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请教aglet高手

hly_gyx

发贴: 15
积分: 0

于 2005-07-20 11:38

从一个应用程序启动一个aglet的时候，我编写的serverApp.java如下，import com.ibm.aglet.*;
import com.ibm.aglet.system.*;
import java.net.URL;

import java.util.Properties;
import com.ibm.awb.util.Resource;
import com.ibm.atp.daemon.Daemon;

public class ServerApp extends ContextAdapter {

public void agletCreated(ContextEvent ev) {
  System.out.println("Aglet Created : " + ev.getAgletProxy());
}
public void agletCloned(ContextEvent ev) {
  System.out.println("Aglet Cloned : " + ev.getAgletProxy());
}
public void agletArrived(ContextEvent ev) {
  System.out.println("Aglet Arrived : " + ev.getAgletProxy());
}
public void agletActivated(ContextEvent ev) {
  System.out.println("Aglet Activated : " + ev.getAgletProxy());
}

public void agletDisposed(ContextEvent ev) {
  System.out.println("Aglet Disposed : " + ev.getAgletProxy());
}
public void agletDispatched(ContextEvent ev) {
  System.out.println("Aglet Dispatched : " + ev.getAgletProxy());
}
public void agletDeactivated(ContextEvent ev) {
  System.out.println("Aglet Deactivated : " + ev.getAgletProxy());
}
public void agletReverted(ContextEvent ev) {
  System.out.println("Aglet Reverted : " + ev.getAgletProxy());
}

public void showMessage(ContextEvent ev) {
  System.out.println("message : " + ev.getMessage());
}
public static AgletProxy startAglet(AgletContext cxt,String AgletName) throws java.lang.Exception {

   AgletProxy p = cxt.createAglet(null,AgletName, null);
   return p;
   }
public static AgletContext initStart() throws java.lang.Exception {

  Daemon daemon = Daemon.init(null);

  daemon.setAccessLogStream(System.out);
  daemon.setMessageLogStream(System.out);
  daemon.setErrorLogStream(System.err);

    AgletRuntime runtime = AgletRuntime.init(null);

    AgletContext cxt = runtime.createAgletContext("test");
  cxt.addContextListener(new ServerApp());

  // If you want to allow incoming aglets to use GUI.
  // initialize gui....
String initializerName=System.getProperty("aglets.logger.class","org.aglets.log.quietInitializer");
Class.forName(initializerName);
  try {
   Class.forName("sun.awt.image.JPEGImageDecoder");
   Class.forName("sun.audio.AudioPlayer");
  } catch (Exception ex) {
   ex.printStackTrace();
  }
  try {
   Class.forName("sun.awt.PlatformFont"); // for 1.1
  } catch (Exception ex) {
   ex.printStackTrace();
  }
  try {
   new java.awt.Frame().addNotify();
  } catch (Exception ex) {
   ex.printStackTrace();
  } finally {
  }

  try {
   Class.forName("sun.awt.ScreenUpdater");
  } catch (Throwable t) {
  }

    daemon.start("aglets");

    cxt.start();
  return cxt;

}
}

运行的时候会出现以下错误提示：
java.lang.NullPointerException
at ecmAglet.ServerApp.startAglet(ServerApp.java:69)
at ecmAglet.ecmLanQue.service(ecmLanQue.java:228)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:588)
at sun.servlet.http.HttpServerHandler.sendResponse(HttpServerHandler.jav
a:165)
at sun.servlet.http.HttpServerHandler.handleConnection(Compiled Code)
at sun.servlet.http.HttpServerHandler.run(HttpServerHandler.java:90)
at java.lang.Thread.run(Thread.java:472)
哪位高手可指点一二。谢谢

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话题树型展开

人气	标题	作者	字数	发贴时间
13901	请教aglet高手	hly_gyx	3288	2005-07-20 11:38
11808	Re:请教aglet高手	liugongquan	26	2005-08-26 20:17
11877	Re:请教aglet高手	icefiregll	1455	2005-09-17 08:34
11637	Re:请教aglet高手	hly_gyx	23	2005-09-17 19:48
11684	Re:请教aglet高手	hly_gyx	41	2005-09-17 19:50
11736	Re:请教aglet高手	hly_gyx	41	2005-09-17 19:55
11621	Re:请教aglet高手	icefiregll	102	2005-09-17 21:32
12222	Re:请教aglet高手	icefiregll	46	2005-09-17 21:36
13601	Re:请教aglet高手	hly_gyx	57	2005-09-18 20:33

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