RMI Problem,Please help~~~~~~~~~~

WebNMS Framework

ajane

in WebNMS Framework • 7 years ago

The code chip:

if (apiName.equals("EventAPI") && eventAPI == null)

{

try

{

return Naming.lookup("//" + NmsClientUtil.applet.getParameter("BE_HOST_NAME") + "/" + apiName);

}

catch(Exception e)

{

e.printStackTrace();

}

The Exception:

java.rmi.UnknownHostException: Unknown host: PC2010102615aju; nested exception is:

java.net.UnknownHostException: PC2010102615aju

at sun.rmi.transport.tcp.TCPEndpoint.newSocket(Unknown Source)

at sun.rmi.transport.tcp.TCPChannel.createConnection(Unknown Source)

at sun.rmi.transport.tcp.TCPChannel.newConnection(Unknown Source)

at sun.rmi.server.UnicastRef.newCall(Unknown Source)

at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)

at java.rmi.Naming.lookup(Unknown Source)

at com.gview.net.tools.APIFactory.getAPIRefer(APIFactory.java:134)

at com.gview.net.tools.APIFactory.getEventAPI(APIFactory.java:62)

at com.gview.client.custom.EventsList.<init>(EventsList.java:998)

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)

at java.lang.reflect.Constructor.newInstance(Unknown Source)

at java.lang.Class.newInstance0(Unknown Source)

at java.lang.Class.newInstance(Unknown Source)

at com.adventnet.nms.startclient.MainPanel.createNmsPanel(MainPanel.java:7883)

at com.adventnet.nms.startclient.MainPanel.run(MainPanel.java:611)

at com.adventnet.nms.startclient.MainPanel.init(MainPanel.java:451)

at com.adventnet.nms.startclient.NmsMainFrame.init(NmsMainFrame.java:75)

at com.adventnet.nms.startclient.NmsMainApplet.run(NmsMainApplet.java:354)

at java.lang.Thread.run(Unknown Source)

Caused by: java.net.UnknownHostException: PC2010102615aju

at java.net.PlainSocketImpl.connect(Unknown Source)

at java.net.Socket.connect(Unknown Source)

at java.net.Socket.<init>(Unknown Source)

at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(Unknown Source)

at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(Unknown Source)

... 21 more

Replies(8)

ayush

Re: RMI Problem,Please help~~~~~~~~~~

7 years ago

Hi ajane,

If you are trying to get the EventAPI handle at server side, then you could use

EventAPI eventAPI;
      String hostName = "localhost";
      String apiString = "//" + hostName + "/EventAPI";  // hostName specifies name of the host
      //This can be used when user wants to gets the handle through RMI lookup
      eventAPI = (EventAPI) Naming.lookup(apiString);
You can refer the below link for more details:

https://www.webnms.com/telecom/help/javadocs/consolidated_javadocs/com/adventnet/nms/eventdb/EventAPI.html

When ever you are using hostname, make sure that the server/machine is reachable with that name.

(OR) use the ipaddress instead of hostname.

Thanks,

Ayush

ajane

回复: Re: RMI Problem,Please help~~~~~~~~~~

7 years ago

Hi ayush,

Thank you very much for your help , I use the ipaddress instead of hostname ,but even have exception,I cant find the reason.

The code chip:

return Naming.lookup("//27.154.20.18/" + apiName);


And the exception:

java.rmi.ConnectException: Connection refused to host: 192.168.0.186; nested exception is: 


PS :  27.154.20.18 is outer ip ,and  192.168.0.186 is  inner ip

Thanks,
ajane