java word转html 报错org/apache/poi/xwpf/usermodel/IRunBody_讓丄帝愛伱的博客

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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>
                    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(X
				使用Apache poi解析word文档为html文件时出现空指针异常：
报错一：
org.apache.poi.xwpf.converter.core.XWPFConverterException: java.lang.NullPointerException
at org.apache.poi.xwpf.converter.xhtml.XHTMLConverter.convert(XHTMLC...
				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.a
				java.lang.NullPointerException空指针异常是像我一样新手很容易出现的问题，这个问题一般情况都是不细心的时候出现的，开始正文如下：
1、业务层面的错误：
　　a、没有写非空验证：if(list.size()>0 && !"".equal(list));
　　b、service方法引用注解的，有可能没有写注解（这个问题以前没有用代码模板工具经常出现）；
2、sql方法层面的错误：
　　a、mapper文件的dao路径引用路径写错，如下图（仅供参考）
				您可以在Apache官方网站上下载Apache POI的最新版本，其中包含org.apache.poi.xwpf.usermodel包。链接如下：
https://poi.apache.org/download.html
在下载页面上，您可以选择下载二进制版本或源代码版本。如果您不需要对源代码进行修改，则可以下载二进制版本。如果您想自己构建Jar文件，则可以下载源代码版本。
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                pip安装包报错Could not find a version that satisfies the requirement pymysql (from versions: none)
                    偶尔思考: 
                    确实 3解决了   这个问题是什么情况  不应该啊