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私は投稿経由で写真をアップロードする機能があります。私はファイルをうまくアップロードすることができますが、POSTにキー/値のペアを追加する方法についてはわかりませんが、基本的にはAPIキーとセッションキーをファイルデータと共に取得する必要があります。アンドロイドでファイルをアップロードして定期的な投稿キーと値のペアを送信するには
public ContainerData submitPhoto(FileInputStream fileInputStream, String sessionKey) {
try {
URL url = new URL(API_URL);
HttpURLConnection conn = null;
if (url.getProtocol().toLowerCase().equals("https")) {
trustAllHosts();
HttpsURLConnection https = (HttpsURLConnection) url.openConnection();
https.setHostnameVerifier(DO_NOT_VERIFY);
conn = https;
} else {
conn = (HttpURLConnection) url.openConnection();
}
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
// HttpURLConnection conn = (HttpURLConnection)
// connectURL.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);
DataOutputStream dos = new DataOutputStream(conn.getOutputStream());
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"uploadedfile\";filename=\"" + "file.png" + "\"" + lineEnd);
dos.writeBytes(lineEnd);
// create a buffer of maximum size
int bytesAvailable = fileInputStream.available();
int maxBufferSize = 1028;
int bufferSize = Math.min(bytesAvailable, maxBufferSize);
byte[] buffer = new byte[bufferSize];
// read file and write it into form...
int 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);
*/
}
// send multipart form data necesssary after file data...
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
dos.flush();
// Log.d(TAG, " dos5: " + dos.toString());
InputStream is = conn.getInputStream();
// retrieve the response from server
int ch;
StringBuffer b = new StringBuffer();
while ((ch = is.read()) != -1) {
b.append((char) ch);
}
String stringResponse = b.toString();
// Log.d(TAG, "http response for upload" + s);
dos.close();
Gson gson = new GsonBuilder().serializeNulls().create();
responseObject = gson.fromJson(stringResponse,ContainerData.class);
JSONObject data = new JSONObject(stringResponse);
String dataResponse = data.getString("data");
responseObject.setDataString(dataResponse);
} catch (JSONException e) {
e.printStackTrace();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return responseObject;
}