一、复现：
poi版本：
<poi>3.17</poi>
<poi-ooxml>3.17</poi-ooxml>
<poi-ooxml-schemas>3.17</poi-ooxml-schemas>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>${poi}</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-scratchpad</artifactId>
<version>${poi}</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>${poi-ooxml}</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml-schemas</artifactId>
<version>${poi-ooxml-schemas}</version>
</dependency>
1、生成word：
2、通过libreoffice转换成pdf：
二、失败尝试：设置单元格长度宽度，设置表格居中均无效。
三、解决思路：
1、在word的单元格中，打几个空格，空格其实在红色指到的地方，然后转换成PDF后发现没问题了。
2、将成功和失败的文档进行对比：最后发现表格中格式不太一样
①成功的
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<xml-fragment xmlns:aink="http://schemas.microsoft.com/office/drawing/2016/ink" xmlns:am3d="http://schemas.microsoft.com/office/drawing/2017/model3d" xmlns:cx="http://schemas.microsoft.com/office/drawing/2014/chartex" xmlns:cx1="http://schemas.microsoft.com/office/drawing/2015/9/8/chartex" xmlns:cx2="http://schemas.microsoft.com/office/drawing/2015/10/21/chartex" xmlns:cx3="http://schemas.microsoft.com/office/drawing/2016/5/9/chartex" xmlns:cx4="http://schemas.microsoft.com/office/drawing/2016/5/10/chartex" xmlns:cx5="http://schemas.microsoft.com/office/drawing/2016/5/11/chartex" xmlns:cx6="http://schemas.microsoft.com/office/drawing/2016/5/12/chartex" xmlns:cx7="http://schemas.microsoft.com/office/drawing/2016/5/13/chartex" xmlns:cx8="http://schemas.microsoft.com/office/drawing/2016/5/14/chartex" xmlns:m="http://schemas.openxmlformats.org/officeDocument/2006/math" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:oel="http://schemas.microsoft.com/office/2019/extlst" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" xmlns:v="urn:schemas-microsoft-com:vml" xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main" xmlns:w10="urn:schemas-microsoft-com:office:word" xmlns:w14="http://schemas.microsoft.com/office/word/2010/wordml" xmlns:w15="http://schemas.microsoft.com/office/word/2012/wordml" xmlns:w16="http://schemas.microsoft.com/office/word/2018/wordml" xmlns:w16cex="http://schemas.microsoft.com/office/word/2018/wordml/cex" xmlns:w16cid="http://schemas.microsoft.com/office/word/2016/wordml/cid" xmlns:w16du="http://schemas.microsoft.com/office/word/2023/wordml/word16du" xmlns:w16sdtdh="http://schemas.microsoft.com/office/word/2020/wordml/sdtdatahash" xmlns:w16se="http://schemas.microsoft.com/office/word/2015/wordml/symex" xmlns:wne="http://schemas.microsoft.com/office/word/2006/wordml" xmlns:wp="http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing" xmlns:wp14="http://schemas.microsoft.com/office/word/2010/wordprocessingDrawing" xmlns:wpc="http://schemas.microsoft.com/office/word/2010/wordprocessingCanvas" xmlns:wpg="http://schemas.microsoft.com/office/word/2010/wordprocessingGroup" xmlns:wpi="http://schemas.microsoft.com/office/word/2010/wordprocessingInk" xmlns:wps="http://schemas.microsoft.com/office/word/2010/wordprocessingShape">
<w:tblPr>
<w:tblW w:type="auto" w:w="0"/>
<w:tblInd w:type="dxa" w:w="10"/>
<w:tblBorders>
<w:top w:color="auto" w:space="0" w:sz="0" w:val="single"/>
<w:left w:color="auto" w:space="0" w:sz="0" w:val="single"/>
<w:bottom w:color="auto" w:space="0" w:sz="0" w:val="single"/>
<w:right w:color="auto" w:space="0" w:sz="0" w:val="single"/>
<w:insideH w:color="auto" w:space="0" w:sz="0" w:val="single"/>
<w:insideV w:color="auto" w:space="0" w:sz="0" w:val="single"/>
</w:tblBorders>
<w:tblCellMar>
<w:left w:type="dxa" w:w="10"/>
<w:right w:type="dxa" w:w="10"/>
</w:tblCellMar>
<w:tblLook w:firstColumn="0" w:firstRow="0" w:lastColumn="0" w:lastRow="0" w:noHBand="0" w:noVBand="0" w:val="0000"/>
</w:tblPr>
<w:tblGrid>
<w:gridCol w:w="26"/>
</w:tblGrid>
<w:tr w14:paraId="77529834" w14:textId="77777777" w:rsidR="0005540F">
<w:tblPrEx>
<w:tblCellMar>
<w:top w:type="dxa" w:w="0"/>
<w:bottom w:type="dxa" w:w="0"/>
</w:tblCellMar>
</w:tblPrEx>
<w:tc>
<w:tcPr>
<w:tcW w:type="auto" w:w="0"/>
</w:tcPr>
<w:p w14:paraId="56EDAEAA" w14:textId="1DDD1BD7" w:rsidR="0005540F" w:rsidRDefault="001E39EF">
<w:pPr>
<w:rPr>
<w:rFonts w:hint="eastAsia"/>
</w:rPr>
</w:pPr>
<w:r>
<w:rPr>
<w:rFonts w:hint="eastAsia"/>
</w:rPr>
<w:t xml:space="preserve"/>
</w:r>
</w:p>
</w:tc>
</w:tr>
</xml-fragment>
②失败的
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<xml-fragment xmlns:main="http://schemas.openxmlformats.org/wordprocessingml/2006/main">
<main:tblPr>
<main:tblW main:type="auto" main:w="0"/>
<main:tblBorders>
<main:top main:val="single"/>
<main:left main:val="single"/>
<main:bottom main:val="single"/>
<main:right main:val="single"/>
<main:insideH main:val="single"/>
<main:insideV main:val="single"/>
</main:tblBorders>
</main:tblPr>
<main:tr>
<main:tc>
<main:p/>
</main:tc>
</main:tr>
</xml-fragment>
四、解决方案：设置一下样式，自己画的table放入如下方法
private static void setTableStyle(XWPFTable table) {
CTTbl ctTbl = table.getCTTbl();
CTTblPr tblPr = ctTbl.getTblPr();
if (tblPr == null) {
tblPr = ctTbl.addNewTblPr();
}
CTTblWidth tblWidth = tblPr.getTblW();
if (tblWidth == null) {
tblWidth = tblPr.addNewTblW();
}
tblWidth.setType(STTblWidth.AUTO);
tblWidth.setW(BigInteger.ZERO);
CTTblGrid tblGrid = ctTbl.getTblGrid();
if (tblGrid == null) {
tblGrid = ctTbl.addNewTblGrid();
CTTblGridCol ctTblGridCol = tblGrid.addNewGridCol();
ctTblGridCol.setW(BigInteger.valueOf(9000));
}
}
五、效果：表格拉宽了。（居中代码就从其他地方抄一下吧，文章很多的）
