JMXConnectorFactory.connect 出现“ Java .rmi.ConnectException: Connection refused to host: localhost”
JasonLaw 2022 年 8 月 23 日 1669 次点击这是一个创建于 1341 天前的主题，其中的信息可能已经有所发展或是发生改变。
JMXConnectorFactory.connect 的时候出现异常，在网上找了很久，完全没有任何思路。有谁知道怎么解决吗？或者提供一下思路，Thanks in advance.
java.io.IOException: Failed to retrieve RMIServer stub: javax.naming.ServiceUnavailableException [Root exception is java.rmi.ConnectException: Connection refused to host: localhost; nested exception is: java.net.ConnectException: Connection refused (Connection refused)] at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:369) at javax.management.remote.JMXConnectorFactory.connect(JMXConnectorFactory.java:270) at *** internal code *** at *** internal code *** Caused by: javax.naming.ServiceUnavailableException [Root exception is java.rmi.ConnectException: Connection refused to host: localhost; nested exception is: java.net.ConnectException: Connection refused (Connection refused)] at com.sun.jndi.rmi.registry.RegistryContext.lookup(RegistryContext.java:136) at com.sun.jndi.toolkit.url.GenericURLContext.lookup(GenericURLContext.java:205) at javax.naming.InitialContext.lookup(InitialContext.java:417) at javax.management.remote.rmi.RMIConnector.findRMIServerJNDI(RMIConnector.java:1955) at javax.management.remote.rmi.RMIConnector.findRMIServer(RMIConnector.java:1922) at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:287) ... 3 more Caused by: java.rmi.ConnectException: Connection refused to host: localhost; nested exception is: java.net.ConnectException: Connection refused (Connection refused) at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:623) at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216) at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202) at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:342) at sun.rmi.registry.RegistryImpl_Stub.lookup(RegistryImpl_Stub.java:116) at com.sun.jndi.rmi.registry.RegistryContext.lookup(RegistryContext.java:132) ... 8 more Caused by: java.net.ConnectException: Connection refused (Connection refused) at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394) at java.net.Socket.connect(Socket.java:606) at java.net.Socket.connect(Socket.java:555) at java.net.Socket.<init>(Socket.java:451) at java.net.Socket.<init>(Socket.java:228) at sun.rmi.transport.proxy.RMIDirectSocketFactory.createocket(RMIDirectSocketFactory.java:40) at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:148) at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:617) ... 13 more Create MBeanServerConnection error! 4 条回复
 | 1 PendingOni 2022 年 8 月 24 日 1-可以试试改 /etc/hosts 里面的 localhost 的那项, 改成公网 IP 2-或者在 RMI 的服务端启动脚本里面显式的更改 hostname [ -Djava.rmi.server.hostname=$hostname ] |
| 2 PendingOni 2022 年 8 月 24 日 |
 | 3 JasonLaw OP @PendingOni #1 我现在已经解决了，不过我不太确定我是怎么解决的，因为我现在已经重现不了了。我怀疑是 server 根本没有启动起来，因为我在本地试过了，如果 server 没有启动，尝试 connect 就会出现这个异常，启动后，JMXConnectorFactory.connect 能够正常执行。 诡异的是，昨天的日志根本没有任何异常信息。 anyway ，现在已经搞定了。 |
| 4 PendingOni 2022 年 8 月 24 日 @JasonLaw Fine. |
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