如何在java中使用Apache

如何在java中使用Apache

本文介绍了如何在java中使用Apache POI XWPF将图片添加到.docx文档的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我使用 Java POI 3.7 创建了一个简单的 docx 文档.XWPF.然后,我添加了一张图片使用方法 XWPFDocument.addpicture(byte[] arg0, int arg1).

I've created a simple docx-Document, using Java POI 3.7. XWPF. Then, I added a picture byusing the Method XWPFDocument.addpicture(byte[] arg0, int arg1).

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("logo.jpg");
byte [] picbytes = IOUtils.toByteArray(pic);
docx.addPicture(picbytes, Document.PICTURE_TYPE_JPEG);

由于 docx 的文件大小增加,图片被物理地"添加到文档中;但它根本不显示在 MS Word 中.文档中似乎缺少对图片的引用.

Since file size of the docx grows, the picture was added "physically" to the document; but it is not displayed at all in MS Word. Seems like there is a reference to the picture missing in the document.

有什么方法可以做到这一点?apache POI 是如何处理图片的?网上哪里有更多的教程,几乎没有关于 XWPF 的文档或教程,它解释了段落、运行等的处理.

What's the way to do this? How is picture handling done with apache POI? And where are more tutorials on the web, there is nearly no documents or tutorials at all for XWPF, which explains handling of paragraphs, runs, etc.

我在这里发现的唯一一件事是:https://issues.apache.org/bugzilla/show_bug.cgi?id=49765 但它根本没有帮助.

The only thing I found about this is here: https://issues.apache.org/bugzilla/show_bug.cgi?id=49765 but it does not help at all.

非常感谢.

推荐答案

我知道这篇文章很旧,但我仍然发布了答案,以便所有正在搜索此答案的人都可以使用它.要在word文档中插入图片,您必须编写两个程序.第一个是:-

I know this post is very old but still I am posting the answer so that all those who are searching for this answer can use it.For inserting the picture in the word document you have to write two programs. The first one is :-

package org.word.POI;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.xwpf.usermodel.Document;
import org.apache.poi.xwpf.usermodel.XWPFDocument;

/*
Romesh Soni
[email protected]
*/

public class TestCustom
{

    public static void main(String []a) throws FileNotFoundException, IOException, InvalidFormatException
    {

        CustomXWPFDocument document = new CustomXWPFDocument(new FileInputStream(new File("C:\\Users\\amitabh\\Documents\\Apache POI\\Word File\\new.doc")));
        FileOutputStream fos = new FileOutputStream(new File("C:\\Users\\amitabh\\Documents\\Apache POI\\Word File\\new.doc"));

        String blipId = document.addPictureData(new FileInputStream(new File("C:\\Users\\amitabh\\Pictures\\pics\\3.jpg")), Document.PICTURE_TYPE_JPEG);

        System.out.println(document.getNextPicNameNumber(Document.PICTURE_TYPE_JPEG));

        //System.out.println(document.getNextPicNameNumber(Document.PICTURE_TYPE_JPEG));
        document.createPicture(blipId,document.getNextPicNameNumber(Document.PICTURE_TYPE_JPEG), 500, 500);


        document.write(fos);
        fos.flush();
        fos.close();

    }

}

现在我在这段代码中使用了CustomeXwPFDocument",你不会通过任何 jar 文件获得任何导入,因此你必须在你的包中添加另一个 .java 类.CustomXWPFDocument"类的代码如下:-

Now here I have used "CustomeXwPFDocument" in this code and you will not get any imports through any jar file so you have to add another .java class in your package. the code for "CustomXWPFDocument" class goes like this:-

package org.word.POI;

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");
    }
}

此程序使用 POI 3.9 jars.最好的网址是:-http://www.apache.org/dyn/closer.cgi/poi/release/bin/poi-bin-3.9-20121203.zip

Use POI 3.9 jars for this program. The best URL is:-http://www.apache.org/dyn/closer.cgi/poi/release/bin/poi-bin-3.9-20121203.zip

现在您可以起飞了.祝你好运.

Now you are ready to fly. Best of luck.

这篇关于如何在java中使用Apache POI XWPF将图片添加到.docx文档的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

08-03 23:12