Java 使用POI 给Word添加水印

Maven 引入依赖

       
            org.apache.poi
            poi
            3.17
        

        
        
            org.apache.poi
            poi-ooxml
            3.17
        

Java 代码:

package com.daydayup.study001.watermark;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import org.apache.poi.xwpf.model.XWPFHeaderFooterPolicy;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.apache.poi.xwpf.usermodel.XWPFHeader;
import org.apache.poi.xwpf.usermodel.XWPFParagraph;
import org.apache.poi.xwpf.usermodel.XWPFRun;

public class WatermarkForWord {

    public static void main(String[] args) throws FileNotFoundException, IOException {
        XWPFDocument doc= new XWPFDocument();

          // the body content
          XWPFParagraph paragraph = doc.createParagraph();
          XWPFRun run=paragraph.createRun();  
          run.setText("The Body:");

          // create header-footer
          XWPFHeaderFooterPolicy headerFooterPolicy = doc.getHeaderFooterPolicy();
          if (headerFooterPolicy == null) headerFooterPolicy = doc.createHeaderFooterPolicy();

          // create default Watermark - fill color black and not rotated
          headerFooterPolicy.createWatermark("Watermark");

          // get the default header
          // Note: createWatermark also sets FIRST and EVEN headers 
          // but this code does not updating those other headers
          XWPFHeader header = headerFooterPolicy.getHeader(XWPFHeaderFooterPolicy.DEFAULT);
          paragraph = header.getParagraphArray(0);

          // get com.microsoft.schemas.vml.CTShape where fill color and rotation is set
          org.apache.xmlbeans.XmlObject[] xmlobjects = paragraph.getCTP().getRArray(0).getPictArray(0).selectChildren(
            new javax.xml.namespace.QName("urn:schemas-microsoft-com:vml", "shape"));

          if (xmlobjects.length > 0) {
           com.microsoft.schemas.vml.CTShape ctshape = (com.microsoft.schemas.vml.CTShape)xmlobjects[0];
           // set fill color
           ctshape.setFillcolor("#d8d8d8");
           // set rotation
           ctshape.setStyle(ctshape.getStyle() + ";rotation:315");
           //System.out.println(ctshape);
          }

          doc.write(new FileOutputStream("CreateWordHeaderFooterWatermark.docx"));
          doc.close();

    }

}
 

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