java利用poi添加多张图片到word

超、凢脫俗 2024-02-17 21:17 59阅读 0赞

poi提供的方法是有添加图片到word的，但是并不是兼容所有word。所以需要重写他的方法

第一步，导入jar

<dependency>
                <groupId>org.apache.poi</groupId>
                <artifactId>poi</artifactId>
                <version>3.15</version>
        </dependency>
            <dependency>
                <groupId>org.apache.poi</groupId>
                <artifactId>poi-ooxml</artifactId>
                <version>3.15</version>
            </dependency>

第二步，写了一个工具类，重写poi里面的方法的

import java.io.IOException;  
    import java.io.InputStream;  
    
    import org.apache.poi.openxml4j.opc.OPCPackage;  
    import org.apache.poi.xwpf.usermodel.XWPFDocument;  
    import org.apache.poi.xwpf.usermodel.XWPFParagraph;  
    import org.apache.xmlbeans.XmlException;  
    import org.apache.xmlbeans.XmlToken;  
    import org.openxmlformats.schemas.drawingml.x2006.main.CTNonVisualDrawingProps;  
    import org.openxmlformats.schemas.drawingml.x2006.main.CTPositiveSize2D;  
    import org.openxmlformats.schemas.drawingml.x2006.wordprocessingDrawing.CTInline;  
    
    /**  
     * @author POI 导出图片bug修复 
     *   
     */    
    public class CustomXWPFDocument extends XWPFDocument {
            
        public CustomXWPFDocument(InputStream in) throws IOException {    
            super(in);    
        }    
    
        /**  
         *   
         */    
        public CustomXWPFDocument() {    
            super();    
            // TODO Auto-generated constructor stub     
        }    
    
        /**  
         * @param pkg  
         * @throws IOException  
         */    
        public CustomXWPFDocument(OPCPackage pkg) throws IOException {    
            super(pkg);    
            // TODO Auto-generated constructor stub     
        }  // picAttch 图片后面追加的字符串 可以是空格  
        public void createPicture(XWPFParagraph paragraph,int id, int width, int height,String picAttch) {    
            final int EMU = 9525;    
            width *= EMU;    
            height *= EMU;    
            String blipId = getAllPictures().get(id).getPackageRelationship()    
                    .getId();    
    
            CTInline inline = paragraph.createRun().getCTR()    
                    .addNewDrawing().addNewInline();    
            paragraph.createRun().setText(picAttch);  
            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);    
            // graphicData.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("图片" + id);    
            docPr.setDescr("");    
        }    
    }

第三步，上核心代码

//新建word文档
    CustomXWPFDocument document=new CustomXWPFDocument();
    document.addPictureData(inputStream, XWPFDocument.PICTURE_TYPE_JPEG);   document.createPicture(document.createParagraph(),document.getAllPictures().size()-1, 400, 400,"    ");

说明：inputStream代表你要放入word的流

最后

//把word文档写到文件中
    File newfile=new File("newfile.docx");
    FileOutputStream fos = new FileOutputStream(newfile); 
    document.write(fos);

虽然写出来了，但是感觉自己还停留在会用，不了解其中为什么要这么用的含义，研究的不深