如何調整Apache POI中的圖像環繞樣式

Question

我必須在文本後面創建一個帶有圖像的Word文檔（docx）。我設法與該代碼添加圖像：

XWPFParagraph p = doc.createParagraph(); 
XWPFRun r = p.createRun(); 
String imgFile = "image.png"; 
XWPFPicture picture = r.addPicture(new FileInputStream(imgFile), XWPFDocument.PICTURE_TYPE_PNG, imgFile, Units.pixelToEMU(855), Units.pixelToEMU(776)); 

但我可以找到任何地方如何給它發送文本（有點像一個背景圖像或水印）的後面。

Answer 1

試用波紋完整的代碼..

import java.io.File; 
import java.io.IOException; 

import org.docx4j.XmlUtils; 
import org.docx4j.jaxb.Context; 
import org.docx4j.openpackaging.packages.WordprocessingMLPackage; 
import org.docx4j.openpackaging.parts.PartName; 
import org.docx4j.openpackaging.parts.WordprocessingML.HeaderPart; 
import org.docx4j.openpackaging.parts.WordprocessingML.ImagePngPart; 
import org.docx4j.openpackaging.parts.relationships.RelationshipsPart.AddPartBehaviour; 
import org.docx4j.relationships.Relationship; 
import org.docx4j.wml.Hdr; 
import org.docx4j.wml.ObjectFactory; 
import org.docx4j.wml.SectPr; 


public class Watermark 
{ 


    static String DOCX_OUT; 

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

     // The image to add 
     imageFile = new File("d:\\1\\1.png"); 

     // Save it to 
     DOCX_OUT = "d:\\1\\output.docx"; 

     WatermarkPicture sample = new WatermarkPicture(); 
     sample.addWaterMark(); 
    } 

    static ObjectFactory factory = Context.getWmlObjectFactory(); 
    static File imageFile; 

    private byte[] image;  
    private WordprocessingMLPackage wordMLPackage; 

    public void addWaterMark() throws Exception 
    { 

     image = this.getImage(); 

     wordMLPackage = WordprocessingMLPackage 
       .createPackage(); 

     // A watermark is defined in the headers, which are in turn set in sectPr 
     wordMLPackage.getMainDocumentPart().getContents().getBody().setSectPr(
       createSectPr()); 

     File f = new File(DOCX_OUT); 
     wordMLPackage.save(f); 

    } 

    private SectPr createSectPr() throws Exception { 

     String openXML = "<w:sectPr xmlns:w=\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\" xmlns:r=\"http://schemas.openxmlformats.org/officeDocument/2006/relationships\">" 

       // Word adds the background image in each of 3 header parts 
       + "<w:headerReference r:id=\"" + createHeaderPart("even").getId() + "\" w:type=\"even\"/>" 
       + "<w:headerReference r:id=\"" + createHeaderPart("default").getId() + "\" w:type=\"default\"/>" 
       + "<w:headerReference r:id=\"" + createHeaderPart("first").getId() + "\" w:type=\"first\"/>" 

       // Word adds empty footer parts when you create a watermark, but its not necessary 

//    + "<w:footerReference r:id=\"rId9\" w:type=\"even\"/>" 
//    + "<w:footerReference r:id=\"rId10\" w:type=\"default\"/>" 
//    + "<w:footerReference r:id=\"rId12\" w:type=\"first\"/>" 

       + "<w:pgSz w:h=\"15840\" w:w=\"12240\"/>" 
       + "<w:pgMar w:bottom=\"1440\" w:footer=\"708\" w:gutter=\"0\" w:header=\"708\" w:left=\"1440\" w:right=\"1440\" w:top=\"1440\"/>" 
       + "<w:cols w:space=\"708\"/>" 
       + "<w:docGrid w:linePitch=\"360\"/>" 
      +"</w:sectPr>"; 

     return (SectPr)XmlUtils.unmarshalString(openXML); 

    } 

    private Relationship createHeaderPart(String nameSuffix) throws Exception { 

     HeaderPart headerPart = new HeaderPart(new PartName("/word/header-" + nameSuffix + ".xml")); 
     Relationship rel = wordMLPackage.getMainDocumentPart().addTargetPart(headerPart); 

     setHdr(headerPart); 

     return rel; 
    } 

    private void setHdr(HeaderPart headerPart) throws Exception { 

     ImagePngPart imagePart = new ImagePngPart(new PartName("/media/background.png")); 
     imagePart.setBinaryData(image); 
     Relationship rel = headerPart.addTargetPart(imagePart, AddPartBehaviour.REUSE_EXISTING); // the one image is shared by the 3 header parts 

     String openXML = "<w:hdr mc:Ignorable=\"w14 wp14\" xmlns:v=\"urn:schemas-microsoft-com:vml\" xmlns:w=\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\" xmlns:o=\"urn:schemas-microsoft-com:office:office\" xmlns:mc=\"http://schemas.openxmlformats.org/markup-compatibility/2006\" xmlns:r=\"http://schemas.openxmlformats.org/officeDocument/2006/relationships\">" 
       + "<w:p>" 
        + "<w:pPr>" 
         + "<w:pStyle w:val=\"Header\"/>" 
        +"</w:pPr>" 
        + "<w:r>" 
         + "<w:rPr>" 
          + "<w:noProof/>" 
         +"</w:rPr>" 
         + "<w:pict>" 
          + "<v:shapetype coordsize=\"21600,21600\" filled=\"f\" id=\"_x0000_t75\" o:preferrelative=\"t\" o:spt=\"75\" path=\"m@4@5l@4@11@9@11@9@5xe\" stroked=\"f\">" 
           + "<v:stroke joinstyle=\"miter\"/>" 
           + "<v:formulas>" 
            + "<v:f eqn=\"if lineDrawn pixelLineWidth 0\"/>" 
            + "<v:f eqn=\"sum @0 1 0\"/>" 
            + "<v:f eqn=\"sum 0 0 @1\"/>" 
            + "<v:f eqn=\"prod @2 1 2\"/>" 
            + "<v:f eqn=\"prod @3 21600 pixelWidth\"/>" 
            + "<v:f eqn=\"prod @3 21600 pixelHeight\"/>" 
            + "<v:f eqn=\"sum @0 0 1\"/>" 
            + "<v:f eqn=\"prod @6 1 2\"/>" 
            + "<v:f eqn=\"prod @7 21600 pixelWidth\"/>" 
            + "<v:f eqn=\"sum @8 21600 0\"/>" 
            + "<v:f eqn=\"prod @7 21600 pixelHeight\"/>" 
            + "<v:f eqn=\"sum @10 21600 0\"/>" 
           +"</v:formulas>" 
           + "<v:path gradientshapeok=\"t\" o:connecttype=\"rect\" o:extrusionok=\"f\"/>" 
           + "<o:lock aspectratio=\"t\" v:ext=\"edit\"/>" 
          +"</v:shapetype>" 
          + "<v:shape id=\"WordPictureWatermark835936646\" o:allowincell=\"f\" o:spid=\"_x0000_s2050\" style=\"position:absolute;margin-left:0;margin-top:0;width:467.95pt;height:615.75pt;z-index:-251657216;mso-position-horizontal:center;mso-position-horizontal-relative:margin;mso-position-vertical:center;mso-position-vertical-relative:margin\" type=\"#_x0000_t75\">" 
           + "<v:imagedata blacklevel=\"22938f\" gain=\"19661f\" o:title=\"docx4j-logo\" r:id=\"" + rel.getId() + "\"/>" 
          +"</v:shape>" 
         +"</w:pict>" 
        +"</w:r>" 
       +"</w:p>" 
      +"</w:hdr>"; 

      Hdr hdr = (Hdr)XmlUtils.unmarshalString(openXML); 

      headerPart.setJaxbElement(hdr); 

     } 

    private byte[] getImage() throws IOException { 

     // Our utility method wants that as a byte array 
     java.io.InputStream is = new java.io.FileInputStream(imageFile); 
     long length = imageFile.length();  
     // You cannot create an array using a long type. 
     // It needs to be an int type. 
     if (length > Integer.MAX_VALUE) { 
      System.out.println("File too large!!"); 
     } 
     byte[] bytes = new byte[(int)length]; 
     int offset = 0; 
     int numRead = 0; 
     while (offset < bytes.length 
       && (numRead=is.read(bytes, offset, bytes.length-offset)) >= 0) { 
      offset += numRead; 
     } 
     // Ensure all the bytes have been read in 
     if (offset < bytes.length) { 
      System.out.println("Could not completely read file "+imageFile.getName()); 
     } 
     is.close(); 

     return bytes; 
    } 


} 

希望這可以幫助你！ 謝謝快樂編碼！