poi 3.14下报错：
org.apache.poi.xwpf.converter.core.XWPFConverterException: java.lang.NullPointerException at org.apache.poi.xwpf.converter.xhtml.XHTMLConverter.convert(XHTMLConverter.java:77) at org.apache.poi.xwpf.converter.xhtml.XHTMLConverter.doConvert(XHTMLConverter.java:63) at org.apache.poi.xwpf.converter.xhtml.XHTMLConverter.doConvert(XHTMLConverter.java:38) at org.apache.poi.xwpf.converter.core.AbstractXWPFConverter.convert(AbstractXWPFConverter.java:61) at com.landy.tools.Test.docxToHtml(Test.java:34) at com.landy.tools.Test.main(Test.java:44) Caused by: java.lang.NullPointerException at org.apache.poi.xwpf.converter.core.styles.run.RunUnderlineValueProvider.getValue(RunUnderlineValueProvider.java:40) at org.apache.poi.xwpf.converter.core.styles.XWPFStylesDocument.getUnderline(XWPFStylesDocument.java:687) at org.apache.poi.xwpf.converter.xhtml.internal.styles.CSSStylesDocument.createCSSStyle(CSSStylesDocument.java:296) at org.apache.poi.xwpf.converter.xhtml.internal.styles.CSSStylesDocument.createCSSStyle(CSSStylesDocument.java:249) at org.apache.poi.xwpf.converter.xhtml.internal.XHTMLMapper.visitRun(XHTMLMapper.java:248) at org.apache.poi.xwpf.converter.core.XWPFDocumentVisitor.visitRuns(XWPFDocumentVisitor.java:616) at org.apache.poi.xwpf.converter.core.XWPFDocumentVisitor.visitParagraphBody(XWPFDocumentVisitor.java:441) at org.apache.poi.xwpf.converter.core.XWPFDocumentVisitor.visitParagraph(XWPFDocumentVisitor.java:332) at org.apache.poi.xwpf.converter.core.XWPFDocumentVisitor.visitBodyElements(XWPFDocumentVisitor.java:247) at org.apache.poi.xwpf.converter.core.XWPFDocumentVisitor.start(XWPFDocumentVisitor.java:199) at org.apache.poi.xwpf.converter.xhtml.XHTMLConverter.convert(XHTMLConverter.java:73) ... 5 more
poi 3.9 报错：
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/poi/xwpf/usermodel/IRunBody at org.apache.poi.xwpf.converter.xhtml.XHTMLConverter.convert(XHTMLConverter.java:72) at org.apache.poi.xwpf.converter.xhtml.XHTMLConverter.doConvert(XHTMLConverter.java:63) at org.apache.poi.xwpf.converter.xhtml.XHTMLConverter.doConvert(XHTMLConverter.java:38) at org.apache.poi.xwpf.converter.core.AbstractXWPFConverter.convert(AbstractXWPFConverter.java:61) at com.landy.tools.Test.docxToHtml(Test.java:34) at com.landy.tools.Test.main(Test.java:44) Caused by: java.lang.ClassNotFoundException: org.apache.poi.xwpf.usermodel.IRunBody at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:423) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) ... 6 more
原因是一样的：
通过调式定位，poi 类的源码不严谨造成；
package org.apache.poi.xwpf.converter.core.styles.run; import org.apache.poi.xwpf.converter.core.styles.XWPFStylesDocument; import org.apache.poi.xwpf.usermodel.UnderlinePatterns; import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTRPr; public class RunUnderlineValueProvider extends AbstractRunValueProvider<UnderlinePatterns>{ public static final RunUnderlineValueProvider INSTANCE = new RunUnderlineValueProvider(); @Override public UnderlinePatterns getValue( CTRPr rPr, XWPFStylesDocument stylesDocument){ return ( rPr != null && rPr.isSetU() ) ? UnderlinePatterns.valueOf( rPr.getU().getVal().intValue() ): null; } }
public class RunUnderlineValueProvider extends AbstractRunValueProvider<UnderlinePatterns>{ public static final RunUnderlineValueProvider INSTANCE = new RunUnderlineValueProvider(); @Override public UnderlinePatterns getValue( CTRPr rPr, XWPFStylesDocument stylesDocument){ // 注意返回时rPr.getU()!=null && rPr.getU().getVal()!=null 判空 return ( rPr != null && rPr.isSetU() && rPr.getU()!=null && rPr.getU().getVal()!=null) ? UnderlinePatterns.valueOf( rPr.getU().getVal().intValue() ): null; } }
这样就会覆盖掉源码（优先调用）
最终解决的办法是修改jar包版本，一定要对应上。
<dependency> <groupId>org.apache.poi</groupId> <artifactId>poi</artifactId> <version>3.10.1</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooxml-schemas</artifactId> <version>3.10.1</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooxml</artifactId> <version>3.10.1</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-scratchpad</artifactId> <version>3.9</version> </dependency> <dependency> <groupId>fr.opensagres.xdocreport</groupId> <artifactId>xdocreport</artifactId> <version>2.0.1</version> </dependency> <dependency> <groupId>fr.opensagres.xdocreport</groupId> <artifactId>fr.opensagres.xdocreport.document</artifactId> <version>2.0.1</version> </dependency> <dependency> <groupId>fr.opensagres.xdocreport</groupId> <artifactId>org.apache.poi.xwpf.converter.core</artifactId> <version>1.0.6</version> </dependency> <dependency> <groupId>fr.opensagres.xdocreport</groupId> <artifactId>org.apache.poi.xwpf.converter.pdf</artifactId> <version>1.0.6</version> </dependency> <dependency> <groupId>fr.opensagres.xdocreport</groupId> <artifactId>org.apache.poi.xwpf.converter.xhtml</artifactId> <version>1.0.6</version> </dependency>
