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使用POI向word中添加图片的问题

2016-11-15 17:49 267 查看

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");
}

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标签： poi word 图片

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