以前还好用，也插入过数据，但是今天就不行了。
项目是maven项目，连接的mongodb在远程服务器上，而且远程服务器的ip和我的ip不在一个网段内，
我改了ip和远程服务器在一个网段后，能ping通远程服务器，但是不能上网了。就出现了mongodb连接超时
具体异常如下
com.mongodb.MongoSocketOpenException: Exception opening socket
at com.mongodb.connection.SocketStream.open(SocketStream.java:63) ~[mongodb-driver-core-3.1.0.jar:?]
at com.mongodb.connection.InternalStreamConnection.open(InternalStreamConnection.java:114) ~[mongodb-driver-core-3.1.0.jar:?]
at com.mongodb.connection.DefaultServerMonitor$ServerMonitorRunnable.run(DefaultServerMonitor.java:127) [mongodb-driver-core-3.1.0.jar:?]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_40]
Caused by: java.net.ConnectException: Connection refused: connect
at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method) ~[?:1.8.0_40]
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85) ~[?:1.8.0_40]
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:345) ~[?:1.8.0_40]
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) ~[?:1.8.0_40]
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) ~[?:1.8.0_40]
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) ~[?:1.8.0_40]
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[?:1.8.0_40]
at java.net.Socket.connect(Socket.java:589) ~[?:1.8.0_40]
at com.mongodb.connection.SocketStreamHelper.initialize(SocketStreamHelper.java:50) ~[mongodb-driver-core-3.1.0.jar:?]
at com.mongodb.connection.SocketStream.open(SocketStream.java:58) ~[mongodb-driver-core-3.1.0.jar:?]
... 3 more
看看是不是网关限制了
连接拒绝了 对应的mongodb的端口是否在侦听
Exception opening socket 错误你是怎么解决的