java.io.IOException: Unable to establish loopback connection

时间：2024-01-21 13:41:21

1、错误描述

Starting preview server on port 8080

Modules:
  HTML5 (/HTML5)

2017-06-17 11:13:04.823:INFO::main: Logging initialized @524ms
2017-06-17 11:13:05.017:INFO:oejs.Server:main: jetty-9.3.9.v20160517
java.io.IOException: Unable to establish loopback connection
	at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:94)
	at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:61)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:171)
	at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)
	at java.nio.channels.Pipe.open(Pipe.java:155)
	at sun.nio.ch.WindowsSelectorImpl.<init>(WindowsSelectorImpl.java:127)
	at sun.nio.ch.WindowsSelectorProvider.openSelector(WindowsSelectorProvider.java:44)
	at java.nio.channels.Selector.open(Selector.java:227)
	at org.eclipse.jetty.io.ManagedSelector.newSelector(ManagedSelector.java:96)
	at org.eclipse.jetty.io.ManagedSelector.doStart(ManagedSelector.java:90)
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114)
	at org.eclipse.jetty.io.SelectorManager.doStart(SelectorManager.java:273)
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:106)
	at org.eclipse.jetty.server.AbstractConnector.doStart(AbstractConnector.java:260)
	at org.eclipse.jetty.server.AbstractNetworkConnector.doStart(AbstractNetworkConnector.java:81)
	at org.eclipse.jetty.server.ServerConnector.doStart(ServerConnector.java:235)
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
	at org.eclipse.jetty.server.Server.doStart(Server.java:390)
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
	at org.eclipse.wst.server.preview.internal.PreviewStarter.run(PreviewStarter.java:72)
	at org.eclipse.wst.server.preview.internal.PreviewStarter.main(PreviewStarter.java:29)
Caused by: java.net.ConnectException: Connection timed out: connect
	at sun.nio.ch.Net.connect0(Native Method)
	at sun.nio.ch.Net.connect(Net.java:454)
	at sun.nio.ch.Net.connect(Net.java:446)
	at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:648)
	at java.nio.channels.SocketChannel.open(SocketChannel.java:189)
	at sun.nio.ch.PipeImpl$Initializer$LoopbackConnector.run(PipeImpl.java:127)
	at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:76)
	... 25 more

2、错误原因

eclipse配置运行服务器时，使用的是HTTP Preview，但是由于本地防火墙的原因，导致报错

3、解决办法

（1）关闭本地防火墙

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