详解怎样使用Axis开发Web Service的实例

Axis安装 1、环境 J2SE SDK 1.3 or 1.4: 我使用 1.4.2 Servlet Container: 我使用的Tomcat 5.0

2、到 http://ws.apache.org/Axis/网站下载Axis安装包

3、解压缩安装包，将Axis_UNZIP_PATH\Axis-version\webapps下的Axis包拷贝到TOMCAT_HOME\webapps\下，以下约定Axis_HOME为该TOMCAT_HOME\webapps\Axis目录

4、启动tomcat,访问http://localhost:8080/Axis 检查安装是否成功

5、以上步骤执行成功，可以开发webservice例子了

Axis支持三种web service的部署和开发，分别为：

1、Dynamic Invocation Interface ( DII)

2、Stubs方式

3、Dynamic Proxy方式

二、编写DII(Dynamic Invocation Interface )方式web服务

1.编写服务端程序HelloClient

public class HelloClient{
    public String getName(String name);    {        return "hello "+name;    
}
}

2、将源码拷贝到Axis_HOME下，重命名为 HelloClient.jws

3、访问连接http://localhost:8080/Axis/HelloClient.jws?wsdl，页面显示Axis自动生成的wsdl

4、编写访问服务的客户端 TestHelloClient.java

import org.apache.Axis.client.Call;import org.apache.Axis.client.Service;import javax.xml.namespace.QName;import javax.xml.rpc.ServiceException;import java.net.MalformedURLException;import java.rmi.RemoteException;public class SayHelloClient2{
    public static void main(String[] args);{
        try{
           String endpoint =  "http://localhost:8080/Axis/HelloClient.jws"; 
   Service service = new Service();; 
           Call call = null; 
           call = (Call); service.createCall();;            call.setOperationName(new QName(               "http://localhost:8080/Axis/HelloClient.jws",    "getName"););;
            call.setTargetEndpointAddress(new java.net.URL(endpoint););; 
           String ret = (String); call.invoke(new Object[] {"zhangsan"});; 
           System.out.println("return value is " + ret);;
        } catch (Exception ex);{
       ex.printStackTrace();;
        }
    }
}

三、编写Dynamic Proxy方式访问服务

1、编写部署服务端程序，同上边DII方式，本次仍使用上边部署的HelloClient

2、编写代理接口

public interface HelloClientInterfaceextends java.rmi.Remote{
    public String getName(String name);throws java.rmi.RemoteException;
}

3、编写并执行客户端程序TestHelloClient.java

import javax.xml.rpc.Service;import javax.xml.rpc.ServiceFactory;import java.net.URL;import javax.xml.namespace.QName;public class TestHelloClient {    public static void main(String[] args);{
        try 
       { 
           String wsdlUrl = "http://localhost:8080/Axis/HelloClient.jws?wsdl";
            String nameSpaceUri = "http://localhost:8080/Axis/HelloClient.jws";
            String serviceName = "HelloClientService";
            String portName = "HelloClient";
            ServiceFactory serviceFactory = ServiceFactory.newInstance();;
            Service afService =serviceFactory.createService(new URL(wsdlUrl);,         new QName(nameSpaceUri, serviceName););;            HelloClientInterface proxy = (HelloClientInterface);        afService.getPort(new QName(                    nameSpaceUri, portName);, HelloClientInterface.class);;            System.out.println("return value is "+proxy.getName("john"); ); ;
        }catch(Exception ex);        {
            ex.printStackTrace(); ;
        }
    }
}

四、编写wsdd发布web服务，编写stub client访问web服务

1、编写服务端程序server,SayHello.java，编译server.SayHello.java

package server;public class SayHello{    public String getName(String name);    {        return "hello "+name;    }}2.编写LogHandler.javaimport org.apache.Axis.AxisFault;import org.apache.Axis.Handler;import org.apache.Axis.MessageContext;import org.apache.Axis.handlers.BasicHandler;import java.util.Date;public class LogHandler extends BasicHandler { public void invoke(MessageContext msgContext); throws AxisFault    {        /** Log an access each time we get invoked.         */        try {            Handler serviceHandler= msgContext.getService();;            Integer numAccesses =  (Integer);serviceHandler.getOption("accesses");;            if (numAccesses == null);                numAccesses = new Integer(0);;numAccesses = new Integer(numAccesses.intValue();  1);;Date date = new Date();; String result =  date  ": service " msgContext.getTargetService(); " accessed "  numAccesses  " time(s);.";serviceHandler.setOption("accesses", numAccesses);;System.out.println(result);;        } catch (Exception e);{            throw AxisFault.makeFault(e);;        }    }}

3、编写wsdd文件

deploy.wsdd"http://xml.apache.org/Axis/wsdd/"  xmlns:java="http://xml.apache.org/Axis/wsdd/providers/java">                 provider="java:RPC">               value="server.SayHello"/>    value="*"/>   

3、将编译后的文件拷贝到Axis_HOME/WEB-INF/classes下，如：

D:\tomcat\webapps\Axis\WEB-INF\classes 

4、发布服务：

java org.apache.Axis.client.AdminClient deploy.wsdd 

5、生成client stub文件

a:方式1

将SayHello.java拷贝到Axis_HOME/下，重命名为SayHello.jws，

执行下面的命令生存client stub

java org.apache.Axis.wsdl.WSDL2Java -p client  http://localhost:8080/Axis/services/SayHello.jws?wsdl

b:方式2

执行如下命令生成SayHello.wsdl

java org.apache.Axis.wsdl.Java2WSDLoSayHello.wsdl lhttp://localhost:8080/Axis/services/SayHello -nsayhello server.SayHello

执行如下命令生成client stub

java org.apache.Axis.wsdl.WSDL2Java SayHello.wsdl  -p client

生成的stub client文件列表为：

1.SayHello.java

2.SayHelloService.java。

3.SayHelloServiceLocator.java

4.SayHelloSoapBindingStub.java

6、编写客户端程序，编译并执行

public class SayHelloClient{    public static void main(String[] args);{        try{    SayHelloService service = new client.       SayHelloServiceLocator();;          client.SayHello_PortType   client = service.getSayHello();;            String retValue=client.getName("zhangsan");;            System.out.println(retValue);;} catch (Exception e);{ System.err.println ("Execution failed. Exception: " + e);;        }    }}