ファイルを Web API に直接送信しているかどうかはわかりません。クライアントリクエスト コードにエラーを与えるものは何もないためです。しかし、サーバーへの応答を取得しているときに、java.io.FileNotFoundException が返されます。したがって、Web サーバーにファイルをアップロードしないため、要求コードに問題があると思います。そのため、java.io.FileNotFoundException が発生すると思います。このおかげで私を助けてください。
HttpURLConnection conn = null;
DataOutputStream dos = null;
String samplefile = "storage/sdcard0/Pictures/Images/productshot.jpg";
String urlString = "http://avasd.server.com.ph:1217/api/fileupload";
File mFile = new File(samplefile);
int mychunkSize = 2048 * 1024;
final long size = mFile.length();
final long chunks = size < mychunkSize? 1: (mFile.length() / mychunkSize);
int chunkId = 0;
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 2 * 1024 * 1024;
try {
//Client Request
FileInputStream stream = new FileInputStream(mFile);
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "-------------------------acebdf13572468";// random data
String param1 = ""+chunkId;
String param2 = ""+chunks;
String param3 = mFile.getName();
String param4 = samplefile;
for (chunkId = 0; chunkId < chunks; chunkId++) {
URL url = new URL(urlString);
// Open a HTTP connection to the URL
conn = (HttpURLConnection) url.openConnection();
conn.setReadTimeout(20000 /* milliseconds */);
conn.setConnectTimeout(20000 /* milliseconds */);
// 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");
String encoded = Base64.encodeToString((_username+":"+_password).getBytes(),Base64.NO_WRAP);
conn.setRequestProperty("Authorization", "Basic "+encoded);
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setChunkedStreamingMode(0);
conn.setRequestProperty("Content-Type", "multipart/form-data;boundary="+boundary);
int length = (int) (param2.length() + param3.length() + mFile.length() + encoded.length() + lineEnd.length() + twoHyphens.length() + boundary.length());
conn.connect();
dos = new DataOutputStream( conn.getOutputStream() );
dos.writeBytes(twoHyphens + boundary + lineEnd);
// Send parameter #file
dos.writeBytes("Content-Disposition: form-data; name=\"fieldNameHere\";filename=\"" + mFile.getName() + "\"" + lineEnd); // filename is the Name of the File to be uploaded
dos.writeBytes("Content-Type: image/jpeg" + lineEnd);
dos.writeBytes(lineEnd);
// Send parameter #chunks
dos.writeBytes("Content-Disposition: form-data; name=\"chunk\"" + lineEnd);
dos.writeBytes(param2 + lineEnd);
dos.writeBytes(twoHyphens + boundary + lineEnd);
// Send parameter #name
dos.writeBytes("Content-Disposition: form-data; name=\"name\"" + lineEnd);
dos.writeBytes(param3 + lineEnd);
dos.writeBytes(twoHyphens + boundary + lineEnd);
bytesAvailable = stream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];
// read file and write it into form...
bytesRead = stream.read(buffer, 0, bufferSize);
while (bytesRead > 0) {
dos.write(buffer, 0, bufferSize);
bytesAvailable = stream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
bytesRead = stream.read(buffer, 0, bufferSize);
Log.i("BytesAvailable", String.valueOf(bytesAvailable));
Log.i("bufferSize", String.valueOf(bufferSize));
Log.i("Bytes Read", String.valueOf(bytesRead));
Log.i("buffer", String.valueOf(buffer));
}
// send multipart form data necesssary after file data...
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
// close streams
stream.close();
dos.flush();
dos.close();
Log.i("DOS: ", String.valueOf(dos.size()));
}
} catch (MalformedURLException ex) {
System.out.println("From CLIENT REQUEST:" + ex);
}catch (IOException ioe) {
System.out.println("From CLIENT REQUEST:" + ioe);
}catch (Exception e) {
Log.e("From CLIENT REQUEST:", e.toString());
}
//Server Response
try {
System.out.println("Server response is: \n");
DataInputStream inStream = new DataInputStream(conn.getInputStream());
String str;
while ((str = inStream.readLine()) != null) {
System.out.println(str);
System.out.println("");
}
inStream.close();
System.out.println("\nEND Server response ");
} catch (IOException ioex) {
System.out.println("From (ServerResponse): " + ioex);
}