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只需要3步把您的java程序转换为webservice

时间：2007-04-05 00:00:00 来源：JSP中国作者：

1、选择要转换的java文件，生成class
2、写wsdd
3、发布

剩下的就只有调用了wsdl2java

我原来的系统是CICS的，对后台封装了一层，现在用webservice再封装一层，前台页面，控制，数据传输，数据处理统统都可以分开了，爽
//以下是从网上找的关于AXIS的入门教程
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_PATHAxis-versionwebapps下的Axis包拷贝到TOMCAT_HOMEwebapps下，以下约定Axis_HOME为该TOMCAT_HOMEwebappsAxis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: omcatwebappsAxisWEB-INFclasses

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.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);
        }
    }
}

您也可以写server-config.wsdd
<?xml version="1.0" encoding="UTF-8"?>
<deployment xmlns="http://xml.apache.org/axis/wsdd/"
        xmlns:java="http://xml.apache.org/axis/wsdd/providers/java">
<globalConfiguration>

  <parameter name="adminPassword" value="admin"/>
  <parameter name="attachments.implementation"
          value="org.apache.axis.attachments.AttachmentsImpl"/>
  <parameter name="sendXsiTypes" value="true"/>
  <parameter name="sendMultiRefs" value="true"/>
  <parameter name="sendXMLDeclaration" value="true"/>
  <parameter name="axis.sendMinimizedElements" value="true"/>

  <requestFlow>
   <handler type="java:org.apache.axis.handlers.JWSHandler">
    <parameter name="scope" value="session"/>
   </handler>

   <handler type="java:org.apache.axis.handlers.JWSHandler">
    <parameter name="scope" value="request"/>
    <parameter name="extension" value=".jwr"/>
   </handler>

  </requestFlow>

</globalConfiguration>
<handler name="LocalResponder" type="java:org.apache.axis.transport.local.LocalResponder"/>
<handler name="URLMapper" type="java:org.apache.axis.handlers.http.URLMapper"/>
<handler name="Authenticate" type="java:org.apache.axis.handlers.SimpleAuthenticationHandler"/>
  <handler name="print" type="java:stub.LogHandler"/>

  <service name="sayhello" provider="java:RPC">
   <requestFlow>
     <handler type="print"/>
   </requestFlow>
  <parameter name="className"   value="stub.server.SayHello"/>
  <parameter name="allowedMethods"  value="*"/>
</service>

<transport name="http">
  <requestFlow>
   <handler type="URLMapper"/>
   <handler type="java:org.apache.axis.handlers.http.HTTPAuthHandler"/>
  </requestFlow>
</transport>
<transport name="local">
  <responseFlow>
   <handler type="LocalResponder"/>
  </responseFlow>
</transport>
</deployment>

来顶一下