Requirement description
Insert the image when word exports, and the image floats above the text instead of embedded
poi-tl native insertion picture
poi-tl renders the picture, using the addPicture method, there is a piece of code in this method: CTInline inline = (); means that the image is converted to inline type by default, that is, the element in the line
Solution Custom image rendering plug-in
1. Customize MyPictureRenderPolicy
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/**
* Custom image rendering
*/
public class MyPictureRenderPolicy extends AbstractRenderPolicy<Object> {
@Override
protected boolean validate(Object data) {
if (null == data) {
return false;
} else if (data instanceof PictureRenderData) {
return null != ((PictureRenderData) data).getPictureSupplier();
} else {
return true;
}
}
@Override
public void doRender(RenderContext<Object> context) throws Exception {
((), wrapper(()));
}
@Override
protected void afterRender(RenderContext<Object> context) {
(context, false);
}
@Override
protected void reThrowException(RenderContext<Object> context, Exception e) {
("Render picture " + () + " error: {}", ());
String alt = "";
if (() instanceof PictureRenderData) {
alt = ((PictureRenderData) ()).getAltMeta();
}
().setText(alt, 0);
}
private static PictureRenderData wrapper(Object object) {
return object instanceof PictureRenderData ? (PictureRenderData) object : (()).fitSize().create();
}
public static class Helper {
public static void renderPicture(XWPFRun run, PictureRenderData picture) throws Exception {
Supplier<byte[]> supplier = ();
byte[] imageBytes = (byte[]) ();
if (null == imageBytes) {
throw new IllegalStateException("Can't read picture byte arrays!");
} else {
PictureType pictureType = ();
if (null == pictureType) {
pictureType = (imageBytes);
}
if (null == pictureType) {
throw new RenderException("PictureRenderData must set picture type!");
} else {
PictureStyle style = ();
if (null == style) {
style = new PictureStyle();
}
int width = ();
int height = ();
if (pictureType == ) {
imageBytes = (imageBytes, (float) width, (float) height);
pictureType = ;
}
if (!isSetSize(style)) {
BufferedImage original = (imageBytes);
width = ();
height = ();
if (() == ) {
BodyContainer bodyContainer = (((IBodyElement) ()).getBody());
int pageWidth = UnitUtils.twips2Pixel(((IBodyElement) ()));
if (width > pageWidth) {
double ratio = (double) pageWidth / (double) width;
width = pageWidth;
height = (int) ((double) height * ratio);
}
}
}
InputStream stream = new ByteArrayInputStream(imageBytes);
Throwable var25 = null;
try {
align = ();
if (null != align && () instanceof XWPFParagraph) {
((XWPFParagraph) ()).setAlignment((() + 1));
}
(stream, (), "Generated", (width), (height));
//XWPFRunWrapper wrapper = new XWPFRunWrapper(run, false);
CTDrawing drawing = ().getDrawingArray(0);
CTGraphicalObject graphicalobject = (0).getGraphic();
//Get the newly inserted image and add CTAnchor. Set floating attributes. Delete the inline attributes. CTAnchor anchor = getAnchorWithGraphic(graphicalobject, "Generated",
(width), (height),//Picture size (270), (-70), false);//Relative to the current paragraph position, the left offset of the existing content of the paragraph needs to be calculated.
(new CTAnchor[]{anchor});//Add floating attribute (0);//Delete the in-line attribute } catch (Throwable var20) {
var25 = var20;
throw var20;
} finally {
if (stream != null) {
if (var25 != null) {
try {
();
} catch (Throwable var19) {
(var19);
}
} else {
();
}
}
}
}
}
}
}
private static boolean isSetSize(PictureStyle style) {
return (() != 0 || () != 0) && () == ;
}
/**
* @param ctGraphicalObject Image Data
* @param deskFileName Image description
* @param width
* @param height
* @param leftOffset Horizontal offset left
* @param topOffset vertical offset top
* @param behind above the text, below the text
* @return
* @throws Exception
*/
public static CTAnchor getAnchorWithGraphic(CTGraphicalObject ctGraphicalObject,
String deskFileName, int width, int height,
int leftOffset, int topOffset, boolean behind) {
String anchorXML =
"<wp:anchor xmlns:wp=\"/drawingml/2006/wordprocessingDrawing\" "
+ "simplePos=\"0\" relativeHeight=\"0\" behindDoc=\"" + ((behind) ? 1 : 0) + "\" locked=\"0\" layoutInCell=\"1\" allowOverlap=\"1\">"
+ "<wp:simplePos x=\"0\" y=\"0\"/>"
+ "<wp:positionH relativeFrom=\"column\">"
+ "<wp:posOffset>" + leftOffset + "</wp:posOffset>"
+ "</wp:positionH>"
+ "<wp:positionV relativeFrom=\"paragraph\">"
+ "<wp:posOffset>" + topOffset + "</wp:posOffset>" +
"</wp:positionV>"
+ "<wp:extent cx=\"" + width + "\" cy=\"" + height + "\"/>"
+ "<wp:effectExtent l=\"0\" t=\"0\" r=\"0\" b=\"0\"/>"
+ "<wp:wrapNone/>"
+ "<wp:docPr id=\"1\" name=\"Drawing 0\" descr=\"" + deskFileName + "\"/><wp:cNvGraphicFramePr/>"
+ "</wp:anchor>";
CTDrawing drawing = null;
try {
drawing = (anchorXML);
} catch (XmlException e) {
();
}
CTAnchor anchor = (0);
(ctGraphicalObject);
return anchor;
}
}
2. Test
This content automatically adds the image to the end of the word
import ;
import ;
import ;
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import ;
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import ;
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import ;
/**
* Data processing - add pictures at the end of the document
*
* @author:
* @date:
* @description:
*/
public class PoiWordTest3 {
public static void main(String[] args) throws IOException {
//The data to be written to the template Map<String, Object> exampleData = new HashMap<>();
("image1", ("src/main/resources/").size(120, 120).create());
FileInputStream inputStream = new FileInputStream("src/main/resources/");
XWPFDocument doc = new XWPFDocument(inputStream);
List<XWPFParagraph> docParagraphs = ();
if ((docParagraphs)) {
//The last paragraph XWPFParagraph paragraph = (() - 1);
XWPFRun run = ();
("{{%image1}} "); //poi-tl required template
} else {
//Add paragraph XWPFParagraph paragraph = ();
XWPFRun run = ();
("{{%image1}} "); //poi-tl required template }
// Used to process word files and upload File tempFileUpload = null; //Upload temporary files FileOutputStream tempFileOutputStreamUpload = null; //Upload temporary file output stream FileInputStream tempFileInputStreamUpload = null; //Upload temporary file input stream //Temporary file output stream tempFileUpload = ("wordTempUpload", ".docx");
tempFileOutputStreamUpload = new FileOutputStream(tempFileUpload);
(tempFileOutputStreamUpload);
tempFileInputStreamUpload = new FileInputStream(tempFileUpload);
/*************************** Register the plugin as a new tag type ******************************************/
ConfigureBuilder builder = ();
('%',new MyPictureRenderPolicy());//Register plugin as new tag type XWPFTemplate template = (tempFileInputStreamUpload,()).render(exampleData);
//File output stream FileOutputStream out = new FileOutputStream("src/main/resources/");
(out);
();
();
();
}
}
refer to
Java uses poi-tl to set the word image surround to float above the text
Java poi settings to create a word image as an upper and lower surround and its position
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