在android中如何使用API​​在服务器上上传大尺寸的文件？

Question

朋友们，我正在使用web API制作文件转换应用程序。为此，我需要将我的文件发送到服务器我的代码完全运行我能够将文件发送到服务器，但是当我选择大尺寸文件时，它显示内存异常，上传文件的代码在这里

private String apiCall(String action, List query, String formatOptionXml)
        throws Exception {

    String currentUrl = OnlineConvert.URL;
    String xmlResponse = "";

    Log.d("main", "upload start   ");
    /*
     * if (!"get-queue".equals(action)) {
     * this.getServer(this.targetTypeOptions.get(this.targetType)); }
     */
    try {
        //FileInputStream fi = new FileInputStream(new File(in.inputpath));
        URL browser = new URL(currentUrl + "/" + action);
        HttpURLConnection conn = (HttpURLConnection) browser.openConnection();
        String params = "queue=" + URLEncoder.encode(this.getMap2XML((Map) query.get(OnlineConvert.QUEUE_COMMAN_PARAMS),"<?xml version=\"1.0\" encoding=\"UTF-8\"?>",formatOptionXml+ this.getFileMap2XML((Map) query.get(OnlineConvert.QUEUE_FILE_METADATA_PARAMS))),"UTF-8");
        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type","application/x-www-form-urlencoded");
        conn.setRequestProperty("Content-Length",String.valueOf(params.length()));
        conn.setRequestProperty("connection", "close");
        conn.setUseCaches(false);
        conn.setDoOutput(true);
        conn.setDoInput(true);

        OutputStream wr = conn.getOutputStream();
        wr.write(params.getBytes());
        wr.flush();
        // Get the response
        int statusCode = conn.getResponseCode();
        BufferedReader in = null;
        String inputLine;
        StringBuilder response = new StringBuilder();
        if (statusCode >= 200 && statusCode < 400) {
            in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
            while ((inputLine = in.readLine()) != null) {
                response.append(inputLine);
            }
        } else {
            in = new BufferedReader(new InputStreamReader(conn.getErrorStream()));
        }

        xmlResponse = response.toString();

        wr.close();
        in.close();

    } catch (MalformedURLException e) {
        Log.d("main", "MalformedURLException   " + e);
        throw new MalformedURLException(
                "Error downloading pathway overview images :"
                        + e.getMessage());
    } catch (IOException e) {
        Log.d("main", "IOException  " + e);
        throw new IOException("Error In IOException :" + e.getMessage());
    } catch (Exception e) {
        Log.d("main", "Exception " + e);
        throw new Exception("Exception :" + e.getMessage());
    }
    Log.d("main", "upload done");
    return xmlResponse;
}

通过这个我能够上传小尺寸文件但是当我尝试发送超过10MB的文件时它显示我的内存异常所以请帮我解决这个问题

Answer 1

我认为你可以使用多部分连接请求发送它并更改你的代码。

  

connection.setRequestProperty（ “内容类型”，   “multipart / form-data; boundary =”+ boundary）;