Android：如何将.mp3文件和图像上传到http服务器？

我将图像上传到服务器的代码是：

String userIdParameter = String.valueOf(userId); String fileName = "temporary_holder.jpg"; 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; String sourceFileUri = HomeScreen.get_path(); String upLoadServerUri = "http://10.120.10.87:8080/WebImage/UploadImage"; File sourceFile = new File(sourceFileUri); if (!sourceFile.isFile()) { Log.e("Huzza", "Source File Does not exist"); return; } int serverResponseCode = 0; try { // open a URL connection to the Servlet FileInputStream fileInputStream = new FileInputStream(sourceFile); // ------------------ CLIENT REQUEST 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 // Use a post method. conn.setRequestMethod("POST"); conn.setRequestProperty("Connection", "Keep-Alive"); conn.setRequestProperty("ENCTYPE", "multipart/form-data"); conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary); conn.setRequestProperty("file_name", fileName); conn.setRequestProperty("file_name_audio", fileName); conn.setRequestProperty("X-myapp-param1", userIdParameter); // conn.setFixedLengthStreamingMode(1024); // conn.setChunkedStreamingMode(1); dos = new DataOutputStream(conn.getOutputStream()); dos.writeBytes(twoHyphens + boundary + lineEnd); dos.writeBytes("Content-Disposition: form-data; name=\"file_name\";filename=\"" + fileName + "\"" + lineEnd); dos.writeBytes(lineEnd); // create a buffer of maximum size bytesAvailable = fileInputStream.available(); int streamSize = (int) sourceFile.length(); bufferSize = streamSize / 10; System.out.println("streamSize" + streamSize); buffer = new byte[streamSize]; // read file and write it into form... bytesRead = fileInputStream.read(buffer, 0, bufferSize); int count = 0; while (bytesRead > 0) { progress = (int) (count); displayNotification(); Thread.sleep(500); dos.write(buffer, 0, bufferSize); bytesAvailable = fileInputStream.available(); // bufferSize = Math.min(bytesAvailable, maxBufferSize); bytesRead = fileInputStream.read(buffer, 0, bufferSize); count += 10; } // 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(); System.out.println("Upload file to serverHTTP Response is : " + serverResponseMessage + ": " + serverResponseCode); // close streams System.out.println("Upload file to server" + fileName + " File is written"); fileInputStream.close(); dos.flush(); dos.close(); } catch (MalformedURLException ex) { ex.printStackTrace(); Log.e("Upload file to server", "error: " + ex.getMessage(), ex); } catch (Exception e) { e.printStackTrace(); } // this block will give the response of upload link try { BufferedReader rd = new BufferedReader(new InputStreamReader( conn.getInputStream())); String line; while ((line = rd.readLine()) != null) { System.out.println("RESULT Message: " + line); } rd.close(); } catch (IOException ioex) { Log.e("Huzza", "error: " + ioex.getMessage(), ioex); } return; // like 200 (Ok) 

将图像上传到服务器工作正常..我需要将mp3文件和图像上传到服务器..请帮助

Answer 1

那么，您想在一个HTTP请求中发送多个文件？ 我自己从来没有这样做，但根据RFC ，只需在发送音频的消息中添加另一个正文，它应该如下所示：

  dos = new DataOutputStream(conn.getOutputStream()); dos.writeBytes(twoHyphens + boundary + lineEnd); dos.writeBytes("Content-Disposition: form-data; name=\"file_name\";filename=\"" + fileName + "\"" + lineEnd); dos.writeBytes(lineEnd); // Code for sending the image.... dos.writeBytes(lineEnd); dos.writeBytes(twoHyphens + boundary + lineEnd); dos.writeBytes("Content-Disposition: form-data; name=\"file_name_audio\";filename=\"" + fileNameAudio + "\"" + lineEnd); dos.writeBytes(lineEnd); // Code for sending the MP3 dos.writeBytes(lineEnd); dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd); 

确保两个部件的名称不同（取决于服务器软件）。