Question

我们使用 Asynctask 在Android上开发了一个应用程序，用于从后端检索数据，该数据运行良好。然后，该应用程序已移至另一个新服务器。在此之后，大部分时间当我们尝试连接到服务器时，我们收到 307 （临时重定向）HTTP错误。虽然我们拥有为iOS开发的相同应用程序，但它在新服务器上运行良好。

目前，我尝试使用旧服务器的URL运行Android应用程序，它运行良好。与此同时，当我使用新服务器的URL时，问题仍然存在。

所以我需要知道它是服务器配置的问题，还是我正在使用的连接库的问题。

    public void getData(MainModel mainModel) {

        this.mainModel = mainModel;
        requestURL = " ........";
        postString = "........";

        execute();
    }


    public HttpURLConnection POSTConnection(String postString) {

        URL url = null;
        HttpURLConnection httpURLConnection = null;

        try {
            url = new URL(requestURL);

            httpURLConnection = (HttpURLConnection) url.openConnection();
            httpURLConnection.setDoOutput(true);

            httpURLConnection.setRequestMethod("POST");
            httpURLConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

            PrintWriter out = new PrintWriter(httpURLConnection.getOutputStream());
            out.print(postString);
            out.close();

        } catch (MalformedURLException e) {
            exception(e);
        } catch (ProtocolException e) {

            exception(e);
        } catch (IOException e) {

            exception(e);

        }

        return httpURLConnection;
    }

    public String JSONResponse(HttpURLConnection httpURLConnection) {

        int statusCode = 0;
        StringBuilder response;
        byte[] data = null;
        String responseString = null;

        try {

            statusCode = httpURLConnection.getResponseCode();

            if (statusCode == HttpURLConnection.HTTP_OK) {

                BufferedReader bufferedReader = new BufferedReader(new InputStreamReader
                        (httpURLConnection.getInputStream()));

                response = new StringBuilder();

                String line;
                while ((line = bufferedReader.readLine()) != null) {
                    response.append(line);
                }

                data = response.toString().getBytes();
                responseString = new String(data);

            } else {

                POSTConnection(postString);
                data = null;
            }


        } catch (IOException e) {

            exception(e);
        }

        return responseString;

    }


protected ArrayList<....Model> doInBackground(Void... params) {

    ArrayList<.....Model> myList = null;

    HttpURLConnection httpURLConnection = POSTConnection(postString);

    if (httpURLConnection != null) {

        String responseString = JSONResponse(httpURLConnection);

        if (responseString != null) {

            myList = parseJSONResponse(responseString);

        }

        httpURLConnection.disconnect();
    }

    return .......;
}

提前致谢。

Answer 1

查看HttpURLConnection.setFollowRedirects(boolean)方法

您应该可以在代码中添加以下内容：

httpURLConnection = (HttpURLConnection) url.openConnection();
httpURLConnection.setDoOutput(true);

httpURLConnection.setFollowRedirects(true);

httpURLConnection.setRequestMethod("POST");
httpURLConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

迁移到新服务器后，Android中的HTTP错误307

1 个答案: