这是我第一次在Apache POI上工作,而我将要问的问题已经在这个网站上被问到,但是没有给出明确的答案,所以我别无选择,只能用你的帮助.
我正在尝试编写一个java程序,它从一个文件夹中获取图像,并将该图像插入到word文档中.我正在使用Apache POI进行此程序.在这里我发贴我的代码
import java.io.*;
import java.util.*;
import org.apache.poi.util.IoUtils;
import org.apache.poi.xwpf.usermodel.*;
public class Imagesdoc
{
public static void main(String[] args) throws IOException
{
XWPFDocument docx = new XWPFDocument();
XWPFParagraph par = docx.createParagraph();
XWPFRun run = par.createRun();
run.setText("Hello,World. This is my first java generated docx-file. Have fun.");
run.setFontSize(13);
InputStream pic = new FileInputStream("C:\\Users\\amitabh\\Pictures\\pics\\pool.jpg");
byte [] picbytes = IoUtils.toByteArray(pic);
docx.addPicture(picbytes,Document.PICTURE_TYPE_JPEG);
FileOutputStream out = new FileOutputStream("C:\\Users\\amitabh\\Pictures\\pics\\simple1.docx");
docx.write(out);
out.close();
pic.close();
}
}
我可以创建word文档文件,我也可以插入文本docx.addPicture(picbytes,Document.PICTURE_TYPE_JPEG);线路给我的错误是“添加到docx”.我已经添加了这个程序的所有可能的罐子.对于这个错误,我搜索了整个网络,发现很多人都有类似的问题. XWPFDocument引用的“addPicture”不起作用.请帮我解决这个问题.
解决方法
首先,我想指出apache poi-
Link提供的例子,即正确的做法
doc.createParagraph().createRun().addPicture(new FileInputStream(imgFile),format,imgFile,Units.toEMU(200),Units.toEMU(200));
但是,在执行上述语句后,仍然存在一个现有的错误,导致.docx文件不可读.这可能会很快解决,在这种情况下,上述声明将会进行.与此同时,还有一个解决方案.
首先,生成没有任何图片的docx文件.然后将此类CustomXWPFDocument添加到您的包中.
import org.apache.poi.xwpf.usermodel.XWPFDocument;
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;
import java.io.IOException;
import java.io.InputStream;
public class CustomXWPFDocument extends XWPFDocument
{
public CustomXWPFDocument(InputStream in) throws IOException
{
super(in);
}
public void createPicture(String blipId,int id,int width,int height)
{
final int EMU = 9525;
width *= EMU;
height *= EMU;
//String blipId = getAllPictures().get(id).getPackageRelationship().getId();
CTInline inline = createParagraph().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);
//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("Picture " + id);
docPr.setDescr("Generated");
}
}
然后,通过添加您的图片创建更新的文档：
CustomXWPFDocument document = new CustomXWPFDocument(new FileInputStream(new File("C:\\Users\\Avarice\\Desktop\\doc1.docx")));
FileOutputStream fos = new FileOutputStream(new File("C:\\Users\\Avarice\\Desktop\\doc2.docx"));
String id = document.addPictureData(new FileInputStream(new File("C:\\Users\\Avarice\\Desktop\\thumbnail.jpg")),Document.PICTURE_TYPE_JPEG);
document.createPicture(id,document.getNextPicNameNumber(Document.PICTURE_TYPE_JPEG),64,64);
document.write(fos);
fos.flush();
fos.close();
您还应该在构建路径中具有以下jar：
POI-OOXML-模式
xmlbeans
dom4j