如果沒有網絡，Hibernate應用程序無法啓動

Question

我正在研究應用程序，並遇到與hibernate ehcache相關的問題。

當沒有網絡時，我正在處理的應用程序無法啓動。我查看了Tomcat日誌，我看到下面的例外。

爲什麼下面的異常被拋出？另外，如果網絡沒有問題，我不會遇到問題。

問候

Caused by: org.xml.sax.SAXParseException; systemId: http://ehcache-spring-annotations.googlecode.com/svn/schema/ehcache-spring/ehcache-spring-1.1.xsd; lineNumber: 1; columnNumber: 50; White spaces are required between publicId and systemId. 
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:198) 
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:177) 
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:441) 
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:368) 
at com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(XMLScanner.java:1388) 
at com.sun.org.apache.xerces.internal.impl.XMLScanner.scanExternalID(XMLScanner.java:1000) 
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.scanDoctypeDecl(XMLDocumentScannerImpl.java:647) 
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:931) 
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:607) 
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:116) 
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:489) 
at com.sun.org.apache.xerces.internal.impl.xs.opti.SchemaParsingConfig.parse(SchemaParsingConfig.java:629) 
at com.sun.org.apache.xerces.internal.impl.xs.opti.SchemaParsingConfig.parse(SchemaParsingConfig.java:685) 
at com.sun.org.apache.xerces.internal.impl.xs.opti.SchemaDOMParser.parse(SchemaDOMParser.java:530) 
at com.sun.org.apache.xerces.internal.impl.xs.traversers.XSDHandler.getSchemaDocument(XSDHandler.java:2155) 
at com.sun.org.apache.xerces.internal.impl.xs.traversers.XSDHandler.parseSchema(XSDHandler.java:562) 
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.loadSchema(XMLSchemaLoader.java:588) 
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.findSchemaGrammar(XMLSchemaValidator.java:2448) 
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.handleStartElement(XMLSchemaValidator.java:1767) 
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.emptyElement(XMLSchemaValidator.java:761) 
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:353) 
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2717) 
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:607) 
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:116) 
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:489) 
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:835) 
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:123) 
at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:237) 
at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:300) 
at org.springframework.beans.factory.xml.DefaultDocumentLoader.loadDocument(DefaultDocumentLoader.java:75) 
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:388) 
... 27 more 

的配置可以在下面找到。

<beans xmlns="http://www.springframework.org/schema/beans" 
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" 
xmlns:ehcache="http://ehcache-spring-annotations.googlecode.com/svn/schema/ehcache-spring" 
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd 
         http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd 
         http://www.springframework.org/schema/tx  http://www.springframework.org/schema/tx/spring-tx-3.0.xsd 
         http://www.springframework.org/schema/aop 
         http://www.springframework.org/schema/aop/spring-aop-3.0.xsd 
         http://ehcache-spring-annotations.googlecode.com/svn/schema/ehcache-spring http://ehcache-spring-annotations.googlecode.com/svn/schema/ehcache-spring/ehcache-spring-1.1.xsd"> 

Answer 1

你可以發佈你的配置文件頭（例如ehcache.xml）嗎？

我記得我有ehcache嘗試訪問互聯網的問題（我不確定是否是您的情況，但可能值得拍攝）。但我解決了它通過添加updateCheck =「false」到我的ehcache.xml配置（它禁用自動更新）：

<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
     xsi:noNamespaceSchemaLocation="http://ehcache.org/ehcache.xsd" updateCheck="false"> 

P.S.

也許這個線程White spaces are required between publicId and systemId可以給你一個關於解決方案的提示。

P.P.S. 也許你的應用程序無法訪問ehcache.xsd？ How to use local xsd for EhCache with Spring

Cannot find the declaration of element 'ehcache'

編輯

它看起來像你的應用程序找不到ehcache.xsd文件。所以，試試這個線程的解決方案：Cannot find the declaration of element 'ehcache'

Answer 2

這個異常對我來說沒有意義，但是我遇到了從Web引用的DTD/XSD的問題。沒有互聯網訪問，DTD/XSD無法檢索，導致各種錯誤。