java - 当我从 url 下载时，URL 自动更改导致错误 "file not found"

Question

try {
        URL url = new URL("http://dantri.com.vn/xa-hoi.rss");
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.connect();

        InputStream is = new BufferedInputStream(url.openStream());
        OutputStream fos = new FileOutputStream("/sdcard/xa-hoi.rss");

        byte[] buffer = new byte[1024];
        int bufferLenght = 0;
        while((bufferLenght = is.read(buffer)) != -1){
            fos.write(buffer, 0, bufferLenght);
        }
        fos.close();
        fos.flush();
        is.close();
    } catch (MalformedURLException e) {
        e.printStackTrace();
    } catch (IOException e){
        e.printStackTrace();
    }

LogCat: 03-05 05:11:35.620: W/System.err(3437): java.io.FileNotFoundException: http://m.dantri.com.vn/xa-hoi.rss .

此问题是 url "dantri.com.vn/xa-hoi.rss"更改为 "m.dantri.com.vn/xa-hoi.rss" 请帮我!。谢谢大家。

Answer 1

确保您在 list 中编写了以下内容。

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />