(0);   
}   
   }  

   public class Server {

	private Server(){
		IHelloWorld helloWorld = new HelloWorldImpl();
		//创建WebService服务工厂
		JaxWsServerFactoryBean factory = new JaxWsServerFactoryBean();
		//注册WebService接口
		factory.setServiceClass(IHelloWorld.class);
		//发布接口
		factory.setAddress("http://localhost:9000/HelloWorld");
		factory.setServiceBean(helloWorld);
		//创建WebService
		factory.create();
	};
	
	public static void main(String[] args) throws InterruptedException{
	       //启动服务端
               new Server();
		System.out.println("Server ready...");
		//休眠一分钟，便于测试
                Thread.sleep(1000*60);
		System.out.println("Server exit...");
		System.exit(0);
	}
    }

 

第四步，创建客户端
   Java代码 
  

public class Client {   
  
private Client(){};   
  
public static void main(String[] args){   
    //创建WebService客户端代理工厂   
    JaxWsProxyFactoryBean factory = new JaxWsProxyFactoryBean();   
    //注册WebService接口   
    factory.setServiceClass(HelloWorld.class);   
    //设置WebService地址   
    factory.setAddress("http://localhost:9000/HelloWorld");        
    IHelloWorld iHelloWorld = (IHelloWorld)factory.create();   
    System.out.println("invoke webservice...");   
    System.out.println("message context is:"+iHelloWorld.sayHi("     
                 Josen"));   
    System.exit(0);   
}   
   }   
    

    public class Client {

	private Client(){};
	
	public static void main(String[] args){
		//创建WebService客户端代理工厂
		JaxWsProxyFactoryBean factory = new JaxWsProxyFactoryBean();
		//注册WebService接口
		factory.setServiceClass(HelloWorld.class);
		//设置WebService地址
		factory.setAddress("http://localhost:9000/HelloWorld");		
		IHelloWorld iHelloWorld = (IHelloWorld)factory.create();
		System.out.println("invoke webservice...");
		System.out.println("message context is:"+iHelloWorld.sayHi("  
                  Josen"));
		System.exit(0);
	}
    }
   

   最后是万事俱备，只欠测试了
    首先，运行服务端程序
    其次，打开浏览器，在地址栏中输入http://localhost:9000/HelloWorld?wsdl（因为cxf自带了一个jetty服务器），查看接口是否发布成功,如里浏览器页面显示下面内容，证明接口发布成功
Java代码 

  <wsdl:definitions name="IHelloWorldService" targetNamespace="http://client.itdcl.com/">   
<wsdl:types>   
<xsd:schema attributeFormDefault="unqualified" elementFormDefault="unqualified" targetNamespace="http://client.itdcl.com/">   
<xsd:element name="sayHi" type="tns:sayHi"/>   
<xsd:complexType name="sayHi">   
<xsd:sequence>   
<xsd:element minOccurs="0" name="text" type="xsd:string"/>   
</xsd:sequence>   
</xsd:complexType>   
<xsd:element name="sayHiResponse" type="tns:sayHiResponse"/>   
<xsd:complexType name="sayHiResponse">   
<xsd:sequence>   
<xsd:element minOccurs="0" name="return" type="xsd:string"/>   
</xsd:sequence>   
</xsd:complexType>   
</xsd:schema>   
</wsdl:types>   
<wsdl:message name="sayHi">   
<wsdl:part element="tns:sayHi" name="parameters">   
    </wsdl:part>   
</wsdl:message>   
<wsdl:message name="sayHiResponse">   
<wsdl:part element="tns:sayHiResponse" name="parameters">   
    </wsdl:part>   
</wsdl:message>   
<wsdl:portType name="IHelloWorld">   
<wsdl:operation name="sayHi">   
<wsdl:input message="tns:sayHi" name="sayHi">   
    </wsdl:input>   
<wsdl:output message="tns:sayHiResponse" name="sayHiResponse">   
    </wsdl:output>   
</wsdl:operation>   
</wsdl:portType>   
<wsdl:binding name="IHelloWorldServiceSoapBinding" type="tns:IHelloWorld">   
<soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>   
<wsdl:operation name="sayHi">   
<soap:operation soapAction="" style="document"/>   
<wsdl:input name="sayHi">   
<soap:body use="literal"/>   
</wsdl:input>   
<wsdl:output name="sayHiResponse">   
<soap:body use="literal"/>   
</wsdl:output>   
</wsdl:operation>   
</wsdl:binding>   
<wsdl:service name="IHelloWorldService">   
<wsdl:port binding="tns:IHelloWorldServiceSoapBinding" name="IHelloWorldPort">   
<soap:address location="http://localhost:9000/HelloWorld"/>   
</wsdl:port>   
</wsdl:service>   
</wsdl:definitions>  

   <wsdl:definitions name="IHelloWorldService" targetNamespace="http://client.itdcl.com/">
<wsdl:types>
<xsd:schema attributeFormDefault="unqualified" elementFormDefault="unqualified" targetNamespace="http://client.itdcl.com/">
<xsd:element name="sayHi" type="tns:sayHi"/>
<xsd:complexType name="sayHi">
<xsd:sequence>
<xsd:element minOccurs="0" name="text" type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
<xsd:element name="sayHiResponse" type="tns:sayHiResponse"/>
<xsd:complexType name="sayHiResponse">
<xsd:sequence>
<xsd:element minOccurs="0" name="return" type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
</xsd:schema>
</wsdl:types>
<wsdl:message name="sayHi">
<wsdl:part element="tns:sayHi" name="parameters">
    </wsdl:part>
</wsdl:message>
<wsdl:message name="sayHiResponse">
<wsdl:part element="tns:sayHiResponse" name="parameters">
    </wsdl:part>
</wsdl:message>
<wsdl:portType name="IHelloWorld">
<wsdl:operation name="sayHi">
<wsdl:input message="tns:sayHi" name="sayHi">
    </wsdl:input>
<wsdl:output message="tns:sayHiResponse" name="sayHiResponse">
    </wsdl:output>
</wsdl:operation>
</wsdl:portType>
<wsdl:binding name="IHelloWorldServiceSoapBinding" type="tns:IHelloWorld">
<soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
<wsdl:operation name="sayHi">
<soap:operation soapAction="" style="document"/>
<wsdl:input name="sayHi">
<soap:body use="literal"/>
</wsdl:input>
<wsdl:output name="sayHiResponse">
<soap:body use="literal"/>
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:service name="IHelloWorldService">
<wsdl:port binding="tns:IHelloWorldServiceSoapBinding" name="IHelloWorldPort">
<soap:address location="http://localhost:9000/HelloWorld"/>
</wsdl:port>
</wsdl:service>
</wsdl:definitions>

    最后，运行客户端程序，看看效果如果。
    这一节就讲到此为止，下节对WSDL定义进行讲解，便于对上面这个Demo进行很好的消化，同时对后面章节启个辅塾作用。