Caused by: java.net.SocketTimeoutException: connect timed out

fastDFS客户端连接不上服务器

问题：

com.github.tobato.fastdfs.exception.FdfsConnectException: 无法获取服务端连接资源：can't create connection to/192.168.25.129:22122

	at com.github.tobato.fastdfs.conn.DefaultConnection.(DefaultConnection.java:52)
	at com.github.tobato.fastdfs.conn.PooledConnectionFactory.create(PooledConnectionFactory.java:48)
	at com.github.tobato.fastdfs.conn.PooledConnectionFactory.create(PooledConnectionFactory.java:24)
	at org.apache.commons.pool2.BaseKeyedPooledObjectFactory.makeObject(BaseKeyedPooledObjectFactory.java:60)
	at org.apache.commons.pool2.impl.GenericKeyedObjectPool.create(GenericKeyedObjectPool.java:1041)
	at org.apache.commons.pool2.impl.GenericKeyedObjectPool.borrowObject(GenericKeyedObjectPool.java:342)
	at org.apache.commons.pool2.impl.GenericKeyedObjectPool.borrowObject(GenericKeyedObjectPool.java:265)
	at com.github.tobato.fastdfs.conn.ConnectionManager.getConnection(ConnectionManager.java:103)
	at com.github.tobato.fastdfs.conn.TrackerConnectionManager.executeFdfsTrackerCmd(TrackerConnectionManager.java:63)
	at com.github.tobato.fastdfs.service.DefaultTrackerClient.getStoreStorage(DefaultTrackerClient.java:39)
	at com.github.tobato.fastdfs.service.DefaultFastFileStorageClient.uploadFile(DefaultFastFileStorageClient.java:53)
	at com.leyou.upload.test.FdfsTest.testUpload(FdfsTest.java:31)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.springframework.test.context.junit4.statements.RunBeforeTestExecutionCallbacks.evaluate(RunBeforeTestExecutionCallbacks.java:74)
	at org.springframework.test.context.junit4.statements.RunAfterTestExecutionCallbacks.evaluate(RunAfterTestExecutionCallbacks.java:84)
	at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)
	at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)
	at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:251)
	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
	at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
	at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: java.net.SocketTimeoutException: connect timed out
	at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
	at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:589)
	at com.github.tobato.fastdfs.conn.DefaultConnection.(DefaultConnection.java:50)
	... 41 more

原因：

虚拟机的防火墙没有关闭。

解决：

在linux中输入以下命令关闭防火墙（该命令为Centos6.5版本命令）：service iptables stop
在此提供centos6.5其它几个防火墙命令：
1.永久性生效，重启后不会复原

开启： chkconfig iptables on

关闭： chkconfig iptables off

2.即时生效，重启后复原

开启： service iptables start

关闭： service iptables stop

3.查询TCP连接情况：

 netstat -n | awk '/^tcp/ {++S[$NF]} END {for(a in S) print a, S[a]}'

4.查询端口占用情况：

netstat   -anp   |   grep  portno（例如：netstat –apn | grep 80）