创建第一个WebService程序

创建第一个WebService程序
   1.首先创建实现类IMyService
	package org.aa;
	import javax.jws.WebService;

	/*SEI(Service EndPoint Interface)
	 *SIB(Service Implemention Bean)
	 *在这个例子中IMyService就是SEI，即服务实现的接口，MyServiceImpl就是SIB，即服务实现的Bean 
	 * */

	@WebService()
	public interface IMyService {
		//相加接口
		public int add(int a,int b);
		
		//相减接口
		public int minus(int a,int b);
	}

   2.创建IMyService接口的实现类MyServiceImpl
	package org.aa;

	import javax.jws.WebService;

	//配置好我的接口
	@WebService(endpointInterface="org.aa.IMyService")
	//实现IMyService接口
	public class MyServiceImpl implements IMyService {

		@Override
		public int add(int a,int b) {
			System.out.println(a + "+" + b + "=" + (a+b));
			return a+b;
		}

		@Override
		public int minus(int a,int b) {
			System.out.println(a + "-" + b + "=" + (a-b));
			return a-b;
		}

	}
   3.创建WebService服务MyService
	package org.aa;

	import javax.xml.ws.Endpoint;

	public class MyServer {
		public static void main(String[] args){
			//首先确定一个在网上发布的地址
			String address = "http://localhost:8888/ns";
			//发布一下,两个参数，前一个是在网上发布的地址，后一个为要发布接口的实现类
			Endpoint.publish(address,new MyServiceImpl());
		}
	}
   4.出现了这个错误
   Exception in thread "main" com.sun.xml.internal.ws.model.RuntimeModelerException: runtime modeler error: Wrapper class org.aa.jaxws.Add is not found. Have you run APT to generate them?
	at com.sun.xml.internal.ws.model.RuntimeModeler.getClass(RuntimeModeler.java:256)
	at com.sun.xml.internal.ws.model.RuntimeModeler.processDocWrappedMethod(RuntimeModeler.java:567)
	at com.sun.xml.internal.ws.model.RuntimeModeler.processMethod(RuntimeModeler.java:514)
	at com.sun.xml.internal.ws.model.RuntimeModeler.processClass(RuntimeModeler.java:341)
	at com.sun.xml.internal.ws.model.RuntimeModeler.buildRuntimeModel(RuntimeModeler.java:227)
	at com.sun.xml.internal.ws.server.EndpointFactory.createSEIModel(EndpointFactory.java:308)
	at com.sun.xml.internal.ws.server.EndpointFactory.createEndpoint(EndpointFactory.java:174)
	at com.sun.xml.internal.ws.api.server.WSEndpoint.create(WSEndpoint.java:420)
	at com.sun.xml.internal.ws.api.server.WSEndpoint.create(WSEndpoint.java:439)
	at com.sun.xml.internal.ws.transport.http.server.EndpointImpl.createEndpoint(EndpointImpl.java:208)
	at com.sun.xml.internal.ws.transport.http.server.EndpointImpl.publish(EndpointImpl.java:138)
	at com.sun.xml.internal.ws.spi.ProviderImpl.createAndPublishEndpoint(ProviderImpl.java:92)
	at javax.xml.ws.Endpoint.publish(Endpoint.java:170)
	at org.aa.MyServer.main(MyServer.java:10)
	原因：JDK1.6早起版本对这个类型的支持有bug，所以报错。
	解决办法：只要将JDK升级到1.6.0_22（包括这个版本）以后，再设置一下MyEclipse默认的jdk就解决问题了，其他的办法不           好解决。
   5.创建一个类TestClient调用WebService提供的服务(必须注意测试运行TestClient时必须把MyService服务运行起来)
	package org.aa;

	import java.net.MalformedURLException;
	import java.net.URL;

	import javax.xml.namespace.QName;
	import javax.xml.ws.Service;

	public class TestClient {
		public static void main(String[] args){
			try {
				URL url = new URL("http://localhost:8888/ns?wsdl");
				//new QName两个参数，第一个是目标命名空间即targetNamespace="http://aa.org/"中的http://aa.org/
				//另一个是本地WebService提供的名称即name="MyServiceImplService"中的MyServiceImplService
				QName sname = new QName("http://aa.org/","MyServiceImplService");
				//创建Service服务
				Service service = Service.create(url,sname);
				//得到IMyService接口
				IMyService ms = service.getPort(IMyService.class);
				System.out.println(ms.add(1,2));
			} catch (MalformedURLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}