poi导出图片到excel ，导出成功但是没有图片，哪位大佬帮助一下

private void drawPictureInfoExcel(HSSFWorkbook wb, HSSFPatriarch patriarch, String pictureUrl, int rowIndex) {
// rowIndex代表当前行
try {
if (pictureUrl != null) {
DataInputStream dis = null;
dis = new DataInputStream(new FileInputStream (URLDecoder.decode("C:/logs/1565079224(1).jpg","UTF-8")));
byte[] data = new byte [1024];
dis.read(data);
// anchor主要用于设置图片的属性
HSSFClientAnchor anchor = new HSSFClientAnchor(0, 0, 1023, 255, (short) 1, rowIndex, (short) 1,rowIndex);
// Sets the anchor type （图片在单元格的位置）
// 0 = Move and size with Cells, 2 = Move but don't size with
// cells, 3 = Don't move or size with cells.
patriarch.createPicture(anchor, wb.addPicture(data, HSSFWorkbook.PICTURE_TYPE_JPEG));
}
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}

debug 图片二进制流是没问题的，但是导出到文档后就如下图所示了！
```![图片说明](https://img-ask.csdn.net/upload/201908/06/1565081165_443823.jpg)

两个错误：
1、图片长宽有问题，你看下 HSSFClientAnchor的构造方法里的参数，导致图片显示不全，可能你rowIndex=0，高度就没了。
2、图片的字节流不完整，你这样read，读取的不够全面，也只读了1M.
我贴上我写的demo，你参考一下

                        Workbook wb = new HSSFWorkbook();
            Sheet sheet = wb.createSheet("图片");
            Drawing patriarch = sheet.createDrawingPatriarch();
            if (pictureUrl != null) {
                //写入流
                ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
                FileInputStream fileInputStream = new FileInputStream(new File(pictureUrl));
                byte[] data = new byte[1024];
                int len = 0;
                while ((len = fileInputStream.read(data)) != -1) {
                    outputStream.write(data, 0, len);
                }
                int x = 1;
                int y = 1;
                int width = 6;
                int height = 10;
                // anchor主要用于设置图片的属性
                HSSFClientAnchor anchor = new HSSFClientAnchor(0, 0, 255, 0, (short) x, y, (short) (x + width), (y + height));
                patriarch.createPicture(anchor, wb.addPicture(outputStream.toByteArray(), HSSFWorkbook.PICTURE_TYPE_JPEG));
            }
            OutputStream os = new FileOutputStream(new File("E:\\test.xlsx"));
            wb.write(os);

看代码没什么问题，你拉伸一下 Excel 的这个单元格看看，是不是区域太小看不到图片呢？

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