当我使用java将多个图像插入word时无法附加word文档答案

【问题标题】：Not able to append word document when I am inserting multiple image into word using java当我使用java将多个图像插入word时无法附加word文档
【发布时间】：2016-09-20 20:54:21
【问题描述】：

我使用以下代码拍摄屏幕快照并保存到 word 文件中。此代码用作按钮.. 但是当我获取屏幕截图时，它会替换现有文件.. 我怎样才能附加这个..请建议提前致谢。 :)

private void btnmanActionPerformed(java.awt.event.ActionEvent evt) {
    setVisible(false);

    if (btnman.getText().equals("Quick ScreenShot")) {

        try {
            Calendar now = Calendar.getInstance();
            Robot robot = new Robot();
            Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
            Rectangle captureRect = new Rectangle(0, 0, 1430, 840);
            BufferedImage screenFullImage = robot.createScreenCapture(captureRect);

            ImageIO.write(screenFullImage, "JPG", new File(path.getText() + formatter.format(now.getTime()) + ".jpg"));
            img = path.getText() + formatter.format(now.getTime()) + ".jpg";
            System.out.println(img);
            setVisible(true);
        } catch (Exception es) {
            System.out.println("not done");
        }
    } else {

        try {
            Calendar now = Calendar.getInstance();
            Robot robot = new Robot();
            Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
            Rectangle captureRect = new Rectangle(0, 0, 1400, 850);
            BufferedImage screenFullImage = robot.createScreenCapture(captureRect);

            ImageIO.write(screenFullImage, "JPG", new File("E:\\" + formatter.format(now.getTime()) + ".jpg"));
            img = "E:\\" + formatter.format(now.getTime()) + ".jpg";
            System.out.println(img);
            setVisible(true);
        } catch (Exception es) {
            System.out.println("not done");
        }


        XWPFDocument doc = new XWPFDocument();

        XWPFParagraph title = doc.createParagraph();
        XWPFRun run = title.createRun();
        run.setText(path.getText());
        run.setBold(true);
        title.setAlignment(ParagraphAlignment.CENTER);
        try {
            is = new FileInputStream(img);

            //run.addBreak();
            run.addPicture(is, XWPFDocument.PICTURE_TYPE_JPEG, img, Units.toEMU(500), Units.toEMU(600));

            //is.close();
            System.out.println(img);
            System.out.print(path.getText());

            FileOutputStream fos = new FileOutputStream(path.getText());


            doc.write(fos);
            fos.close();
            System.out.println("Enterd successfully");

        } catch (Exception es) {
            System.err.println("es");
        }


    }
}

【问题讨论】：

标签： java apache-poi

【解决方案1】：

它会覆盖文件而不是追加，因为您每次都在创建一个新的（空的）XWPFDocument

XWPFDocument doc = new XWPFDocument();

并使用相同的（我假设的）路径保存它。

FileOutputStream fos = new FileOutputStream(path.getText());
doc.write(fos);

所以它最终替换了文件。

尝试改用：

XWPFDocument doc = new XWPFDocument(new FileInputStream(path.getText()));

如果之前的文档已经存在，则打开它。

【讨论】：

非常感谢 Alex，它非常需要。