Npoi XWPF Word 导出时插入图片无法显示

1. npoi中XWPFRun.AddPicture,各种尝试,各种看源代码,也无法将插入的图片显示出来,用RAR程序打开word查看Document.xml文件,提示xml文件错误.在网上找到java的poi的解决办法,自定义Pic元素.

       int EMU = 9525;
   
               width *= EMU;
   
               height *= EMU;
   
   
   
               var run = doc.CreateParagraph().CreateRun();
   
               CT_Inline inline = run.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\" xmlns:a=\"http://schemas.openxmlformats.org/drawingml/2006/main\">"
   
                       + "         <pic:nvPicPr>" + "            <pic:cNvPr id=\""
   
                       + "0"
   
                       + "\" name=\"Generated\"/>"
   
                       + "            <pic:cNvPicPr/>"
   
                       + "         </pic:nvPicPr>"
   
                       + "         <pic:blipFill>"
   
                       + "            <a:blip r:embed=\""
   
                       + id
   
                       + "\" 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>";
   
   
   
               CT_GraphicalObjectData graphicData = inline.graphic.AddNewGraphicData();
   
               graphicData.uri = "http://schemas.openxmlformats.org/drawingml/2006/picture";
   
   
   
               XmlDocument xmlDoc = new XmlDocument();
   
               try {
   
                   xmlDoc.LoadXml(picXml);
   
                   var element = xmlDoc.DocumentElement;
   
                   graphicData.AddPicElement(element);
   
   
   
               } catch (XmlException xe) {
   
               }
   
   
   
               CT_PositiveSize2D extent = inline.AddNewExtent();
   
               extent.cx = width;
   
               extent.cy = height;
   
   
   
               CT_NonVisualDrawingProps docPr = inline.AddNewDocPr();
   
               docPr.id = 1;
   
               docPr.name = "图片" + id;

    

2. 需要强调的是:

     <pic:pic xmlns:pic=\"http://schemas.openxmlformats.org/drawingml/2006/picture\" xmlns:a=\"http://schemas.openxmlformats.org/drawingml/2006/main\">"

   这行代码中需要把xmlns:a定义出来,因为标签中含有a的使用,需要定义这个命名空间的本地名称.否则在创建元素时会抛出异常.

3. 下边的这行代码也是必不可少的.

4.     graphicData.uri = "http://schemas.openxmlformats.org/drawingml/2006/picture";

    

5. 源代码中的方法,不知道为什么创建PIC标签的内容的代码,都没能序列化出来.可能是我还没有找到正确的使用方法,或者是不够完善吧.

测试的源代码CS文件:

    public class XWPFInsertPicture

    {

        public void WordIndertPicTest()

        {

            var wordDoc = new XWPFDocument();

            var picAbsolutePath = @"D:\Test.png";

            if (File.Exists(picAbsolutePath)) {

                var picID = wordDoc.AddPictureData(new FileStream(picAbsolutePath, FileMode.Open), (int)PictureType.PNG);

                CreatePicture(wordDoc, picID, 100, 100);

            }



            var outputPath = Path.Combine(@"D:\", Guid.NewGuid().ToString() + ".docx");

            var writeStream = new FileStream(outputPath, FileMode.Create);

            wordDoc.Write(writeStream);

            writeStream.Close();

        }



        public static void CreatePicture(XWPFDocument doc, string id, int width, int height)

        {

            int EMU = 9525;

            width *= EMU;

            height *= EMU;



            var run = doc.CreateParagraph().CreateRun();

            CT_Inline inline = run.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\" xmlns:a=\"http://schemas.openxmlformats.org/drawingml/2006/main\">"

                    + "         <pic:nvPicPr>" + "            <pic:cNvPr id=\""

                    + "0"

                    + "\" name=\"Generated\"/>"

                    + "            <pic:cNvPicPr/>"

                    + "         </pic:nvPicPr>"

                    + "         <pic:blipFill>"

                    + "            <a:blip r:embed=\""

                    + id

                    + "\" 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>";



            CT_GraphicalObjectData graphicData = inline.graphic.AddNewGraphicData();

            graphicData.uri = "http://schemas.openxmlformats.org/drawingml/2006/picture";



            XmlDocument xmlDoc = new XmlDocument();

            try {

                xmlDoc.LoadXml(picXml);

                var element = xmlDoc.DocumentElement;

                graphicData.AddPicElement(element);



            } catch (XmlException xe) {

            }



            CT_PositiveSize2D extent = inline.AddNewExtent();

            extent.cx = width;

            extent.cy = height;



            CT_NonVisualDrawingProps docPr = inline.AddNewDocPr();

            docPr.id = 1;

            docPr.name = "图片" + id;

        }

    }

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