java.net.NoRouteToHostException: No route to host: no further information

来源：互联网发布：理财软件对比分析编辑：程序博客网时间：2024/04/30 12:24

之前一直不知道这个错误是怎么回事，今天终于在一次意外中找寻到答案

错误：

16:12:38,921 [ERROR] - ++++ failed to get SockIO obj for: 192.168.1.4:1121116:12:38,921 [ERROR] - No route to host: no further informationjava.net.NoRouteToHostException: No route to host: no further information        at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)        at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)        at sun.nio.ch.SocketAdaptor.connect(SocketAdaptor.java:100)        at com.danga.MemCached.SockIOPool$SockIO.getSocket(SockIOPool.java:1612)        at com.danga.MemCached.SockIOPool$SockIO.<init>(SockIOPool.java:1585)        at com.danga.MemCached.SockIOPool.createSocket(SockIOPool.java:782)        at com.danga.MemCached.SockIOPool.selfMaint(SockIOPool.java:1331)        at com.danga.MemCached.SockIOPool$MaintThread.run(SockIOPool.java:1497)16:12:38,921 [ERROR] - ++++ failed to close socket: ++++ socket or its streams already null in trueClose call16:12:38,921 [ERROR] - ++++ failed to close SockIO obj from deadPool16:12:38,921 [ERROR] - ++++ socket or its streams already null in trueClose calljava.io.IOException: ++++ socket or its streams already null in trueClose call        at com.danga.MemCached.SockIOPool$SockIO.trueClose(SockIOPool.java:1704)        at com.danga.MemCached.SockIOPool.selfMaint(SockIOPool.java:1432)        at com.danga.MemCached.SockIOPool$MaintThread.run(SockIOPool.java:1497)16:12:38,937 [ERROR] - ++++ failed to close SockIO obj from deadPool16:12:38,937 [ERROR] - ++++ socket or its streams already null in trueClose calljava.io.IOException: ++++ socket or its streams already null in trueClose call        at com.danga.MemCached.SockIOPool$SockIO.trueClose(SockIOPool.java:1704)        at com.danga.MemCached.SockIOPool.selfMaint(SockIOPool.java:1432)        at com.danga.MemCached.SockIOPool$MaintThread.run(SockIOPool.java:1497)16:12:38,937 [ERROR] - ++++ failed to close SockIO obj from deadPool16:12:38,937 [ERROR] - ++++ socket or its streams already null in trueClose call

后来经过查询，说是防火墙设置可能阻挡此类程序访问网络

但觉得不可能，之前运行还是好好的，如果一开始防火墙就阻止是不可能的。

后来想起原来下午不小心让网络断了，于是就想：貌似是断网引起的，结果一测，果真如些。。。