android - 格式错误的 URL 异常：空（Android 应用程序）

Question

在这里谦虚地寻求一些意见。我有一个将用户文件备份到托管服务器的 Android 应用程序。它已经好 3 个多月了，昨天它开始给出格式错误的 url 错误。我根本没有更改任何代码（请参见下面的代码），但它已经停止了。我试图输出错误是什么，它只返回 null

我的问题是 1) 是什么导致了这种变化（我怀疑我的虚拟主机做了一些现在让我很困惑的变化） 2) 我该如何解决这个问题？

我在我的应用程序中调用此代码：

sendFileToServer(uploadFilePath+uploadFileName,"http://www.blablabla/UploadToServerFileName.php");

实际代码：

public int uploadFile(String sourceFileUri) {

    String fileName = sourceFileUri;

    HttpURLConnection conn = null;
    DataOutputStream dos = null;
    String lineEnd = "\r\n";
    String twoHyphens = "--";
    String boundary = "*****";
    int bytesRead, bytesAvailable, bufferSize;
    byte[] buffer ;

    int maxBufferSize = 1 * 1024 * 1024;
    File sourceFile = new File(sourceFileUri);


    busy = true;
    if (!sourceFile.isFile()) {

        //dialog.dismiss();

        Log.e("uploadFile", "Source File not exist :"
                + uploadFilePath + "" + uploadFileName);


        return 0;

    } else {
        try {

            // open a URL connection to the Servlet
            FileInputStream fileInputStream = new FileInputStream(sourceFile);
            URL url = new URL(upLoadServerUri);

            // Open a HTTP  connection to  the URL
            conn = (HttpURLConnection) url.openConnection();
            conn.setDoInput(true); // Allow Inputs
            conn.setDoOutput(true); // Allow Outputs
            conn.setUseCaches(false); // Don't use a Cached Copy
            //something else to try 02022021 - add backbyuffersize and bytesavailable though
            conn.setChunkedStreamingMode(1024);
            //conn.setChunkedStreamingMode(1024);
            conn.setRequestMethod("POST");//30122020
            conn.setRequestProperty("Connection", "Keep-Alive");
            conn.setRequestProperty("ENCTYPE", "multipart/form-data");
            conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary);

            //runs here 08 03
            //conn.setRequestProperty("Content-Length", Integer.toString(fileInputStream.available())); //12012021
            // conn.setDoOutput(true);



            conn.setRequestProperty("uploaded_file", fileName);//20012021


            dos = new DataOutputStream(conn.getOutputStream());

            dos.writeBytes(twoHyphens + boundary + lineEnd);
            dos.writeBytes("Content-Disposition: form-data; name=\"uploaded_file\";filename=\""
                    + fileName + "\"" + lineEnd);

            dos.writeBytes(lineEnd);

            // create a buffer of  maximum size
            bytesAvailable = fileInputStream.available(); //02022021

            bufferSize = Math.min(bytesAvailable, maxBufferSize); //02022021
            bufferSize = 8192;
            //buffer = new byte[bufferSize]; 02022021
            buffer = new byte[8192];


            // read file and write it into form...
        //  bytesRead = fileInputStream.read(buffer, 0, bufferSize);//02022021
            bytesRead = fileInputStream.read(buffer);

            while (bytesRead > 0) {

                //dos.write(buffer, 0, bufferSize); 02022021
                dos.write(buffer, 0, bytesRead);
                bytesAvailable = fileInputStream.available();
            //bufferSize = Math.min(bytesAvailable, maxBufferSize);02022021a
            //  bytesRead = fileInputStream.read(buffer, 0, bufferSize); 02022021a
                bytesRead = fileInputStream.read(buffer);

            }

            // send multipart form data necesssary after file data...
            dos.writeBytes(lineEnd);
            dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);


            // Responses from the server (code and message)
            serverResponseCode = conn.getResponseCode();
            String serverResponseMessage = conn.getResponseMessage();

            if (serverResponseCode == 200) {
                itemcount++;
                uploadcount++;


                //editor.commit();
            } else {
                runOnUiThread(new Runnable() {
                    public void run() {

                        Toast.makeText(UploadToServer.this, "Failed" + String.valueOf(serverResponseCode),
                                Toast.LENGTH_SHORT).show();
                    }
                });
            }


            //close the streams //
            fileInputStream.close();
            dos.flush();
            dos.close();

        } catch (MalformedURLException ex) {

            //dialog.dismiss();
            ex.printStackTrace();
        

            runOnUiThread(new Runnable() {
                public void run() {
                    messageText.setText("MalformedURLException Exception :"+ex.getMessage());
                    Bugsnag.notify(new RuntimeException(String.valueOf(ex.getStackTrace())));
                    

                }
            });

            Log.e("Upload file to server", "error: " + ex.getMessage(), ex);
        } catch (Exception e) {

        //  dialog.dismiss();
            e.printStackTrace();

            runOnUiThread(new Runnable() {
                public void run() {
                    //  messageText.setText("Got Exception : see logcat ");
                    messageText.setText(e.getMessage());
                    //  Toast.makeText(UploadToServer.this, "Got Exception : see logcat ",
                    //        Toast.LENGTH_SHORT).show();
                }
            });
            Log.e("Exception", "Exception : "
                    + e.getMessage(), e);
        }
    //  dialog.dismiss();

        return serverResponseCode;

    } // End else block

}

标签： androidhttp