Question

java用JMX远程监控客户端的一个练习报错：

Exception in thread "main" 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: connect]
at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:338)
at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:227)
at cn.com.agree.monitor.RMIClientTest.main(RMIClientTest.java:54)
Caused by: javax.naming.ServiceUnavailableException [Root exception is java.rmi.ConnectException: Connection refused to host: localhost; nested exception is:
java.net.ConnectException: Connection refused: connect]
at com.sun.jndi.rmi.registry.RegistryContext.lookup(RegistryContext.java:101)
at

Answer 1

你第一次通信成功之后，直到程序退出的你在代码中没有正常关闭网络连接导致端口堵塞，所以后面再连就连接不上，导致错误检查下你程序退出部分的代码，或者你第一次程序结束后去netstat查下端口的占用就知道怎么处理了

Answer 2

这么流氓，监控客户端！

Answer 3

权限够吗?

Answer 4

拒绝连接到主机！！！权限，开远程了么？