这是我第一次使用Apache POI，我已经在本网站上提出了我要问的问题，但没有给出明确的答案，所以我别无选择，只能接受你的帮助。
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。我在这个程序中使用Apache POI。我在这里发布我的代码。
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();
}
}
我能够创建word文档文件，我也可以插入文本，但docx.addPicture(picbytes, Document.PICTURE_TYPE_JPEG);行给出了错误“add cast to docx”。我为这个程序添加了所有可能的罐子。对于这个错误，我在网上搜索，发现很多人都有类似的问题。 XWPFDocument引用的“addPicture”无法正常工作。请帮我解决这个问题。
答案 0 :(得分：13)
首先，我想指出apache poi提供的示例 - Link，即正确的方法是
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导致.docx文件无法读取的现有错误。它可能很快得到解决，在这种情况下，上述声明将完成工作。与此同时，还有一种解决方法。
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，通过添加如下图片来创建更新的文档： -
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();
您的构建路径中还应包含以下jar： -
POI-OOXML-模式
答案 1 :(得分：4)
I have used poi 3.10 to generate word doc and to insert a picture. you need 2 classes.. here is the example
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.List;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.util.Units;
import org.apache.poi.xwpf.model.XWPFHeaderFooterPolicy;
import org.apache.poi.xwpf.usermodel.Document;
import org.apache.poi.xwpf.usermodel.ParagraphAlignment;
import org.apache.poi.xwpf.usermodel.UnderlinePatterns;
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;
import org.apache.xmlbeans.XmlException;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.*;
public class ImageAttachmentInDocument {
/**
* @param args
* @throws IOException
*/
public static void main(String[] args) throws IOException {
DateFormat dateFormat = new SimpleDateFormat("dd-MMM-yyyy");
Calendar cal = Calendar.getInstance();
String date = dateFormat.format(cal.getTime());
// Create a document file
CustomXWPFDocument document = new CustomXWPFDocument();
// Adding a file
try {
// Working addPicture Code below...
XWPFParagraph paragraphX = document.createParagraph();
paragraphX.setAlignment(ParagraphAlignment.CENTER);
String blipId = paragraphX.getDocument().addPictureData(
new FileInputStream(new File("D://c2//WLB.jpg")),
Document.PICTURE_TYPE_JPEG);
System.out.println("4" + blipId);
System.out.println(document
.getNextPicNameNumber(Document.PICTURE_TYPE_JPEG));
document.createPicture(blipId,
document.getNextPicNameNumber(Document.PICTURE_TYPE_JPEG),
200, 75);
System.out.println("5");
} catch (InvalidFormatException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
// insert doc details
// Createa a para -1
XWPFParagraph paragraphOne = document.createParagraph();
paragraphOne.setAlignment(ParagraphAlignment.CENTER);
XWPFRun paragraphOneRunOne = paragraphOne.createRun();
paragraphOneRunOne.setBold(true);
paragraphOneRunOne.setFontSize(20);
paragraphOneRunOne.setFontFamily("Verdana");
paragraphOneRunOne.setColor("000070");
paragraphOneRunOne.setText("Daily Status Report");
// Createa a para -2
XWPFParagraph paragraphTwo = document.createParagraph();
paragraphTwo.setAlignment(ParagraphAlignment.CENTER);
XWPFRun paragraphTwoRunOne = paragraphTwo.createRun();
paragraphTwoRunOne.setFontSize(12);
paragraphTwoRunOne.setFontFamily("Verdana");
paragraphTwoRunOne.setColor("000070");
paragraphTwoRunOne.setText(date);
paragraphTwoRunOne.addBreak();
// Createa a para -3
XWPFParagraph paragraphThree = document.createParagraph();
paragraphThree.setAlignment(ParagraphAlignment.LEFT);
XWPFRun paragraphThreeRunOne = paragraphThree.createRun();
paragraphThreeRunOne.setFontSize(14);
paragraphThreeRunOne.setFontFamily("Verdana");
paragraphThreeRunOne.setColor("000070");
paragraphThreeRunOne.setText("5.30 AM PST");
paragraphThreeRunOne.addBreak();
// Createa a para -4
XWPFParagraph paragraphFour = document.createParagraph();
paragraphFour.setAlignment(ParagraphAlignment.LEFT);
XWPFRun paragraphFourRunOne = paragraphFour.createRun();
paragraphFourRunOne.setBold(true);
paragraphFourRunOne.setUnderline(UnderlinePatterns.SINGLE);
paragraphFourRunOne.setFontSize(10);
paragraphFourRunOne.setFontFamily("Verdana");
paragraphFourRunOne.setColor("000070");
paragraphFourRunOne.setText("ABCD");
// insert doc details end
XWPFParagraph paragraphFive = document.createParagraph();
paragraphFive.setAlignment(ParagraphAlignment.RIGHT);
XWPFRun paragraphFiveRunOne = paragraphFive.createRun();
paragraphFiveRunOne.addBreak();
paragraphFourRunOne.setBold(true);
paragraphFourRunOne.setUnderline(UnderlinePatterns.SINGLE);
paragraphFourRunOne.setFontSize(10);
paragraphFourRunOne.setFontFamily("Verdana");
paragraphFourRunOne.setColor("000070");
paragraphFourRunOne.setText("ABCD00000000000");
FileOutputStream outStream = null;
try {
double x = Math.random();
String fileName = "D:\\c2\\" + String.valueOf(x) + ".docx";
outStream = new FileOutputStream(fileName);
} catch (FileNotFoundException e) {
System.out.println("First Catch");
e.printStackTrace();
}
try {
document.write(outStream);
outStream.close();
} catch (FileNotFoundException e) {
System.out.println("Second Catch");
e.printStackTrace();
} catch (IOException e) {
System.out.println("Third Catch");
e.printStackTrace();
}
}
}
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() {
super();
}
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");
}
}