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Struts开发的WEB应用脱机浏览时TOMCAT发生java.net.unknownhostException

2014-01-26 
我快被逼疯了,关于struts的怪异问题弄的我好没面子 呀我去软件学院演示的时候启动TOMCAT发生了java.net.unk

我快被逼疯了,关于struts的怪异问题
  弄的我好没面子 呀
  我去软件学院演示的时候启动TOMCAT发生了java.net.unknownhostException
  弄的我没有演示成功
  希望各位大侠能帮帮我的 帮
  谢谢了
  好象是struts-config.xml没有加载因为在JSP页面上的错误是
  Cannot find global ActionForward for name welcome
  struts-config.xml开始处是
  <!DOCTYPE struts-config PUBLIC
  "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN"
  "http://struts.apache.org/dtds/struts-config_1_2.dtd">
  struts-config_1_2.dtd要到struts.apache.org网站上加载吗?
  我糊涂了
  你帮忙呀
  谢谢
  严重: Parsing error processing resource path
  ava.net.UnknownHostException: struts.apache.org
  at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:177)
  at java.net.Socket.connect(Socket.java:507)
  at java.net.Socket.connect(Socket.java:457)
  at sun.net.NetworkClient.doConnect(NetworkClient.java:157)
  at sun.net.www.http.HttpClient.openServer(HttpClient.java:365)
  at sun.net.www.http.HttpClient.openServer(HttpClient.java:477)
  at sun.net.www.http.HttpClient.<init>(HttpClient.java:214)
  at sun.net.www.http.HttpClient.New(HttpClient.java:287)
  at sun.net.www.http.HttpClient.New(HttpClient.java:299)
  at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:792)
  at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:744)
  at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:669)
  at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:913)
  at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.setupCurrentEntity(XMLEntityManager.jav
  at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.startEntity(XMLEntityManager.java:905)
  at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.startDTDEntity(XMLEntityManager.java:87
  at com.sun.org.apache.xerces.internal.impl.XMLDTDScannerImpl.setInputSource(XMLDTDScannerImpl.java:
  at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$DTDDispatcher.dispatch(XMLDocumen
 
  at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentF
  368)
  at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:834)
  at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:764)
  at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:148)
  at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1242)
  at org.apache.commons.digester.Digester.parse(Digester.java:1548)         

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