以下代码引发错误：
<c:set var="product" value='<%= request.getAttribute("jaxbString")%>'></c:set><c:import var="xsl" url="<%= ConstantManager.xslProduct%>" charEncoding="UTF-8"></c:import>
<x:transform doc="${product}" xslt="${xsl}"></x:transform>
以及日志文件上的错误：
文件1：输出文件-错误详细信息
> ERROR: 'Premature end of file.'
> ERROR: 'com.sun.org.apache.xml.internal.utils.WrappedRuntimeException:
Premature end of file.'
File 2: Log file - Exception Detail
> 21-Aug-2018 20:57:19.151 SEVERE [http-nio-8084-exec-199]
> org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service()
> for servlet [ProcessServlet] in context with path [/XMLProjectVer2] threw exception [javax.servlet.ServletException:
> javax.servlet.jsp.JspException:
> javax.xml.transform.TransformerException:
> javax.xml.transform.TransformerException:
> com.sun.org.apache.xml.internal.utils.WrappedRuntimeException:
> Premature end of file.] with root cause
> com.sun.org.apache.xml.internal.utils.WrappedRuntimeException: Premature end of file.
> at com.sun.org.apache.xalan.internal.xsltc.dom.XSLTCDTMManager.getDTM(XSLTCDTMManager.java:464)
> at com.sun.org.apache.xalan.internal.xsltc.dom.XSLTCDTMManager.getDTM(XSLTCDTMManager.java:252)
> at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.getDOM(TransformerImpl.java:565)
> at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:748)
> at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:359)
> at org.apache.taglibs.standard.tag.common.xml.TransformSupport.doEndTag(TransformSupport.java:237)
> at org.apache.jsp.MainPage_jsp._jspx_meth_x_005ftransform_005f0(MainPage_jsp.java:406)
> at org.apache.jsp.MainPage_jsp._jspService(MainPage_jsp.java:321)
> at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
> at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:438)
> at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)
> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:720)
> at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:466)
> at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:391)
> at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:318)
> at sample.servlet.GetProductServlet.processRequest(GetProductServlet.java:62)
> at sample.servlet.GetProductServlet.doGet(GetProductServlet.java:84)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:720)
> at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:466)
> at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:391)
> at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:318)
> at sample.servlet.SetCateServlet.processRequest(SetCateServlet.java:51)
> at sample.servlet.SetCateServlet.doGet(SetCateServlet.java:72)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:720)
> at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:466)
> at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:391)
> at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:318)
> at sample.servlet.ProcessServlet.processRequest(ProcessServlet.java:51)
> at sample.servlet.ProcessServlet.doGet(ProcessServlet.java:68)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:217)
> at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
> at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
> at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
> at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
> at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
> at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:673)
> at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500)
> at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
> at java.lang.Thread.run(Thread.java:745)
>
请帮助找出原因和解决方法
答案 0 :(得分：0)
您正在使用相同的变量来回传输。只需更改变量