Question

当我尝试下载文件http://tfob.azstarnet.com/images/authors/Alcal%C3%A1_Kathleen_small.jpg时，我收到了FileNotFoundException。问题几乎可以肯定，URL在字符串中有重音字符。我该如何处理？

我正在下载它。

Log.d(TFOB.TAG, "Image src: " + desc.getString("image"));
productURL = new URL (desc.getString("image").trim());
prod = productURL.openConnection();
is = prod.getInputStream(); // Exception gets thrown here
bis = new BufferedInputStream(is);
bit = BitmapFactory.decodeStream(bis);

这是堆栈跟踪：

Image src: http://tfob.azstarnet.com/images/authors/Alcalá_Kathleen_small.jpg
java.io.FileNotFoundException: http://tfob.azstarnet.com/images/authors/Alcalá_Kathleen_small.jpg
org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:1162)

我是否必须摆脱口音或什么？

Answer 1

解决方案（在我的情况下）：

如果服务器响应代码是＆gt; = HTTP_BAD_REQUEST（大于400），则类HttpURLConnectionImpl的方法getInputStream（）将抛出 FileNotFoundException（因此无法打开输入流）。

即使此文件存在，您的对象也不会为您提供输入流，因为服务器响应代码为> = 400 - 更改服务器上的响应代码或使用其他类连接。

源代码片段： http://www.docjar.com/html/api/org/apache/harmony/luni/internal/net/www/protocol/http/HttpURLConnectionImpl.java.html

867 @Override 868 public InputStream getInputStream() throws IOException { 869 if (!doInput) { 870 throw new ProtocolException(Messages.getString("luni.28")); //$NON-NLS-1$ 871 } 872 873 // connect before sending requests 874 connect(); 875 doRequest(); 876 ... 883 if (responseCode >= HTTP_BAD_REQUEST) { 884 throw new FileNotFoundException(url.toString()); 885 } 886 887 return uis; 888 }

Answer 2

试试这个：

URLDecoder

Answer 3

我用残酷的方法解决了问题：

private Drawable LoadImageFromWebOperations(String strPhotoUrl) {
    try{    
        String lnk = strPhotoUrl;
            lnk = lnk.replaceAll("à","%C3%A0");
            lnk = lnk.replaceAll("è","%C3%A8");
            lnk = lnk.replaceAll("è","%C3%A9");
            lnk = lnk.replaceAll("ì","%C3%AC");
            lnk = lnk.replaceAll("ò","%C3%B2");
            lnk = lnk.replaceAll("ù","%C3%B9");
            Log.i("Tommy", lnk+"\n");
            InputStream is = (InputStream) new URL(lnk).getContent();
            Drawable d = Drawable.createFromStream(is, "src name");
            return d;
            } catch (Exception e) {
               //System.out.println("Exc=" 2e);
                Log.i("Tommy", strPhotoUrl+"\n");
                Log.i("Tommy", e.toString() + "\n\n");
                return null;
            }
}

FileNotFound除了获取带有重音Java的URL资源时

3 个答案: