【发布时间】：2021-08-01 10:19:58
【问题描述】：
我正在使用 apache poi 创建 word 文档。在我的项目结束时，我想将 word 文档转换为 pdf 文件。为此，我正在使用 itext 库，但我得到了这样的 nullpointerexception。
13:11:30,144 SEVERE [javax.enterprise.resource.webcontainer.jsf.context] (default task-6) fr.opensagres.poi.xwpf.converter.core.XWPFConverterException: java.lang.NullPointerException
at fr.opensagres.poi.xwpf.converter.pdf.PdfConverter.doConvert(PdfConverter.java:71)
at fr.opensagres.poi.xwpf.converter.pdf.PdfConverter.doConvert(PdfConverter.java:39)
at fr.opensagres.poi.xwpf.converter.core.AbstractXWPFConverter.convert(AbstractXWPFConverter.java:46)
at com.utc.pw.ui.TestWSV2500View.createTestWS(TestWSV2500View.java:6273)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.sun.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:181)
at com.sun.el.parser.AstValue.invoke(AstValue.java:289)
at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:304)
at org.jboss.weld.module.web.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)
at org.jboss.weld.module.web.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)
at org.jboss.weld.module.web.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)
at org.jboss.weld.module.web.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)
at javax.faces.event.MethodExpressionActionListener.processAction(MethodExpressionActionListener.java:126)
at javax.faces.event.ActionEvent.processListener(ActionEvent.java:72)
at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:490)
at javax.faces.component.UICommand.broadcast(UICommand.java:211)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:847)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1395)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:58)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:76)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:177)
at javax.faces.webapp.FacesServlet.executeLifecyle(FacesServlet.java:707)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:451)
at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:89)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at com.utc.pw.filter.UserFilter.doFilter(UserFilter.java:52)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.omnifaces.filter.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:124)
at org.omnifaces.filter.HttpFilter.doFilter(HttpFilter.java:108)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at io.opentracing.contrib.jaxrs2.server.SpanFinishingFilter.doFilter(SpanFinishingFilter.java:55)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:68)
at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:132)
at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at org.wildfly.extension.undertow.deployment.GlobalRequestControllerHandler.handleRequest(GlobalRequestControllerHandler.java:68)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292)
at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81)
at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138)
at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135)
at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
at org.wildfly.extension.undertow.security.SecurityContextThreadSetupAction.lambda$create$0(SecurityContextThreadSetupAction.java:105)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1502)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1502)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1502)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1502)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1502)
at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272)
at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104)
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:364)
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:830)
at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1982)
at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486)
at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1377)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NullPointerException
at fr.opensagres.poi.xwpf.converter.core.utils.XWPFTableUtil.getGridColList(XWPFTableUtil.java:184)
at fr.opensagres.poi.xwpf.converter.core.utils.XWPFTableUtil.computeColWidths(XWPFTableUtil.java:117)
at fr.opensagres.poi.xwpf.converter.core.XWPFDocumentVisitor.visitTable(XWPFDocumentVisitor.java:898)
at fr.opensagres.poi.xwpf.converter.core.XWPFDocumentVisitor.visitBodyElements(XWPFDocumentVisitor.java:235)
at fr.opensagres.poi.xwpf.converter.core.XWPFDocumentVisitor.start(XWPFDocumentVisitor.java:183)
at fr.opensagres.poi.xwpf.converter.pdf.PdfConverter.doConvert(PdfConverter.java:57)
... 82 more
我正在使用这个库
- fr.opensagres.poi.xwpf.converter.core-2.0.1.jar
- fr.opensagres.poi.xwpf.converter.pdf-2.0.1.jar
- fr.opensagres.xdocreport.itext.extension-2.0.1.jar
- itextpdf-5.5.0.jar
- poi-3.16
- ooxml-schemas-1.4.jar
也是我这样的创建代码
new File(System.getProperty("jboss.server.data.dir"), "corrolog/TestWS/" ).mkdir();
FileOutputStream out = new FileOutputStream(System.getProperty("jboss.server.data.dir")+"/corrolog/TestWS/"+strSO+" Test Workscope "+revision+".docx");
document.write(out);
PdfOptions options=null;
OutputStream outPDF = new FileOutputStream(new File(System.getProperty("jboss.server.data.dir")+"/corrolog/TestWS/"+strSO+" Test Workscope "+revision+".pdf"));
PdfConverter.getInstance().convert(document, outPDF, options);
document.close();
out.close();
我不明白为什么它会给我 nullpointerexception。 word文档创建成功但是pdf文件出现nullpointerexception。
更新
我的建表代码
//Table1
XWPFTable table1=document.createTable();
table1.getCTTbl().addNewTblPr().addNewTblW().setW(BigInteger.valueOf(10750));
table1.getCTTbl().addNewTblGrid().addNewGridCol().setW(BigInteger.valueOf(3100));
table1.getCTTbl().addNewTblGrid().addNewGridCol().setW(BigInteger.valueOf(7650));
table1.getCTTbl().getTblPr().getTblBorders().getRight().setSz(BigInteger.valueOf(12));
table1.getCTTbl().getTblPr().getTblBorders().getTop().setSz(BigInteger.valueOf(12));
table1.getCTTbl().getTblPr().getTblBorders().getLeft().setSz(BigInteger.valueOf(12));
table1.getCTTbl().getTblPr().getTblBorders().getBottom().setSz(BigInteger.valueOf(12));
table1.getCTTbl().getTblPr().getTblBorders().getBottom().setColor("00b0f0");
table1.getCTTbl().getTblPr().getTblBorders().getRight().setColor("00b0f0");
table1.getCTTbl().getTblPr().getTblBorders().getLeft().setColor("00b0f0");
table1.getCTTbl().getTblPr().getTblBorders().getTop().setColor("00b0f0");
table1.getCTTbl().getTblPr().getTblBorders().getTop().setVal(STBorder.THICK);
table1.getCTTbl().getTblPr().getTblBorders().getBottom().setVal(STBorder.THICK);
table1.getCTTbl().getTblPr().getTblBorders().getRight().setVal(STBorder.THICK);
table1.getCTTbl().getTblPr().getTblBorders().getLeft().setVal(STBorder.THICK);
table1.setInsideHBorder(XWPFBorderType.THICK, 12, 0, "00b0f0");
table1.setInsideVBorder(XWPFBorderType.THICK, 12, 0, "00b0f0");
XWPFTableRow row0=table1.getRow(0);
XWPFTableRow row1=table1.createRow();
//Row0_Cell0
XWPFTableCell cell0=row0.getCell(0);
CTTblWidth width_cell0 = cell0.getCTTc().addNewTcPr().addNewTcW();
width_cell0.setType(STTblWidth.DXA);
width_cell0.setW(BigInteger.valueOf(3100));
cell0.removeParagraph(0);
cell0.getCTTc().addNewTcPr().addNewShd().setFill("daeef3");
XWPFParagraph paragraph_cell_0=cell0.addParagraph();
paragraph_cell_0.setSpacingAfter(0);
paragraph_cell_0.setVerticalAlignment(TextAlignment.CENTER);
paragraph_cell_0.setAlignment(ParagraphAlignment.CENTER);
cell0.setVerticalAlignment(XWPFVertAlign.CENTER);
XWPFRun run_cell_0=paragraph_cell_0.createRun();
FileInputStream tec=new FileInputStream("C:\\Users\\ftk1187\\Desktop\\testWS-TEC.png");
run_cell_0.addPicture(tec, XWPFDocument.PICTURE_TYPE_PNG, "tec", Units.toEMU(54), Units.toEMU(31));
run_cell_0.addBreak();
run_cell_0.setText("TEC / ");
run_cell_0.setFontFamily("Arial");
run_cell_0.setFontSize(7);
run_cell_0.setBold(true);
XWPFRun run_cell0_1=paragraph_cell_0.createRun();
run_cell0_1.setText("TURKISH ENGINE CENTER");
run_cell0_1.setFontFamily("Arial");
run_cell0_1.setFontSize(7);
run_cell0_1.setItalic(true);
run_cell0_1.setBold(true);
mergeCellVertically(table1, 0, 0, 1);
tec.close();
//Row0_Cell1
row0.addNewTableCell();
XWPFTableCell cell1=row0.getCell(1);
cell1.getCTTc().addNewTcPr().addNewShd().setFill("daeef3");
cell1.removeParagraph(0);
CTTblWidth width_cell1= cell1.getCTTc().addNewTcPr().addNewTcW();
width_cell1.setType(STTblWidth.DXA);
width_cell1.setW(BigInteger.valueOf(7650));
XWPFParagraph paragraph_cell_1=cell1.addParagraph();
paragraph_cell_1.setSpacingBefore(100);
paragraph_cell_1.setSpacingAfter(75);
paragraph_cell_1.setVerticalAlignment(TextAlignment.CENTER);
paragraph_cell_1.setAlignment(ParagraphAlignment.CENTER);
cell1.setVerticalAlignment(XWPFVertAlign.CENTER);
XWPFRun run_cell1_0=paragraph_cell_1.createRun();
run_cell1_0.setText("ENGINE TEST WORKSCOPE");
run_cell1_0.setBold(true);
run_cell1_0.setFontFamily("Arial");
run_cell1_0.setFontSize(16);
//Row1_Cell0
XWPFTableCell cell3=row1.getCell(0);
cell3.getCTTc().addNewTcPr().addNewShd().setFill("daeef3");
//Row1_Cell1
XWPFTableCell cell2=row1.getCell(1);
cell2.removeParagraph(0);
cell2.getCTTc().addNewTcPr().addNewShd().setFill("daeef3");
XWPFParagraph paragraph_cell_2=cell2.addParagraph();
paragraph_cell_2.setSpacingAfter(50);
paragraph_cell_2.setVerticalAlignment(TextAlignment.CENTER);
paragraph_cell_2.setAlignment(ParagraphAlignment.CENTER);
cell2.setVerticalAlignment(XWPFVertAlign.CENTER);
XWPFRun run_cell2_0=paragraph_cell_2.createRun();
run_cell2_0.setText("MODEL "+outgoingModel+" / ESN : "+esn);
run_cell2_0.setBold(true);
run_cell2_0.setFontFamily("Arial");
run_cell2_0.setFontSize(16);
【问题讨论】：
-
@AxelRichter 我用 XDocReport 进行了尝试，但在 fr.opensagres.poi.xwpf.converter.core.utils.XWPFTableUtil.getGridColList(XWPFTableUtil.java: 184）
-
您还没有完全阅读我的回答。这与使用
PdfConverter与XDocReport无关。就是apache poi创建的默认*.docx文档缺少PdfConverter需要的一些内容。在你的情况下：表格必须有一个表格网格集。 -
@AxelRichter 好的，我添加了表格网格集，现在我没有收到任何错误，但我还有一个问题。我正在将我的 word 文档和 pdf 文档截图添加到我的问题中。为什么pdf文件看起来不像word文档？
-
在使用低级
org.openxmlformats.schemas.wordprocessingml.x2006.main.*类时，您需要知道自己在做什么。第一：您正在一个表格中创建两个表格网格。它必须是table1.getCTTbl().addNewTblGrid().addNewGridCol().setW(BigInteger.valueOf(3100)); table1.getCTTbl().getTblGrid().addNewGridCol().setW(BigInteger.valueOf(7650));。第二次注意getTblGrid。同样对于cell0，您添加了两个表格单元格属性元素。它必须是cell0.getCTTc().getTcPr().addNewShd().setFill("daeef3");。注意getTcPr，而不是再次添加新的。
标签： itext apache-poi