android - HttpURLConnection getInputStream() 中的 EOFException 和 FileNotFoundException

Question

尝试连接到 http://ws.audioscrobbler.com/2.0/ 时使用 HttpURLConnection 发布数据，我得到(随机)

EOFException

或

FileNotFoundException: http://ws.audioscrobbler.com/2.0/

在运行 Android 4.2.2 的 Nexus 4 上。

有人可以帮忙吗？

编辑

我升级到 4.3:同样的问题。

public InputStream getData(String url_str, List<NameValuePair> postData) {

    Map<String, Object> response = new HashMap<String, Object>();

    InputStream is = null;
    HttpURLConnection conn = null;

    try {

        URL url = new URL(url_str);

        conn = (HttpURLConnection) url.openConnection();
        conn.setReadTimeout(CONNECTION_TIMEOUT);
        conn.setConnectTimeout(READ_TIMEOUT);
        conn.setRequestMethod("POST");
        conn.setDoInput(true);                      

        if(postData != null){

            conn.setDoOutput(true);

            OutputStream os = conn.getOutputStream();
            BufferedWriter writer = new BufferedWriter( new OutputStreamWriter(os, "UTF-8"));
            writer.write(getQuery(postData));
            writer.close();
            os.close();
        }


        // Starts the query

        conn.connect();


        // Get and return response

        is = conn.getInputStream();             

        return is;

    } catch (IOException e) {

        // ...

    } finally {

        if(conn != null){
            conn.disconnect();
        }

        if (is != null) {
            try {
                is.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        } 
    }
}


private String getQuery(List<NameValuePair> params) throws UnsupportedEncodingException
{
    StringBuilder result = new StringBuilder();
    boolean first = true;

    for (NameValuePair pair : params)
    {
        if (first)
            first = false;
        else
            result.append("&");

        result.append(URLEncoder.encode(pair.getName(), "UTF-8"));
        result.append("=");
        result.append(URLEncoder.encode(pair.getValue(), "UTF-8"));
    }

    return result.toString();
}

Answer 1

我检查了 conn.getResponseCode() 并得到了一个 403。异常可能是由于那个。