[英]Java RMI Connection refused
From the policy file:从策略文件:
permission java.net.SocketPermission "localhost:1024-", "listen, resolve";
permission java.net.SocketPermission "localhost:1099", "connect, resolve";
permission java.net.SocketPermission "localhost:1024-", "connect, resolve";
permission java.net.SocketPermission "localhost:1024-", "accept, resolve";
Having this code:有这个代码:
remoteObjName = "blabla";
final objectInterface engine = new object();
final Remote stub = UnicastRemoteObject.exportObject(engine, 0);
final Registry registry = LocateRegistry.getRegistry();
registry.rebind(remoteObjName, stub);//this line causes the exception.
What could cause this exception, on the last line registry.rebind(remoteObjName, stub);
什么可能导致此异常,在最后一行
registry.rebind(remoteObjName, stub);
: :
java.rmi.ConnectException: Connection refused to host: 127.0.0.1; nested exception is:
java.net.ConnectException: Connection refused: connect
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.rebind(Unknown Source)
at app.ConnectionHandler$QAProbeRemote.startEngine(ConnectionHandler.java:47)
at app.Main.<init>(Main.java:71)
at app.Main$1.run(Main.java:49)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$000(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.net.ConnectException: Connection refused: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(Unknown Source)
at java.net.PlainSocketImpl.connectToAddress(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at java.net.Socket.<init>(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)
... 22 more
您尚未启动注册表,因此连接失败。
You need to start "rmiregistry" registry that found in the JRE folder.您需要启动在 JRE 文件夹中找到的“rmiregistry”注册表。
For example, let's say your JRE folder is in: C:\\Program Files\\Java\\jre1.8.0_271\\bin例如,假设您的 JRE 文件夹位于:C:\\Program Files\\Java\\jre1.8.0_271\\bin
You can go to that folder and run rmiregistry.exe您可以转到该文件夹并运行 rmiregistry.exe
The rmiregistry.exe will run in a console. rmiregistry.exe 将在控制台中运行。 Leave it in background.
把它留在后台。
If you prefer to do it through cmd, follow this:如果您更喜欢通过 cmd 执行此操作,请按照以下步骤操作:
Open cmd, and write:打开cmd,输入:
cd C:\\Program Files\\Java\\jre1.8.0_271\\bin cd C:\\Program Files\\Java\\jre1.8.0_271\\bin
Hit 'Enter', and then write:按“Enter”,然后写:
start rmiregistry启动 rmirregistry
And hit 'Enter' again.并再次点击“Enter”。
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