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Java 使用Jena和AXIS在Web服务上调用TargetException_Java_Web Services_Soap_Axis_Jena - Fatal编程技术网

Java 使用Jena和AXIS在Web服务上调用TargetException

Java 使用Jena和AXIS在Web服务上调用TargetException,java,web-services,soap,axis,jena,Java,Web Services,Soap,Axis,Jena,我是stackOverflow新来的所以,再次你好= 我正在使用Jena语义Web框架、Pellet Reasoner、Linux机器上的Eclipse IDE和Virtuoso OSE来存储我的图形。我还使用protegeeditor=创建了我的本体 我正在使用SOAP开发一个客户机-服务器应用程序,我编写了一个过程,该过程读取基本模型,使用pellet应用推理,并将整个推理模型写入一个临时owl文件,然后,另一个过程读取推理模型并将其存储在Virtuoso中,因此我可以使用Python客户机

我是stackOverflow新来的所以,再次你好=

我正在使用Jena语义Web框架、Pellet Reasoner、Linux机器上的Eclipse IDE和Virtuoso OSE来存储我的图形。我还使用protegeeditor=创建了我的本体

我正在使用SOAP开发一个客户机-服务器应用程序,我编写了一个过程,该过程读取基本模型,使用pellet应用推理,并将整个推理模型写入一个临时owl文件,然后,另一个过程读取推理模型并将其存储在Virtuoso中,因此我可以使用Python客户机通过Virtuoso的SPARQL端点查询它

问题是,当我调用调用生成推理模型的过程的web服务时,我在问题的末尾得到了这个消息complete stack trace

AxisFault
    faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.userException
    faultSubcode: 
    faultString: java.lang.reflect.InvocationTargetException
    faultActor: 
    faultNode: 
    faultDetail: 
      {http://xml.apache.org/axis/}hostname:leia
这是生成推理模型的例程,也是引发异常的例程

public InfModel reasonOverModel(String path) {
    Model emptyModel = ModelFactory.createDefaultModel();

    // Pellet instance
    Reasoner reasoner = PelletReasonerFactory.theInstance().create();

    InfModel model = ModelFactory.createInfModel(reasoner, emptyModel);
    try {
        InputStream in = FileManager.get().open(path);
        model.read(in, "");
    } catch (Exception ex) {
        // TODO: log with log4j
        ex.printStackTrace();
        return null;
    }
    return model;
}
它正在从path读取基础模型,并对其进行推理,但它没有返回,我的catch子句也没有捕获该异常,我不知道为什么。这似乎是一个轴心问题

有什么想法、线索或建议吗?? 提前多谢 来自委内瑞拉加拉加斯的问候 --------------在这里完成Stacktrace---------------

AxisFault faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.userException faultSubcode: faultString: java.lang.reflect.InvocationTargetException faultActor: faultNode: faultDetail: {http://xml.apache.org/axis/}hostname:leia java.lang.reflect.InvocationTargetException at org.apache.axis.message.SOAPFaultBuilder.createFault(SOAPFaultBuilder.java:222) at org.apache.axis.message.SOAPFaultBuilder.endElement(SOAPFaultBuilder.java:129) at org.apache.axis.encoding.DeserializationContext.endElement(DeserializationContext.java:1087) at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source) at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) at org.apache.xerces.parsers.XMLParser.parse(Unknown Source) at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source) at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source) at javax.xml.parsers.SAXParser.parse(SAXParser.java:395) at org.apache.axis.encoding.DeserializationContext.parse(DeserializationContext.java:227) at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java:696) at org.apache.axis.Message.getSOAPEnvelope(Message.java:435) at org.apache.axis.handlers.soap.MustUnderstandChecker.invoke(MustUnderstandChecker.java:62) at org.apache.axis.client.AxisClient.invoke(AxisClient.java:206) at org.apache.axis.client.Call.invokeEngine(Call.java:2784) at org.apache.axis.client.Call.invoke(Call.java:2767) at org.apache.axis.client.Call.invoke(Call.java:2443) at org.apache.axis.client.Call.invoke(Call.java:2366) at org.apache.axis.client.Call.invoke(Call.java:1812) at com.thesis.server.Admin.updateReasonedModel(Admin.java:21) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.axis.providers.java.RPCProvider.invokeMethod(RPCProvider.java:397) at org.apache.axis.providers.java.RPCProvider.processMessage(RPCProvider.java:186) at org.apache.axis.providers.java.JavaProvider.invoke(JavaProvider.java:323) at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:32) at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:118) at org.apache.axis.SimpleChain.invoke(SimpleChain.java:83) at org.apache.axis.handlers.soap.SOAPService.invoke(SOAPService.java:454) at org.apache.axis.server.AxisServer.invoke(AxisServer.java:281) at org.apache.axis.transport.http.AxisServlet.doPost(AxisServlet.java:699) at javax.servlet.http.HttpServlet.service(HttpServlet.java:641) at org.apache.axis.transport.http.AxisServletBase.service(AxisServletBase.java:327) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:928) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:539) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:298) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) 1月19日编辑:

我还试着按照@RakeshPatel的建议,将Tomcat7中的所有内容移动到Tomcat6.0.35,但仍然得到了相同的异常

我一直在阅读关于InvocationTargetException的文章,它包装了其他异常,因此,我在客户端捕获了它,并使用getCause方法获得了原因,但它返回null。这很奇怪,因为我调试了它,它似乎正在执行所有的try块,但它从未到达return语句


有什么线索或建议吗?

我已经解决了这个问题


如果我错了,Jena似乎不是线程安全的,请让我知道,这就是为什么我不能将其公开为web服务,我选择开发一个单独的web应用程序,使用Jena类并管理我的OWL文档,全部使用Java。

我已经解决了这个问题

如果我错了,Jena似乎不是线程安全的,请让我知道,这就是为什么我不能将其公开为web服务,我选择开发一个单独的web应用程序,使用Jena类并管理我的OWL文档,全部使用Java