【发布时间】：2019-01-29 15:31:32
【问题描述】：
我有一个生成一些 PDF 的应用程序。这适用于预生产系统，但不适用于生产系统。我们在 weblogic 10.3.6 中部署，两个环境应该有相同的配置
在非生产环境中进行所有功能测试后，我们已收到部署 Web 应用程序的许可。问题是应用程序必须创建的最终 PDF 在生产中不起作用（但在测试环境中，是的）。 我们正在使用：
<dependency>
<groupId>org.xhtmlrenderer</groupId>
<artifactId>core-renderer</artifactId>
<version>R8</version>
<scope>compile</scope>
</dependency>
public static void crearPDFHTML(String htmlPlantilla, OutputStream pdf)
throws Exception {
try
{
ITextRenderer renderer = new ITextRenderer();
//String plantillaLimpia = makeTidy(htmlPlantilla);
LOG.info("Antes de limpiar caracteres especiales");
String limpio = quitarCaracteresEspeciales(htmlPlantilla);
LOG.info("Antes de poner el documento en el render");
LOG.info(limpio);
renderer.setDocumentFromString(limpio);
LOG.info("antes del layout");
renderer.layout();//HERE FAILS IN PRODUCTIVE ENVIRONEMENT
LOG.info("antes de crear PDF");
renderer.createPDF(pdf);
LOG.info("PDF creado con éxito");
}catch(Throwable e)
{
e.printStackTrace();
throw new Exception(e);
}
}
如果网络应用程序在预环境中运行良好，它应该在专业环境中运行相同，并生成 PDF。
堆栈跟踪：
java.lang.Exception: java.lang.NullPointerException
at es.msssi.gepsa.utils.PDFUtils.crearPDFHTML(PDFUtils.java:47)
at es.msssi.gepsa.utils.PlantillaPSA.rellenarPlantilla(PlantillaPSA.java:456)
at es.msssi.gepsa.web.controller.DocumentoPSAController.generaDocumentoPSA(DocumentoPSAController.java:269)
at es.msssi.gepsa.web.controller.PsaController.generaDocumentoPSA(PsaController.java:454)
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.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:781)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:721)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:943)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:869)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:821)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:301)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:27)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:61)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:89)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:61)
at es.msssi.common.seguridad.GenericExisteAtributoFilter.doFilter(GenericExisteAtributoFilter.java:158)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:61)
at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:119)
at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:171)
at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:61)
at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:163)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3714)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2182)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1491)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)
Caused by: java.lang.NullPointerException
at weblogic.net.http.HttpURLConnection.getInputStream(HttpURLConnection.java:459)
at weblogic.net.http.SOAPHttpURLConnection.getInputStream(SOAPHttpURLConnection.java:37)
at java.net.URL.openStream(URL.java:1017)
at org.xhtmlrenderer.swing.NaiveUserAgent.resolveAndOpenStream(NaiveUserAgent.java:122)
at org.xhtmlrenderer.pdf.ITextUserAgent.getImageResource(ITextUserAgent.java:54)
at org.xhtmlrenderer.pdf.ITextReplacedElementFactory.createReplacedElement(ITextReplacedElementFactory.java:57)
at org.xhtmlrenderer.render.BlockBox.calcDimensions(BlockBox.java:674)
at org.xhtmlrenderer.render.BlockBox.calcDimensions(BlockBox.java:628)
at org.xhtmlrenderer.render.BlockBox.layout(BlockBox.java:763)
at org.xhtmlrenderer.render.BlockBox.layout(BlockBox.java:732)
at org.xhtmlrenderer.layout.InlineBoxing.layoutInlineBlockContent(InlineBoxing.java:393)
at org.xhtmlrenderer.layout.InlineBoxing.layoutContent(InlineBoxing.java:290)
at org.xhtmlrenderer.render.BlockBox.layoutInlineChildren(BlockBox.java:938)
at org.xhtmlrenderer.render.BlockBox.layoutChildren(BlockBox.java:919)
at org.xhtmlrenderer.render.BlockBox.layout(BlockBox.java:802)
at org.xhtmlrenderer.render.BlockBox.layout(BlockBox.java:732)
at org.xhtmlrenderer.layout.BlockBoxing.layoutBlockChild0(BlockBoxing.java:293)
at org.xhtmlrenderer.layout.BlockBoxing.layoutBlockChild(BlockBoxing.java:271)
at org.xhtmlrenderer.layout.BlockBoxing.layoutContent(BlockBoxing.java:89)
at org.xhtmlrenderer.render.BlockBox.layoutChildren(BlockBox.java:922)
at org.xhtmlrenderer.render.BlockBox.layout(BlockBox.java:802)
at org.xhtmlrenderer.render.BlockBox.layout(BlockBox.java:732)
at org.xhtmlrenderer.layout.BlockBoxing.layoutBlockChild0(BlockBoxing.java:293)
at org.xhtmlrenderer.layout.BlockBoxing.layoutBlockChild(BlockBoxing.java:271)
at org.xhtmlrenderer.layout.BlockBoxing.layoutContent(BlockBoxing.java:89)
at org.xhtmlrenderer.render.BlockBox.layoutChildren(BlockBox.java:922)
at org.xhtmlrenderer.render.BlockBox.layout(BlockBox.java:802)
at org.xhtmlrenderer.render.BlockBox.layout(BlockBox.java:732)
at org.xhtmlrenderer.layout.BlockBoxing.layoutBlockChild0(BlockBoxing.java:293)
at org.xhtmlrenderer.layout.BlockBoxing.layoutBlockChild(BlockBoxing.java:271)
at org.xhtmlrenderer.layout.BlockBoxing.layoutContent(BlockBoxing.java:89)
at org.xhtmlrenderer.render.BlockBox.layoutChildren(BlockBox.java:922)
at org.xhtmlrenderer.render.BlockBox.layout(BlockBox.java:802)
at org.xhtmlrenderer.render.BlockBox.layout(BlockBox.java:732)
at org.xhtmlrenderer.pdf.ITextRenderer.layout(ITextRenderer.java:209)
at es.msssi.gepsa.utils.PDFUtils.crearPDFHTML(PDFUtils.java:37)
at es.msssi.gepsa.utils.PlantillaPSA.rellenarPlantilla(PlantillaPSA.java:456)
at es.msssi.gepsa.web.controller.DocumentoPSAController.generaDocumentoPSA(DocumentoPSAController.java:269)
at es.msssi.gepsa.web.controller.PsaController.generaDocumentoPSA(PsaController.java:454)
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.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:781)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:721)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:943)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:868)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:301)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)
at es.msssi.common.seguridad.GenericExisteAtributoFilter.doFilter(GenericExisteAtributoFilter.java:158)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)
at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:119)
at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:324)
at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:460)
at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:103)
at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:171)
at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)
at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:163)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3748)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3714)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2283)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2182)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1491)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:263)
... 1 more
【问题讨论】：
-
尝试提供更多信息：您是否在生产中收到一些错误消息？日志在说什么？究竟是什么问题？ PDF 未生成或已生成但无法打开？我们应该进一步猜测吗？
-
啊，我忘了回答你的问题：不，他们没有相同的配置，因为如果他们有，它会工作......
-
错误只是我放置的行中的空指针异常（renderer.layout（））。尝试使 html 模板适合页面配置时，似乎“某事”失败了。我尝试搜索 weblogic 10.3.6 是否存在页面配置问题，但没有结果。不会生成 PDF。我将尝试更好地解释这些步骤：1）获取数据库信息以制作 PDF ---> 确定 2）用该信息填充 html 模板 ---> 确定 3）将模板转换为页面布局 -- >NOK（空指针异常调用布局）
-
好的，但是还有太多的缺失。你说那行有一个NPE。所以渲染器是空的？还是在布局方法中抛出异常？只需在此处发布您的堆栈跟踪。你如何设置/初始化你的渲染器？该代码部分丢失了......抱歉，我们无法提供这些信息
-
非常感谢您的回答和耐心。我在主要问题中添加了堆栈跟踪。渲染器不为空，因为 renderer.setDocument() 工作正常，布局方法中抛出 NPE，渲染器被初始化只是调用默认构造函数。正如我所说，相同的代码在本地工作，在 PRE 中工作。我想知道这可能是服务器提供的库的问题，但我不能更准确....非常感谢您的时间
标签： weblogic-10.x flying-saucer