尽管setDoOutput(true)和setRequestMethod("POST"),HttpURLConnection始终执行GET请求而不是POST请求

Question

自更新到冰淇淋三明治后,我的POST请求不再起作用.在ICS之前,这很好用:

try {
        final URL url = new URL("http://example.com/api/user");
        final HttpURLConnection connection = (HttpURLConnection) url
                .openConnection();
        connection.setRequestMethod("POST");
        connection.setDoOutput(false);
        connection.setDoInput(true);
        connection.setRequestProperty("Content-Length", "0");
        if (connection.getResponseCode() != HttpURLConnection.HTTP_OK) {
            Log.w(RestUploader.class.getSimpleName(), ": response code: " + connection.getResponseMessage());
        } else {
            final BufferedReader reader = new BufferedReader(
                    new InputStreamReader(connection.getInputStream()));
            final String line = reader.readLine();
            reader.close();
            return Long.parseLong(line);
        }
    } catch (final MalformedURLException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (final ProtocolException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (final IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return -1;

我试着设定

connection.setDoOutput(true);

但它不起作用.服务器响应始终为405(方法不允许),服务器日志表明它是GET请求.

Android JavaDoc to setRequestMethod说:

只能在建立连接之前调用此方法.

这是否意味着必须在url.openConnection()之前调用该方法？我应该如何创建HttpURLConnection实例？我见过的所有例子,如上所述.

我希望有人知道为什么它总是发送一个GET请求而不是POST.

提前致谢.

Answer 1

connection.setRequestMethod("POST");
connection.setDoOutput(false);

在上面两个语句中只需放置

connection.setDoOutput(true)

前

connection.setRequestMethod("POST")

陈述