使用 Apache POI 更改图像布局或在 DOCX 中换行

Question

我以编程方式将图像粘贴到 docx 中。但结果布局不适合我。面临缺乏文件。 我需要更改图像换行（布局）。例如现在我有这个：

但是想要这个：

UPD1：我所做的：遍历段落，然后遍历运行并找到带有特殊书签的特定运行。在这次运行中，我添加了图片：

XWPFPicture pic =  run.addPicture(
        new ByteArrayInputStream(picSource),
        Document.PICTURE_TYPE_PNG,
        "pic",
        Units.toEMU(100),
        Units.toEMU(30));

UPD2：在这个类中调查了一些有趣的东西：

org.openxmlformats.schemas.drawingml.x2006.wordprocessingDrawing.CTAnchor

方法setWrapTight(CTWrapTight var1)。可能是它。仍然不知道如何将它应用到我的代码中。

UPD3：最后我想到了这个（currentRun - 用我们的图片运行）：

    CTWrapTight ctWrapTight = currentRun.getCTR().getDrawingList().get(0).addNewAnchor().addNewWrapTight();
 CTWrapPath ctWrapPath = ctWrapTight.addNewWrapPolygon();

 CTPoint2D ctStart = ctWrapPath.addNewStart();
 ctStart.setX(0L);
 ctStart.setY(0L);

 CTPoint2D ctLineTo1 = ctWrapPath.addNewLineTo();
 CTPoint2D ctLineTo2 = ctWrapPath.addNewLineTo();
 CTPoint2D ctLineTo3 = ctWrapPath.addNewLineTo();

 ctLineTo1.setX(21384L);
 ctLineTo1.setY(20520L);

 ctLineTo2.setX(21384L);
 ctLineTo2.setY(0L);

 ctLineTo3.setX(0L);
 ctLineTo3.setY(0L);

ctWrapTight.setWrapText(STWrapText.BOTH_SIDES);

但是当我尝试打开它时它会分解文档：

我们很抱歉。我们无法打开文档，因为我们发现了一个问题 它的内容。

依赖是：

<dependency>
        <groupId>org.apache.poi</groupId>
        <artifactId>poi-ooxml</artifactId>
        <version>3.17</version>
    </dependency>
    <dependency>
        <groupId>org.apache.poi</groupId>
        <artifactId>poi-ooxml-schemas</artifactId>
        <version>3.17</version>
    </dependency>
    <dependency>
        <groupId>org.apache.poi</groupId>
        <artifactId>ooxml-schemas</artifactId>
        <version>1.3</version>
    </dependency>

Answer 1

虽然您已经找到要使用的正确类 - CTAnchor 和后继类 - 还需要考虑 XML Schema definition of anchor。这表明除了定义包装的那些之外，还需要更多的职责元素。因此，逐个使用org.openxmlformats.schemas.drawingml.x2006，您可能正在编写页面代码。对于此类问题，我首选的解决方案是提供XML，其中所有需要的元素都由一些变量更新。然后可以解析这个XML，得到需要的对象。

例子：

import java.io.FileOutputStream;
import java.io.FileInputStream;
import java.io.InputStream;

import org.apache.poi.xwpf.usermodel.*;

import org.apache.poi.util.Units;

import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTDrawing;
import org.openxmlformats.schemas.drawingml.x2006.main.CTGraphicalObject;
import org.openxmlformats.schemas.drawingml.x2006.wordprocessingDrawing.CTAnchor;

public class WordInsertPictures {

 private static CTAnchor getAnchorWithGraphic(CTGraphicalObject graphicalobject, 
                                              String drawingDescr, int width, int height,
                                              int left, int top) throws Exception {

  String anchorXML = 
   "<wp:anchor xmlns:wp=\"http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing\" "
  +"simplePos=\"0\" relativeHeight=\"0\" behindDoc=\"1\" locked=\"0\" layoutInCell=\"1\" allowOverlap=\"1\">"
  +"<wp:simplePos x=\"0\" y=\"0\"/>"
  +"<wp:positionH relativeFrom=\"column\"><wp:posOffset>"+left+"</wp:posOffset></wp:positionH>"
  +"<wp:positionV relativeFrom=\"paragraph\"><wp:posOffset>"+top+"</wp:posOffset></wp:positionV>"
  +"<wp:extent cx=\""+width+"\" cy=\""+height+"\"/>"
  +"<wp:effectExtent l=\"0\" t=\"0\" r=\"0\" b=\"0\"/>"
  +"<wp:wrapTight wrapText=\"bothSides\">"
  +"<wp:wrapPolygon edited=\"0\">"
  +"<wp:start x=\"0\" y=\"0\"/>"
  +"<wp:lineTo x=\"0\" y=\"21600\"/>" //Square polygon 21600 x 21600 leads to wrap points in fully width x height
  +"<wp:lineTo x=\"21600\" y=\"21600\"/>"// Why? I don't know. Try & error ;-).
  +"<wp:lineTo x=\"21600\" y=\"0\"/>"
  +"<wp:lineTo x=\"0\" y=\"0\"/>"
  +"</wp:wrapPolygon>"
  +"</wp:wrapTight>"
  +"<wp:docPr id=\"1\" name=\"Drawing 0\" descr=\""+drawingDescr+"\"/><wp:cNvGraphicFramePr/>"
  +"</wp:anchor>";

  CTDrawing drawing = CTDrawing.Factory.parse(anchorXML);
  CTAnchor anchor = drawing.getAnchorArray(0);
  anchor.setGraphic(graphicalobject);
  return anchor;  
 }

 public static void main(String[] args) throws Exception {

  XWPFDocument document = new XWPFDocument();
  XWPFParagraph paragraph = document.createParagraph();
  XWPFRun run = paragraph.createRun();

  run.setText("The picture in line: ");

  InputStream in = new FileInputStream("samplePict.jpeg");
  run.addPicture(in, Document.PICTURE_TYPE_JPEG, "samplePict.jpeg", Units.toEMU(100), Units.toEMU(30));
  in.close();  

  run.setText(" text after the picture.");

  paragraph = document.createParagraph();

  run = paragraph.createRun();
  in = new FileInputStream("samplePict.jpeg");
  run.addPicture(in, Document.PICTURE_TYPE_JPEG, "samplePict.jpeg", Units.toEMU(100), Units.toEMU(30));
  in.close();  
  CTDrawing drawing = run.getCTR().getDrawingArray(0);
  CTGraphicalObject graphicalobject = drawing.getInlineArray(0).getGraphic();
  CTAnchor anchor = getAnchorWithGraphic(graphicalobject, "samplePict.jpeg", 
                                         Units.toEMU(100), Units.toEMU(30), 
                                         Units.toEMU(30), Units.toEMU(0));
  drawing.setAnchorArray(new CTAnchor[]{anchor});
  drawing.removeInline(0);

  run = paragraph.createRun();
  run.setText("The previous picture is anchored wrapTight. The previous picture is anchored wrapTight. The previous picture is anchored wrapTight. The previous picture is anchored wrapTight. The previous picture is anchored wrapTight. The previous picture is anchored wrapTight.");

  document.write(new FileOutputStream("WordInsertPictures.docx"));
  document.close();
 }
}