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我遇到了这个问题,我认为这里缺少一些东西。我的项目需要访问 FTP 服务器来下载一些特定的图像,但是我使用的代码似乎不起作用,请注意,我使用相同的代码来下载一些文本文件,它工作得很好!!!!

这是我的代码:

*注意:我正在使用 Apache commons ftpclient ..

try {
         File Imgfile = new File(Environment.getExternalStorageDirectory(), "img.jpg");
        BufferedOutputStream buffIn = new BufferedOutputStream(new FileOutputStream(Imgfile)); // local location
         con.retrieveFile("/public_html/cam.jpg", buffIn);
         buffIn.close();
    } catch (IOException e) {
         Toast customToast = new Toast(getBaseContext());

           customToast = Toast.makeText(getBaseContext(), "Cannot Downlaod the image" , Toast.LENGTH_SHORT);
           customToast.setGravity(Gravity.TOP|Gravity.LEFT, 150, 450);
           customToast.show();
    }

我也试过这个:

InputStream Fstream = null;
    try {
          Fstream = con.retrieveFileStream("/public_html/out.jpg");  
          bitmap = BitmapFactory.decodeStream(Fstream);
                      FileOutputStream stream = new FileOutputStream(mFilePath);
                       bitmap.compress(CompressFormat.JPEG, 100, stream);
                  stream.flush();
                   stream.close();

          buffIn.flush();
          buffIn.close(); 
         Fstream.close();
    } catch (IOException e) {
         Toast customToast = new Toast(getBaseContext());

           customToast = Toast.makeText(getBaseContext(), "Cannot Downlaod the image" , Toast.LENGTH_SHORT);
           customToast.setGravity(Gravity.TOP|Gravity.LEFT, 150, 450);
           customToast.show();
    }

我总是收到这条 try/catch 消息“无法下载图像”,

请告诉我出了什么问题,或者指出我正确的方向。

提前致谢

4

1 回答 1

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看这个完整的例子如何下载和显示图像....

void downloadBitmapImage()
{
}
于 2012-05-12T08:43:45.803 回答