我在Google App Engine Web应用程序中编写了一个SAX解析器。在那里我尝试用xsd验证我的xml文件。但是当我的代码用来访问xsd时,我得到了一个访问控制异常。
java.security.AccessControlException: access denied (java.io.FilePermission \WEB-INF\ApplicationResponse.xsd read)
at java.security.AccessControlContext.checkPermission(AccessControlContext.java:264)
at java.security.AccessController.checkPermission(AccessController.java:427)
at java.lang.SecurityManager.checkPermission(SecurityManager.java:532)
at com.google.appengine.tools.development.DevAppServerFactory$CustomSecurityManager.checkPermission(DevAppServerFactory.java:166)
at java.lang.SecurityManager.checkRead(SecurityManager.java:871)
at java.io.FileInputStream.(FileInputStream.java:100)
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.xsdToXMLInputSource(XMLSchemaLoader.java:830)
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.processJAXPSchemaSource(XMLSchemaLoader.java:708)
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.loadSchema(XMLSchemaLoader.java:554)
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.findSchemaGrammar(XMLSchemaValidator.java:2459)
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.handleStartElement(XMLSchemaValidator.java:1807)
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.startElement(XMLSchemaValidator.java:705)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:330)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl$NSContentDispatcher.scanRootElementHook(XMLNSDocumentScannerImpl.java:779)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java:1794)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java: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 sax.SAXLocalNameCount.parse(SAXLocalNameCount.java:220)
at com.sms2mint.InterfaceServlet.doGet(InterfaceServlet.java:54)
请让我知道如何调试这个?
我试图将xsd放在类,webcontent,/ WEB-INF中,但没有帮助。同样在appengine-web.xml中将其声明为资源文件,但无济于事。
答案 0 :(得分:1)
根据:
http://code.google.com/appengine/docs/java/jrewhitelist.html
FileInputStream应该是列入白名单的阅读器功能。您是否在开发环境中遇到此访问问题(在这种情况下,您的开发环境是什么?有报告称使用Eclipse插件的人员在重新启动eclipse,清理和重新构建项目后解决了类似问题),或者在已部署的应用程序中?
您如何指定文件的路径?你能加入代码吗?