java.io.IOException：流在 PDFbox setValue 循环期间关闭
java.io.IOException: Stream closed During PDFbox setValue loop
所以我陷入了一个奇怪的境地，简单解释一下，我有一个网络表单，当填写时使用 PDFbox 填充 PDF 模板并将其保存在给定位置。现在该应用程序在我的 eclipse 环境中运行良好，但是当我 运行 它在测试 tomcat 服务器上时，它失败并显示以下内容：
ERROR c.j.h.controller.HomeController - I=0 fields=FullName{type: PDTextField value: null}
ERROR c.j.h.controller.HomeController - I=0 fields=FullName{type: PDTextField value: COSString{fsdf}}
ERROR c.j.h.controller.HomeController - I=1 fields=Address{type: PDTextField value: null}
ERROR o.s.b.web.support.ErrorPageFilter - Forwarding to error page from request [/save] due to exception [java.io.IOException: Stream closed]
java.lang.InternalError: java.io.IOException: Stream closed
at sun.util.locale.provider.BreakIteratorProviderImpl.getBreakInstance(BreakIteratorProviderImpl.java:178)
at sun.util.locale.provider.BreakIteratorProviderImpl.getLineInstance(BreakIteratorProviderImpl.java:106)
at java.text.BreakIterator.createBreakInstance(BreakIterator.java:571)
at java.text.BreakIterator.createBreakInstance(BreakIterator.java:553)
at java.text.BreakIterator.getBreakInstance(BreakIterator.java:544)
at java.text.BreakIterator.getLineInstance(BreakIterator.java:483)
at java.text.BreakIterator.getLineInstance(BreakIterator.java:470)
at org.apache.pdfbox.pdmodel.interactive.form.PlainText$Paragraph.getLines(PlainText.java:159)
at org.apache.pdfbox.pdmodel.interactive.form.PlainTextFormatter.format(PlainTextFormatter.java:182)
at org.apache.pdfbox.pdmodel.interactive.form.AppearanceGeneratorHelper.insertGeneratedAppearance(AppearanceGeneratorHelper.java:422)
at org.apache.pdfbox.pdmodel.interactive.form.AppearanceGeneratorHelper.setAppearanceContent(AppearanceGeneratorHelper.java:288)
at org.apache.pdfbox.pdmodel.interactive.form.AppearanceGeneratorHelper.setAppearanceValue(AppearanceGeneratorHelper.java:170)
at org.apache.pdfbox.pdmodel.interactive.form.PDTextField.constructAppearances(PDTextField.java:263)
at org.apache.pdfbox.pdmodel.interactive.form.PDTerminalField.applyChange(PDTerminalField.java:228)
at org.apache.pdfbox.pdmodel.interactive.form.PDTextField.setValue(PDTextField.java:218)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:108)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.springframework.boot.web.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:115)
at org.springframework.boot.web.support.ErrorPageFilter.access[=11=]0(ErrorPageFilter.java:59)
at org.springframework.boot.web.support.ErrorPageFilter.doFilterInternal(ErrorPageFilter.java:90)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.boot.web.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:108)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:218)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1087)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: Stream closed
at java.io.BufferedInputStream.getInIfOpen(BufferedInputStream.java:159)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:246)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:286)
at java.io.BufferedInputStream.read(BufferedInputStream.java:345)
at java.io.FilterInputStream.read(FilterInputStream.java:107)
at sun.util.locale.provider.RuleBasedBreakIterator.readFile(RuleBasedBreakIterator.java:462)
at sun.util.locale.provider.RuleBasedBreakIterator.readTables(RuleBasedBreakIterator.java:375)
at sun.util.locale.provider.RuleBasedBreakIterator.<init>(RuleBasedBreakIterator.java:321)
at sun.util.locale.provider.BreakIteratorProviderImpl.getBreakInstance(BreakIteratorProviderImpl.java:169)
... 76 common frames omitted
现在，如果您查看错误的顶部，您可以看到我创建的一些错误消息，以帮助确定哪里出了问题。
现在我的具体代码如下：
InputStream template = HomeController.class.getResourceAsStream("template");
PDDocument pdfDocument = PDDocument.load(template);
PDDocumentCatalog pdfCatalog = pdfDocument.getDocumentCatalog();
PDAcroForm acroForm = pdfCatalog.getAcroForm();
PDPageTree pages = pdfCatalog.getPages();
ArrayList<String> myObjectList = new ArrayList<String>();
List<PDField> fields = acroForm.getFields();
for(int i = 0; i< firstAidList.size(); i++) {
log.error("I="+ i + " " + "fields=" + fields.get(i));
fields.get(i).setValue(myObjectList.get(i));
log.error("I="+ i + " " + "fields=" + fields.get(i));
}
// Few more stuff done then I close
pdfDocument.close();
template.close();
基本上 myObjectList 是我从网络表单中获得的数据，fields 是我从我的 pdf 模板中获得的字段，在 for 循环中我只是设置它们 - 但如果你查看代码和第一条错误消息，尝试设置第二个值时出现问题。
因为它在我的 eclipse 但不是 tomcat 服务器（与 eclipse 分开）中工作，我的一个想法是在 tomcat 服务器上获得一些权限，但不知道如何 "prove" 它.
似乎解决方案是重新启动 tomcat 服务器。
与服务器 java 更新后 BreakIterator 的问题有关。
所以我陷入了一个奇怪的境地，简单解释一下，我有一个网络表单，当填写时使用 PDFbox 填充 PDF 模板并将其保存在给定位置。现在该应用程序在我的 eclipse 环境中运行良好，但是当我 运行 它在测试 tomcat 服务器上时，它失败并显示以下内容：
ERROR c.j.h.controller.HomeController - I=0 fields=FullName{type: PDTextField value: null}
ERROR c.j.h.controller.HomeController - I=0 fields=FullName{type: PDTextField value: COSString{fsdf}}
ERROR c.j.h.controller.HomeController - I=1 fields=Address{type: PDTextField value: null}
ERROR o.s.b.web.support.ErrorPageFilter - Forwarding to error page from request [/save] due to exception [java.io.IOException: Stream closed]
java.lang.InternalError: java.io.IOException: Stream closed
at sun.util.locale.provider.BreakIteratorProviderImpl.getBreakInstance(BreakIteratorProviderImpl.java:178)
at sun.util.locale.provider.BreakIteratorProviderImpl.getLineInstance(BreakIteratorProviderImpl.java:106)
at java.text.BreakIterator.createBreakInstance(BreakIterator.java:571)
at java.text.BreakIterator.createBreakInstance(BreakIterator.java:553)
at java.text.BreakIterator.getBreakInstance(BreakIterator.java:544)
at java.text.BreakIterator.getLineInstance(BreakIterator.java:483)
at java.text.BreakIterator.getLineInstance(BreakIterator.java:470)
at org.apache.pdfbox.pdmodel.interactive.form.PlainText$Paragraph.getLines(PlainText.java:159)
at org.apache.pdfbox.pdmodel.interactive.form.PlainTextFormatter.format(PlainTextFormatter.java:182)
at org.apache.pdfbox.pdmodel.interactive.form.AppearanceGeneratorHelper.insertGeneratedAppearance(AppearanceGeneratorHelper.java:422)
at org.apache.pdfbox.pdmodel.interactive.form.AppearanceGeneratorHelper.setAppearanceContent(AppearanceGeneratorHelper.java:288)
at org.apache.pdfbox.pdmodel.interactive.form.AppearanceGeneratorHelper.setAppearanceValue(AppearanceGeneratorHelper.java:170)
at org.apache.pdfbox.pdmodel.interactive.form.PDTextField.constructAppearances(PDTextField.java:263)
at org.apache.pdfbox.pdmodel.interactive.form.PDTerminalField.applyChange(PDTerminalField.java:228)
at org.apache.pdfbox.pdmodel.interactive.form.PDTextField.setValue(PDTextField.java:218)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:108)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.springframework.boot.web.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:115)
at org.springframework.boot.web.support.ErrorPageFilter.access[=11=]0(ErrorPageFilter.java:59)
at org.springframework.boot.web.support.ErrorPageFilter.doFilterInternal(ErrorPageFilter.java:90)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.boot.web.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:108)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:218)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1087)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: Stream closed
at java.io.BufferedInputStream.getInIfOpen(BufferedInputStream.java:159)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:246)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:286)
at java.io.BufferedInputStream.read(BufferedInputStream.java:345)
at java.io.FilterInputStream.read(FilterInputStream.java:107)
at sun.util.locale.provider.RuleBasedBreakIterator.readFile(RuleBasedBreakIterator.java:462)
at sun.util.locale.provider.RuleBasedBreakIterator.readTables(RuleBasedBreakIterator.java:375)
at sun.util.locale.provider.RuleBasedBreakIterator.<init>(RuleBasedBreakIterator.java:321)
at sun.util.locale.provider.BreakIteratorProviderImpl.getBreakInstance(BreakIteratorProviderImpl.java:169)
... 76 common frames omitted
现在，如果您查看错误的顶部，您可以看到我创建的一些错误消息，以帮助确定哪里出了问题。 现在我的具体代码如下：
InputStream template = HomeController.class.getResourceAsStream("template");
PDDocument pdfDocument = PDDocument.load(template);
PDDocumentCatalog pdfCatalog = pdfDocument.getDocumentCatalog();
PDAcroForm acroForm = pdfCatalog.getAcroForm();
PDPageTree pages = pdfCatalog.getPages();
ArrayList<String> myObjectList = new ArrayList<String>();
List<PDField> fields = acroForm.getFields();
for(int i = 0; i< firstAidList.size(); i++) {
log.error("I="+ i + " " + "fields=" + fields.get(i));
fields.get(i).setValue(myObjectList.get(i));
log.error("I="+ i + " " + "fields=" + fields.get(i));
}
// Few more stuff done then I close
pdfDocument.close();
template.close();
基本上 myObjectList 是我从网络表单中获得的数据，fields 是我从我的 pdf 模板中获得的字段，在 for 循环中我只是设置它们 - 但如果你查看代码和第一条错误消息，尝试设置第二个值时出现问题。
因为它在我的 eclipse 但不是 tomcat 服务器（与 eclipse 分开）中工作，我的一个想法是在 tomcat 服务器上获得一些权限，但不知道如何 "prove" 它.
似乎解决方案是重新启动 tomcat 服务器。
与服务器 java 更新后 BreakIterator 的问题有关。