Android- POST multipart form data
ビデオと電子メールや名前などのデータを含むマルチパートフォームを送信したいと思います。以下は私のコードであり、機能しません、サーバーからの応答がありません
File file =new File(VideoPath);
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(url);
try {
// Add your data
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
nameValuePairs.add(new BasicNameValuePair("Name", "LDGHT"));
nameValuePairs.add(new BasicNameValuePair("Email", "[email protected]"));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
httppost.setEntity(new FileEntity(file, "video/mp4"));
// Execute HTTP Post Request
HttpResponse response = httpclient.execute(httppost);
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
} catch (IOException e) {
// TODO Auto-generated catch block
}
マルチパートデータの送信について私の投稿を確認する マルチパートを使用してサーバーにデータを送信する ..
こちらも参考にしてください Link
new Task_Finder().execute();
ビデオファイルをサーバーにアップロード：
public class Task_Finder extends AsyncTask<Void, Void, Void> {
private final ProgressDialog dialog = new ProgressDialog(Facebook_Post_View.this);
// can use UI thread here
protected void onPreExecute() {
this.dialog.setMessage("Loading...");
this.dialog.setCancelable(false);
this.dialog.show();
}
@Override
protected Void doInBackground(Void... arg0) {
// TODO Auto-generated method stub
HttpURLConnection conn = null;
DataOutputStream dos = null;
DataInputStream inStream = null;
String existingFileName = file_path;
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1*1024*1024;
String urlString = "YOUR PHP LINK FOR UPLOADING IMAGE";
try{
//------------------ CLIENT REQUEST
FileInputStream fileInputStream = new FileInputStream(new File(existingFileName) );
// open a URL connection to the Servlet
URL url = new URL(urlString);
// Open a HTTP connection to the URL
conn = (HttpURLConnection) url.openConnection();
// Allow Inputs
conn.setDoInput(true);
// Allow Outputs
conn.setDoOutput(true);
// Don't use a cached copy.
conn.setUseCaches(false);
// Use a post method.
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setRequestProperty("Content-Type", "multipart/form-data;boundary="+boundary);
dos = new DataOutputStream( conn.getOutputStream() );
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"uploadedfile\";filename=\"" + upload_file_name + "\"" + lineEnd); // uploaded_file_name is the Name of the File to be uploaded
dos.writeBytes(lineEnd);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];
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);
}
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
fileInputStream.close();
dos.flush();
dos.close();
}
catch (MalformedURLException ex){
Log.e("Debug", "error: " + ex.getMessage(), ex);
}
catch (IOException ioe){
Log.e("Debug", "error: " + ioe.getMessage(), ioe);
}
//------------------ read the SERVER RESPONSE
try {
inStream = new DataInputStream ( conn.getInputStream() );
String str;
while (( str = inStream.readLine()) != null){
Log.e("Debug","Server Response "+str);
reponse_data=str;
}
inStream.close();
}
catch (IOException ioex){
Log.e("Debug", "error: " + ioex.getMessage(), ioex);
}
return null;
}
@Override
protected void onPostExecute(Void result) {
if (this.dialog.isShowing()) {
this.dialog.dismiss();
}
}
}
残念ながら、Venkyのコードを使用することはできませんでした。 2日後、私は最終的に自分の解決策を見つけ、それが同じ問題を抱えている人たちに役立つことを願っています。このコードは私の構造に基づいているため、自由にコードを変更してください。注：bitmapProfileImageは、ビットマップイメージ（Bitmap bitmapProfileImage;）を保持するグローバル変数です。
public class ContentDownloader {
public static String getHttpPutContent(String url, String token, MultipartEntity multipartEntity) {
try {
HttpClient httpClient = new DefaultHttpClient();
HttpPut put = new HttpPut(url);
put.setHeader("token", token);
// Log.i(TAG, "Token=> " + token);
Log.i(TAG, "Try to open=> " + url);
MultipartEntity reqEntity = multipartEntity;
put.setEntity(reqEntity);
HttpResponse httpResponse = httpClient.execute(put);
int statusCode = httpResponse.getStatusLine().getStatusCode();
Log.i(TAG, "Connection code: " + statusCode);
HttpEntity entity = httpResponse.getEntity();
String serverResponse = EntityUtils.toString(entity);
Log.i(TAG, "Server response=> " + serverResponse);
if(!isStatusOk(statusCode))
return null;
return serverResponse;
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
/**
*
* @param statusCode
* @return True if connection code is 2xx, False otherwise.
*/
private static boolean isStatusOk(int statusCode) {
if((statusCode >= HttpURLConnection.HTTP_OK) && (statusCode <= HttpURLConnection.HTTP_PARTIAL))
return true;
return false;
}
}
したがって、アクティビティ/フラグメントにはAsyncTaskクラスが必要です。 doInBackgroundメソッド内に次のコードを追加します。
@Override
protected Integer doInBackground(Void... params) {
String content = "";
String url = LinkManager.getUserProfileUrl();
Person person = SpStorage.getPersonInfo(context);
String imgPath = SpStorage.getProfilePicPath(context);
String imgName = imgPath.substring(imgPath.lastIndexOf("/") + 1);
if(bitmapProfileImage == null) {
Log.i(TAG, "bitmap is null. Try to get it from profile pic directory...");
String file_path = Environment.getExternalStorageDirectory().getAbsolutePath() +
File.separator + ImageDownloader.DIRECTORY_NAME + File.separator + PROFILE_PICS;
imgPath = new File(file_path, imgName).getAbsolutePath();
bitmapProfileImage = BitmapFactory.decodeFile(imgPath);
}
if(bitmapProfileImage != null) {
Log.i(TAG, "Image address: " + imgPath);
try {
MultipartEntity reqEntity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);
reqEntity.addPart("first_name", new StringBody(person.getName()));
reqEntity.addPart("last_name", new StringBody(""));
reqEntity.addPart("email",new StringBody(person.getEmail()));
reqEntity.addPart("birthday", new StringBody(person.getBirthDay()));
reqEntity.addPart("gender", new StringBody(person.getGender(person.getGender())));
reqEntity.addPart("orientation", new StringBody(person.getOrientation(person.getGender(), person.getLookingFor())));
reqEntity.addPart("relationship_status", new StringBody(person.getStatus(person.getStatus())));
reqEntity.addPart("city", new StringBody(person.getCity()));
reqEntity.addPart("about", new StringBody(person.getAboutMe()));
reqEntity.addPart("device_type", new StringBody("Android"));
ByteArrayOutputStream bos = new ByteArrayOutputStream();
bitmapProfileImage.compress(Bitmap.CompressFormat.PNG, 0, bos);
byte[] data = bos.toByteArray();
ByteArrayBody bab = new ByteArrayBody(data, "profilePic.png");
reqEntity.addPart("photo", bab);
content = ContentDownloader.getHttpPutContent(url, SpStorage.getToken(context), reqEntity);
}
catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
catch (Exception e) {
e.printStackTrace();
}
} else
Log.e(TAG, "Image not found :(");
if(!TextUtils.isEmpty(content)) {
return 0; // registration successful
}
return -1;
}
最後に、MultipartEntityを使用するには、4つのjarファイルをダウンロードする必要があります。 1つは Apache-mime4j で、残りは httpclient、httpcoreおよびhttpmime です。 jarファイルを抽出して、プロジェクトの./libsフォルダにコピー/貼り付けする必要があります。
Apache httpライブラリを使用して、ポストでイメージを送信するための私の解決策があります（私はより簡単であることを願っています）（ここで非常に重要なのは、境界の追加です。接続しないと機能しません）。私はそれがそのような状況で役立つことを願っています：
ByteArrayOutputStream baos = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 100, baos);
byte[] imageBytes = baos.toByteArray();
HttpClient httpclient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(StaticData.AMBAJE_SERVER_URL + StaticData.AMBAJE_ADD_AMBAJ_TO_GROUP);
String boundary = "-------------" + System.currentTimeMillis();
httpPost.setHeader("Content-type", "multipart/form-data; boundary="+boundary);
ByteArrayBody bab = new ByteArrayBody(imageBytes, "pic.png");
StringBody sbOwner = new StringBody(StaticData.loggedUserId, ContentType.TEXT_PLAIN);
StringBody sbGroup = new StringBody("group", ContentType.TEXT_PLAIN);
HttpEntity entity = MultipartEntityBuilder.create()
.setMode(HttpMultipartMode.BROWSER_COMPATIBLE)
.setBoundary(boundary)
.addPart("group", sbGroup)
.addPart("owner", sbOwner)
.addPart("image", bab)
.build();
httpPost.setEntity(entity);
try {
HttpResponse response = httpclient.execute(httpPost);
...then reading response