使用POI往word插入图片
在POI4之后的版本，想在word中插入图片是比较简单的。
直接在指定段落paragraph中创建一个run，然后用addPic方法即可
Document doc = new XWPFDocument(new FileInputStream(new File("new.doc")));
XWPFParagraph paragraph = doc.getParagraphs(doc.getParagraphs().size() - 1);
XWPFRun run = paragraph.createRun();
run.addPicture(new FileInputStream(imgPath),
Document.PICTURE_TYPE_JPEG,
name,
Units.toEMU(400), Units.toEMU(400));但在POI3.X中，没有addPic方法，有createPicture方法，但是有缺陷，不可用，原因是3.X的POI代码实现createPicture的xml格式有问题，最终找到一个大神写的，原理就是重构XWPFDocument的createPicture方法
CustomXWPFDocument，重写Document类
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.apache.poi.xwpf.usermodel.XWPFPictureData;
import org.apache.poi.xwpf.usermodel.XWPFRun;
import org.apache.xmlbeans.XmlException;
import org.apache.xmlbeans.XmlToken;
import org.openxmlformats.schemas.drawingml.x2006.main.CTNonVisualDrawingProps;
import org.openxmlformats.schemas.drawingml.x2006.main.CTPositiveSize2D;
import org.openxmlformats.schemas.drawingml.x2006.wordprocessingDrawing.CTInline;
/**
*
* @功能描述: POI缺陷，无法正确的往word中插入图片，原因是XML没有正确生成
* 重写document类的createPicture，重写XML
* @名称: CustomXWPFDocument.java
* @路径 com.daimeng.util
* @作者 daimeng.fun
* @E-Mail sephy9527@qq.com
* @创建时间 2019年12月7日 上午12:02:26
* @version V1.0
*/
public class CustomXWPFDocument extends XWPFDocument{
public CustomXWPFDocument(InputStream in) throws IOException
{
super(in);
}
//POI3.7-3.9可用，但也无需用
public int getId(String blipId){
/*List<XWPFPictureData> list = getAllPictures();
for(int i = 0; i < list.size(); i ++){
XWPFPictureData data = list.get(i);
if(blipId.equals(data.getPackageRelationship().getId())){
return i;
}
}*/
return 0;
}
public void createPicture(String blipId,int id,XWPFRun run, int width, int height)
{
final int EMU = 9525;
width *= EMU;
height *= EMU;
//String blipId = getAllPictures().get(id).getPackageRelationship().getId();
//int id = getId(blipId);
CTInline inline = run.getCTR().addNewDrawing().addNewInline();
String picXml = "" +
"<a:graphic xmlns:a=\"http://schemas.openxmlformats.org/drawingml/2006/main\">" +
" <a:graphicData uri=\"http://schemas.openxmlformats.org/drawingml/2006/picture\">" +
" <pic:pic xmlns:pic=\"http://schemas.openxmlformats.org/drawingml/2006/picture\">" +
" <pic:nvPicPr>" +
" <pic:cNvPr id=\"" + id + "\" name=\"Generated\"/>" +
" <pic:cNvPicPr/>" +
" </pic:nvPicPr>" +
" <pic:blipFill>" +
" <a:blip r:embed=\"" + blipId + "\" xmlns:r=\"http://schemas.openxmlformats.org/officeDocument/2006/relationships\"/>" +
" <a:stretch>" +
" <a:fillRect/>" +
" </a:stretch>" +
" </pic:blipFill>" +
" <pic:spPr>" +
" <a:xfrm>" +
" <a:off x=\"0\" y=\"0\"/>" +
" <a:ext cx=\"" + width + "\" cy=\"" + height + "\"/>" +
" </a:xfrm>" +
" <a:prstGeom prst=\"rect\">" +
" <a:avLst/>" +
" </a:prstGeom>" +
" </pic:spPr>" +
" </pic:pic>" +
" </a:graphicData>" +
"</a:graphic>";
//CTGraphicalObjectData graphicData = inline.addNewGraphic().addNewGraphicData();
XmlToken xmlToken = null;
try
{
xmlToken = XmlToken.Factory.parse(picXml);
}
catch(XmlException xe)
{
xe.printStackTrace();
}
inline.set(xmlToken);
//graphicData.set(xmlToken);
inline.setDistT(0);
inline.setDistB(0);
inline.setDistL(0);
inline.setDistR(0);
CTPositiveSize2D extent = inline.addNewExtent();
extent.setCx(width);
extent.setCy(height);
CTNonVisualDrawingProps docPr = inline.addNewDocPr();
docPr.setId(id);
docPr.setName("Picture " + id);
docPr.setDescr("Generated");
}
}doc需要用CustomXWPFDocument实例化
CustomXWPFDocument doc = new CustomXWPFDocument(new FileInputStream(new File("new.doc")));
String pid = doc.addPictureData(new FileInputStream(imgPath), Document.PICTURE_TYPE_JPEG);
doc.createPicture(pid,doc.getNextPicNameNumber(XWPFDocument.PICTURE_TYPE_JPEG),run, 400, 400);至此就可以往word中加入图片了