如何将URL路径传递给inputStream

Question

public void insertImage(HSSFWorkbook workbook,HSSFSheet sheet){
        try {
            InputStream inputStream = new FileInputStream("\\img\\logo.png");
            byte[] imageBytes = IOUtils.toByteArray(inputStream);
            int pictureureIdx = workbook.addPicture(imageBytes, Workbook.PICTURE_TYPE_PNG);
            inputStream.close();
            CreationHelper helper = workbook.getCreationHelper();
            Drawing drawing = sheet.createDrawingPatriarch();
            ClientAnchor anchor = helper.createClientAnchor();
            anchor.setCol1(0);
            anchor.setRow1(0);
            Picture pict = drawing.createPicture(an`enter code here`chor, pictureureIdx);
            pict.resize(0.4);
        }catch (Exception e) {
            System.out.println(e);
        }
    }

这是我的code.Please代码，用于在excel文件中插入徽标图像。我想从网址传递路径，如"http://localhost:8080/Enertech/img/logo.png“如何重写上面的java帮助我。

Answer 1

你有没有试着从URL获取一个流？只需尝试更改这一行并检查。

InputStream input = new URL("http://localhost:8080/Enertech/img/logo.png").openStream();