Jetty 加载战争时出现超时异常

Question

这是一个非常基本的例子。 我想使用下面的码头加载 Web 应用程序。

public static void main(String[] args) throws Exception {
    Server server = new Server(8085);    
    WebAppContext webapp = new WebAppContext( "D:/workspace/camel/TestWithGradle/src/main/java/sample.war" , "sample");
    webapp.setExtractWAR(true);
    webapp.setParentLoaderPriority(true);


    server.setHandler(webapp);
    server.start();
    server.join();
}

战争是https://github.com/heroku/heroku-deploy/blob/master/spec/resources/sample-war.war 这是使用 jsp 文件和 java servlet 的非常简单的战争。

但是，我运行这个应用程序，控制台给出了异常..

2014-11-24 23:52:49.528:INFO::main: Logging initialized @333ms
2014-11-24 23:52:49.689:INFO:oejs.Server:main: jetty-9.1.5.v20140505
2014-11-24 23:53:11.779:WARN:oejw.WebAppContext:main: Failed startup of context o.e.j.w.WebAppContext@364de63{sample,file:/C:/Users/SDS/AppData/Local/Temp/jetty-0.0.0.0-8085-sample.war-sample-any-853618354381316480.dir/webapp/,null}{D:/workspace/camel/TestWithGradle/src/main/java/sample.war}
java.net.ConnectException: Connection timed out: connect
    at java.net.DualStackPlainSocketImpl.connect0(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:579)
    at java.net.Socket.connect(Socket.java:528)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:432)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:527)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:211)
    at sun.net.www.http.HttpClient.New(HttpClient.java:308)
    at sun.net.www.http.HttpClient.New(HttpClient.java:326)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:996)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:932)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:850)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1300)
    at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.setupCurrentEntity(XMLEntityManager.java:637)
    at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.startEntity(XMLEntityManager.java:1290)
    at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.startDTDEntity(XMLEntityManager.java:1257)
    at com.sun.org.apache.xerces.internal.impl.XMLDTDScannerImpl.setInputSource(XMLDTDScannerImpl.java:263)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$DTDDriver.dispatch(XMLDocumentScannerImpl.java:1164)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$DTDDriver.next(XMLDocumentScannerImpl.java:1050)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:964)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606)
    at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:117)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:848)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:777)
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
    at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213)
    at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:649)
    at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(SAXParserImpl.java:333)
    at org.eclipse.jetty.xml.XmlParser.parse(XmlParser.java:246)
    at org.eclipse.jetty.webapp.Descriptor.parse(Descriptor.java:67)
    at org.eclipse.jetty.webapp.WebDescriptor.parse(WebDescriptor.java:204)
    at org.eclipse.jetty.webapp.MetaData.setWebXml(MetaData.java:192)
    at org.eclipse.jetty.webapp.WebXmlConfiguration.preConfigure(WebXmlConfiguration.java:60)
    at org.eclipse.jetty.webapp.WebAppContext.preConfigure(WebAppContext.java:460)
    at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:496)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:125)
    at org.eclipse.jetty.server.Server.start(Server.java:358)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:107)
    at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:60)
    at org.eclipse.jetty.server.Server.doStart(Server.java:325)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
    at TestServer.main(TestServer.java:21)
2014-11-24 23:53:11.874:INFO:oejs.ServerConnector:main: Started ServerConnector@5054a835{HTTP/1.1}{0.0.0.0:8085}
2014-11-24 23:53:11.875:INFO:oejs.Server:main: Started @22829ms

请帮我详细解释一下。感谢您的阅读和您的时间。

Answer 1

您有一个带有错误 DTD 或命名空间声明的 XML。

这家初创公司正在尝试从远程 URL 获取某种资源，用于验证 XML。

正常的码头分布或正常的码头 jar 工件不会发生这种情况。

首先要确保您使用的是官方的 jetty jars，不要重新包装它们，不要 uberjar 它们，不要一个罐子，不要管它们（暂时）。

然后确保您的各种 XML 文件中没有拼写错误。特别是在您的 war 文件中，以及 WEB-INF/lib/*.jar 文件的所有内容中。可能有一个小错字或引用不正确，以至于 Jetty 无法使用 Jetty jar 附带的验证资源来快捷地远程资源请求。