本篇内容介绍了“如何使用POI向word中添加图片”的有关知识，在实际案例的操作过程中，不少人都会遇到这样的困境，接下来就让小编带领大家学习一下如何处理这些情况吧！希望大家仔细阅读，能够学有所成！
使用POI向word中添加图片
由于一次需要向word中添加多张图片，其中有图片存在重复，一开始使用的创建图片代码为：
xwpf.createPicture(xwpf.getAllPictures().size()-1, 80, 30,pargraph);public void createPicture(int id, int width, int height,XWPFParagraph paragraph) { final int EMU = 9525; width *= EMU; height *= EMU; String blipId = getAllPictures().get(id).getPackageRelationship().getId(); CTInline inline = paragraph.createRun().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); 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"); }上述代码对于重复的图片流不会第二次生成id，因此会造成第二次出现的图片被后续图片覆盖的情况。
因此，修改为如下处理方式，解决了重复图片的问题：
String ind = xwpf.addPictureData(is, XWPFDocument.PICTURE_TYPE_GIF);int id = xwpf.getNextPicNameNumber(XWPFDocument.PICTURE_TYPE_GIF);xwpf.createPicture(ind, id, 80, 30,pargraph);public void createPicture(String blipId, int id, int width, int height,XWPFParagraph paragraph) { final int EMU = 9525; width *= EMU; height *= EMU; //String blipId = getAllPictures().get(id).getPackageRelationship().getId(); CTInline inline = paragraph.createRun().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); 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"); }使用POI给Word添加水印
Maven 引入依赖
<dependency> <groupId>org.apache.poi</groupId> <artifactId>poi</artifactId> <version>3.17</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooxml</artifactId> <version>3.17</version> </dependency>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(); }}“如何使用POI向word中添加图片”的内容就介绍到这里了，感谢大家的阅读。如果想了解更多行业相关的知识可以关注编程网网站，小编将为大家输出更多高质量的实用文章！
