如何傳遞到InputStream的URL路徑

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); 
     } 
    } 

這是我在Excel中插入file.I標誌形象Java代碼想從URL傳遞路徑，如「http://localhost:8080/Enertech/img/logo.png」 如何重寫上面code.Please幫助我。

Answer 1

您是否嘗試從網址獲取流？試着改變那一行並檢查。

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