Question

我正在进行Asynch服务器调用，并且偶尔会产生此异常：

End of input at character 0 of

我来到这里：

    @Override
    protected String doInBackground(String... theParams) 
    {
        String myUrl = theParams[0];
        final String user_id = theParams[1];

        String charset = "UTF-8";           
        String response = null;

        try 
        {                           
            String query = String.format("user_id=%s", 
                     URLEncoder.encode( user_id, charset) );

            final URL url = new URL( myUrl + "?" + query );

            final HttpURLConnection conn = (HttpURLConnection) url.openConnection();

            conn.setDoOutput(true); 
            conn.setRequestMethod("POST");

            conn.setDoOutput(true);
            conn.setUseCaches(false);

            conn.connect();

            final InputStream is = conn.getInputStream();
            final byte[] buffer = new byte[8196];
            int readCount;
            final StringBuilder builder = new StringBuilder();
            while ((readCount = is.read(buffer)) > -1) 
            {
                builder.append(new String(buffer, 0, readCount));
            }

            response = builder.toString();      
        } 
        catch (Exception e) 
        {
                 e.getMessage());
        }}

有人知道为什么会产生这种情况吗？只是服务器没有响应吗？或其他什么？

谢谢！

Answer 1

之前已经问过这个问题。

你确定你没有对期待GET的网址发出POST请求吗？尝试将requestMethod更改为GET并查看其进展情况。

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org.json.JSON Exception : End of input at character 0

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1 个答案: