在 Java 中使用 apache poi 使​​用填充和线条格式化图片

Question

我正在使用 apache poi 3.15 的工作文件在 Excel 中插入图像，但我想向图像添加边框线，可以通过右键单击图像 --> 设置图片格式 --> 填充和线条 --> 线条 --> 实线来完成MS Office 中的 Line在 SO 和 apache 文档上搜索了很多，但不知道如何使用 poi 来实现这一点。按照我的代码

private void drawImageOnExcelSheetForGLOS(XSSFSheet sitePhotosSheet,
        int row1, int row2, int col1, int col2, String fileName) {
    try {

        InputStream is = new FileInputStream(fileName);
        byte[] bytes = IOUtils.toByteArray(is);
        int pictureIdx = sitePhotosSheet.getWorkbook().addPicture(bytes,Workbook.PICTURE_TYPE_JPEG);
        is.close();
        CreationHelper helper = sitePhotosSheet.getWorkbook().getCreationHelper();

        // Create the drawing patriarch. This is the top level container for
        // all shapes.
        Drawing drawing = sitePhotosSheet.createDrawingPatriarch();

        // add a picture shape
        ClientAnchor anchor = helper.createClientAnchor();
        anchor.setAnchorType( ClientAnchor.MOVE_AND_RESIZE );


        // set top-left corner of the picture,
        // subsequent call of Picture#resize() will operate relative to it
        anchor.setCol1(col1);
        anchor.setCol2(col2);
        anchor.setRow1(row1);
        anchor.setRow2(row2);

        drawing.createPicture(anchor, pictureIdx);

    } catch(Exception e) {
    }
}

我可以使用 XSSFSimpleShape 在图像周围绘制线条，但这不是我想要的，并且也尝试使用 setBorderXXX() 但这些边框或线条不会像使用 MS Office 设置时那样随图像移动。第一张图片显示了我得到的东西，第二张图片显示了我想要的东西

Answer 1

这可以通过使用 XSSFPicture 的 setLineXXX() 方法来实现，如下所示，

private void drawImageOnExcelSheetForGLOS(XSSFSheet sitePhotosSheet,
        int row1, int row2, int col1, int col2, String fileName) {
    try {

        InputStream is = new FileInputStream(fileName);
        byte[] bytes = IOUtils.toByteArray(is);
        int pictureIdx = sitePhotosSheet.getWorkbook().addPicture(bytes,Workbook.PICTURE_TYPE_JPEG);
        is.close();
        CreationHelper helper = sitePhotosSheet.getWorkbook().getCreationHelper();

        XSSFDrawing drawing = sitePhotosSheet.createDrawingPatriarch();

        ClientAnchor anchor = helper.createClientAnchor();
        anchor.setAnchorType( ClientAnchor.MOVE_AND_RESIZE );

        anchor.setCol1(col1);
        anchor.setCol2(col2);
        anchor.setRow1(row1);
        anchor.setRow2(row2);

        // setLineXXX() methods can be used to set line border to image
        XSSFPicture pic = drawing.createPicture(anchor, pictureIdx);
        // 0 indicates solid line
        pic.setLineStyle(0);
        // rgb color code for black line
        pic.setLineStyleColor(0, 0, 0);
        // double number for line width
        pic.setLineWidth(1.5);
    } catch(Exception e) {
        e.printStackTrace();
    }
}