将Java程序转换为Webservice
来源:优易学  2011-2-3 19:03:42   【优易学:中国教育考试门户网】   资料下载   IT书店

  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
  {
  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.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
  xmlns:java="http://xml.apache.org/axis/wsdd/providers/java">
  value="org.apache.axis.attachments.AttachmentsImpl"/>

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