HttpURLConnection发送图像，audio和video文件的参数可能（string或JSONstring）的Android

我分享解决scheme发送图像 ， audio或video文件使用HttpURLConnection参数。 参数可能是（普通string或JSON）。

（Android客户端到PHP后端）

场景：必须上传媒体文件（audio，video和图像参数）。

媒体文件将存储在一个服务器文件夹和参数分贝。

我遇到了一个问题，即在参数丢失的情况下 图像上传成功 。

find潜在的解决scheme

在这里推荐使用 HttpURLConnection而不是Httpclient

你可能想知道，哪个客户最好？

Apache HTTP客户端在Eclair和Froyo上有更less的错误。 这是这些版本的最佳select。

对于姜饼和更好，HttpURLConnection是最好的select。 其简单的API和小尺寸使其非常适合Android。 透明压缩和响应caching减lessnetworking使用，提高速度并节省电池。 新的应用程序应该使用HttpURLConnection; 这是我们将在哪里花费我们的能量前进。

Android代码：

public int uploadFile(final 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); if (!sourceFile.isFile()) { dialog.dismiss(); Log.e("uploadFile", "Source File not exist :" + filepath); runOnUiThread(new Runnable() { public void run() { messageText.setText("Source File not exist :" + filepath); } }); return 0; } else { try { FileInputStream fileInputStream = new FileInputStream(sourceFile); URL url = new URL(upLoadServerUri); conn = (HttpURLConnection) url.openConnection(); conn.setDoInput(true); // Allow Inputs conn.setDoOutput(true); // Allow Outputs conn.setUseCaches(false); // Don't use a Cached Copy 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("uploaded_file", fileName); dos = new DataOutputStream(conn.getOutputStream()); dos.writeBytes(twoHyphens + boundary + lineEnd); //Adding Parameter name String name="amir"; dos.writeBytes("Content-Disposition: form-data; name=\"name\"" + lineEnd); //dos.writeBytes("Content-Type: text/plain; charset=UTF-8" + lineEnd); //dos.writeBytes("Content-Length: " + name.length() + lineEnd); dos.writeBytes(lineEnd); dos.writeBytes(name); // mobile_no is String variable dos.writeBytes(lineEnd); dos.writeBytes(twoHyphens + boundary + lineEnd); //Adding Parameter phone String phone="9956565656"; dos.writeBytes("Content-Disposition: form-data; name=\"phone\"" + lineEnd); //dos.writeBytes("Content-Type: text/plain; charset=UTF-8" + lineEnd); //dos.writeBytes("Content-Length: " + name.length() + lineEnd); dos.writeBytes(lineEnd); dos.writeBytes(phone); // mobile_no is String variable dos.writeBytes(lineEnd); //Json_Encoder encode=new Json_Encoder(); //call to encode method and assigning response data to variable 'data' //String data=encode.encod_to_json(); //response of encoded data //System.out.println(data); //Adding Parameter filepath dos.writeBytes(twoHyphens + boundary + lineEnd); String filepath="http://192.168.1.110/echo/uploads"+fileName; dos.writeBytes("Content-Disposition: form-data; name=\"filepath\"" + lineEnd); //dos.writeBytes("Content-Type: text/plain; charset=UTF-8" + lineEnd); //dos.writeBytes("Content-Length: " + name.length() + lineEnd); dos.writeBytes(lineEnd); dos.writeBytes(filepath); // mobile_no is String variable dos.writeBytes(lineEnd); //Adding Parameter media file(audio,video and image) 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(); bufferSize = Math.min(bytesAvailable, maxBufferSize); buffer = new byte[bufferSize]; // read file and write it into form... bytesRead = fileInputStream.read(buffer, 0, bufferSize); while (bytesRead > 0) { dos.write(buffer, 0, bufferSize); bytesAvailable = fileInputStream.available(); bufferSize = Math.min(bytesAvailable, maxBufferSize); bytesRead = fileInputStream.read(buffer, 0, bufferSize); } // send multipart form data necesssary after file data... dos.writeBytes(lineEnd); dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd); serverResponseCode = conn.getResponseCode(); String serverResponseMessage = conn.getResponseMessage(); Log.i("uploadFile", "HTTP Response is : "+ serverResponseMessage + ": " + serverResponseCode); if (serverResponseCode == 200) { runOnUiThread(new Runnable() { public void run() { msg = "File Upload Completed.\n\n See uploaded file here : \n\n" + "c:/wamp/www/echo/uploads"; messageText.setText(msg); Toast.makeText(MainActivity.this, "File Upload Complete.", 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 : check script url."); Toast.makeText(MainActivity.this, "MalformedURLException", Toast.LENGTH_SHORT) .show(); } }); Log.e("Upload file to server", "error: " + ex.getMessage(), ex); } catch (final Exception e) { dialog.dismiss(); e.printStackTrace(); runOnUiThread(new Runnable() { public void run() { messageText.setText("Got Exception : "+e.toString()); Toast.makeText(MainActivity.this, "Got Exception : see logcat ", Toast.LENGTH_SHORT).show(); } }); Log.e("Upload file to server Exception", "Exception : " + e.getMessage(), e); } dialog.dismiss(); return serverResponseCode; } } 

PHP代码：

 $file_path = "uploads/"; //receive parameters $name=$_POST['name']; $phone=$_POST['phone']; $filepath=$_POST['filepath']; //receive media files(image , audio and video) $file_path = $file_path . basename( $_FILES['uploaded_file']['name']); if(move_uploaded_file($_FILES['uploaded_file']['tmp_name'], $file_path)) { echo "Success"; } 

希望这可以帮助。

任何疑问都问我。

Answer 1

您可以使用Retrofit进行API调用。 Android的最低支持是2.3。 请查看详细信息。

Answer 2

你可以使它更简单！ 尝试以下。

 public static String uploadImage(Bitmap bitmap, String urlString) { try { ByteArrayOutputStream bos = new ByteArrayOutputStream(); bitmap = Local.resize(bitmap, 512, 512); if(filename.toLowerCase().endsWith("jpg") || filename.toLowerCase().endsWith("jpeg")) bitmap.compress(Bitmap.CompressFormat.JPEG, 70, bos); if(filename.toLowerCase().endsWith("png")) bitmap.compress(Bitmap.CompressFormat.PNG, 70, bos); ContentBody contentPart = new ByteArrayBody(bos.toByteArray(), filename); ContentBody body1 = new StringBody("something"); ContentBody body2 = new StringBody("something"); org.apache.http.entity.mime.MultipartEntity reqEntity = new org.apache.http.entity.mime.MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE); reqEntity.addPart("image", contentPart); reqEntity.addPart("sample1", body1); reqEntity.addPart("sample2", body2); URL url = new URL(urlString); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setReadTimeout(10000); conn.setConnectTimeout(15000); conn.setRequestMethod("POST"); conn.setUseCaches(false); conn.setDoInput(true); conn.setDoOutput(true); conn.setRequestProperty("Connection", "Keep-Alive"); conn.addRequestProperty("Content-length", reqEntity.getContentLength()+""); conn.addRequestProperty(reqEntity.getContentType().getName(), reqEntity.getContentType().getValue()); OutputStream os = conn.getOutputStream(); reqEntity.writeTo(conn.getOutputStream()); os.close(); conn.connect(); if (conn.getResponseCode() == HttpURLConnection.HTTP_OK) { Log.d("UPLOAD", "HTTP 200 OK."); return readStream(conn.getInputStream()); //This return returns the response from the upload. } else { Log.d("UPLOAD", "HTTP "+conn.getResponseCode()+" "+conn.getResponseMessage()+"."); String stream = readStream(conn.getInputStream()); //Log.d("UPLOAD", "Response: "+stream); return stream; } } catch (Exception e) { Log.d("UPLOAD_ERROR", "Multipart POST Error: " + e + "(" + urlString + ")"); } return null; }