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标题: Axis安装开发webservice例子 [打印本页]

作者: 翔子 时间: 2006-4-10 21:29
标题: Axis安装开发webservice例子
一、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 HelloClientInterface
extends 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.java
import 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
<deployment xmlns=
"http://xml.apache.org/Axis/wsdd/"
  xmlns:java=
"http://xml.apache.org/Axis/wsdd/providers/java">
<handler name="print" type="java:LogHandler"/>
<service name="sayhello"
provider="java:RPC">
<requestFlow>
   <handler type="print"/>
</requestFlow>
  <parameter name="className"
  value="server.SayHello"/>
  <parameter name="allowedMethods"
  value="*"/>
</service>
</deployment>

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，

执行下面的命令生成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.Java2WSDL -oSayHello.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);
      }
}
}

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