I am trying to upload a file to web server,and also send two variables along with it. The file uploads correctly but the variables are not available at server side .Here is my code
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
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);
conn.setRequestProperty("from", phone);//here
conn.setRequestProperty("contact", contact);//here
dos = new DataOutputStream(conn.getOutputStream());
String urlParameters = "from=" + phone + "&contact=" + contact;
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"uploaded_file\";filename=\""
+ fileName + "\"" + lineEnd);
dos.writeBytes(lineEnd);
At server side which is PHP i am accessing the variables from and contact using $_SERVER['from'];
Can you point out what am i doing wrong or a new approach to it?
I also tried dos.writeBytes("contact=a&from=b");
I found the solution on this thread:
Sending files using POST with HttpURLConnection
This is what i end typing:
String boundary = "*****";
String lineEnd = "\r\n";
String twoHyphens = "--";
HttpsURLConnection conn = null;
DataOutputStream dos = null;
BufferedReader inStream = null;
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 10*1024*1024;
String urlString = "https://yoururl.com/phpfile.php";
try{
File f = new File("filepath");
String filename = "filename";
FileInputStream fileInputStream = new FileInputStream(f);
// open a URL connection to the Servlet
URL url = new URL(urlString);
// Open a HTTP connection to the URL
conn = (HttpsURLConnection) 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("enctype", "multipart/form-data");
conn.setRequestProperty("Content-Type", "multipart/form-data;boundary="+boundary);
conn.setRequestProperty("upfile", filename);
dos = new DataOutputStream( conn.getOutputStream() );
String name = "myvariable";
String value = "123456";
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"" + name + "\""+ lineEnd);
dos.writeBytes("Content-Type: text/plain; charset=UTF-8" + lineEnd);
dos.writeBytes(lineEnd);
dos.writeBytes(value+ lineEnd);
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"upfile\"; 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);
// Responses from the server (code and message)
int serverResponseCode = conn.getResponseCode();
String serverResponseMessage = conn.getResponseMessage();
Log.i("upfile", "HTTP Response is : "
+ serverResponseMessage + ": " + serverResponseCode);
// close streams
fileInputStream.close();
dos.flush();
dos.close();
}
catch (MalformedURLException ex)
{
Log.e("Debug", "erro: " + ex.getMessage(), ex);
}
catch (IOException ioe)
{
Log.e("Debug", "erro: " + ioe.getMessage(), ioe);
}
And this is my php relevant code:
try {
if (
!isset($_FILES['upfile']['error']) ||
is_array($_FILES['upfile']['error'])
) {
throw new RuntimeException('Invalid parameters.');
}
switch ($_FILES['upfile']['error']) {
case UPLOAD_ERR_OK:
break;
case UPLOAD_ERR_NO_FILE:
throw new RuntimeException('No file sent.');
case UPLOAD_ERR_INI_SIZE:
case UPLOAD_ERR_FORM_SIZE:
throw new RuntimeException('Exceeded filesize limit.');
default:
throw new RuntimeException('Unknown errors.');
}
if ($_FILES['upfile']['size'] > 100000) {
throw new RuntimeException('Exceeded filesize limit.');
}
$variable = $_REQUEST["myvariable"];
//do what you want with the variable you send
if (!move_uploaded_file(
$_FILES['upfile']['tmp_name'],
sprintf('myfolder/%s',
$_FILES['upfile']['name']
)
)) {
throw new RuntimeException('Failed to move uploaded file.');
}
echo 'File is uploaded successfully.';
} catch (RuntimeException $e) {
echo $e->getMessage();
}
Related
I'm experienced with PHP, JavaScript and a lot of other scripting languages, but I don't have a lot of experience with Java or Android.
I'm using below code to send file to sever, that is run without any problem, but I want to POST other data like "operation=upload_file" with file.
FileInputStream fileInputStream = new FileInputStream(selectedFile);
URL url = new URL(SERVER_URL);
connection = (HttpURLConnection) url.openConnection();
connection.setDoInput(true);//Allow Inputs
connection.setDoOutput(true);//Allow Outputs
connection.setUseCaches(false);//Don't use a cached Copy
connection.setRequestMethod("POST");
connection.setRequestProperty("Connection", "Keep-Alive");
connection.setRequestProperty("ENCTYPE", "multipart/form-data");
connection.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary);
//creating new dataoutputstream
dataOutputStream = new DataOutputStream(connection.getOutputStream());
//writing bytes to data outputstream
dataOutputStream.writeBytes(twoHyphens + boundary + lineEnd);
dataOutputStream.writeBytes("Content-Disposition: form-data; name=\"uploaded_file\";filename=\""
+ selectedFilePath + "\"" + lineEnd);
dataOutputStream.writeBytes(lineEnd);
//returns no. of bytes present in fileInputStream
bytesAvailable = fileInputStream.available();
//selecting the buffer size as minimum of available bytes or 1 MB
bufferSize = Math.min(bytesAvailable,maxBufferSize);
//setting the buffer as byte array of size of bufferSize
buffer = new byte[bufferSize];
//reads bytes from FileInputStream(from 0th index of buffer to buffersize)
bytesRead = fileInputStream.read(buffer,0,bufferSize);
//loop repeats till bytesRead = -1, i.e., no bytes are left to read
while (bytesRead > 0){
//write the bytes read from inputstream
dataOutputStream.write(buffer,0,bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable,maxBufferSize);
bytesRead = fileInputStream.read(buffer,0,bufferSize);
}
dataOutputStream.writeBytes(lineEnd);
dataOutputStream.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
serverResponseCode = connection.getResponseCode();
String serverResponseMessage = connection.getResponseMessage();
Log.i(TAG, "Server Response is: " + serverResponseMessage + ": " + serverResponseCode);
//response code of 200 indicates the server status OK
if(serverResponseCode == 200){
runOnUiThread(new Runnable() {
#Override
public void run() {
tvFileName.setText("File Upload completed.\n\n You can see the uploaded file here: \n\n" + "http://coderefer.com/extras/uploads/"+ fileName);
}
});
}
//closing the input and output streams
fileInputStream.close();
dataOutputStream.flush();
dataOutputStream.close();
What can be done?
Try this code :
private void doFileUpload(String filePath) {
HttpURLConnection conn = null;
DataOutputStream dos = null;
DataInputStream inStream = null;
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1 * 1024 * 1024;
String responseFromServer = "";
String urlString = BASE_URL + "upload.php";
try {
//------------------ CLIENT REQUEST
FileInputStream fileInputStream = new FileInputStream(new File(filePath));
// 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=\"" + filePath + "\"" + 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);
// close streams
Log.i("Debug", "File is written");
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.i("Debug", "Server Response " + str);
}
inStream.close();
} catch (IOException ioex) {
Log.e("Debug", "error: " + ioex.getMessage(), ioex);
}
}
i have some code to send some string parameters via POST method to server
my code is this:
public int uploadAghahi(aghahi AghahiToSend) {
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(AghahiToSend.imagePath);
if (!sourceFile.isFile()) {
prgDialog.dismiss();
runOnUiThread(new Runnable() {
public void run() {
}
});
return 0;
} else {
try {
JSONObject params = new JSONObject();
params.put("mainsubjectid", "1");
params.put("subsubjectid", "22");
params.put("stateid", "144");
params.put("cityid", "144");
params.put("onvan", "سیاسیباسیباشیباشسیباسیبا");
params.put("address", "سیاسیباسیباشیباشسیباسیبا");
params.put("phone", "سیاسیباسیباشیباشسیباسیبا");
params.put("email", "hseify69#gmail.com");
params.put("tozihat", "سیاسیباسیباشیباشسیباسیبا");
FileInputStream fileInputStream = new FileInputStream(
sourceFile);
URL url = new URL(ADDRESSsendAghahi);
conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("POST");
conn.setRequestProperty("Accept-Charset", "UTF-8");
conn.setDoInput(true); // Allow Inputs
conn.setDoOutput(true); // Allow Outputs
conn.setUseCaches(false); // Don't use a Cached Copy
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setRequestProperty("ENCTYPE", "multipart/form-data");
conn.setRequestProperty("Content-Type",
"multipart/form-data;boundary=" + boundary);
conn.setRequestProperty("uploaded_file", AghahiToSend.imagePath);
// conn.setRequestProperty("content-type",
// "application/json;charset=UTF-8");
dos = new DataOutputStream(conn.getOutputStream());
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Type: text/plain; charset=UTF-8"
+ lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"obj\""
+ lineEnd);
dos.writeBytes(lineEnd);
dos.writeBytes(params.toString());
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + 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);
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(AghahiToSend.imagePath); // 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=\""
+ AghahiToSend.imagePath + "\"" + 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();
serverResponseMessage = conn.getResponseMessage();
InputStream is = conn.getInputStream();
BufferedReader reader = new BufferedReader(
new InputStreamReader(is));
String line = "";
while ((line = reader.readLine()) != null) {
result += line;
}
Toast.makeText(AddAghahiActivity.this, serverResponseMessage,
Toast.LENGTH_LONG).show();
if (serverResponseCode == 200) {
runOnUiThread(new Runnable() {
public void run() {
}
});
}
// close the streams //
fileInputStream.close();
dos.flush();
dos.close();
} catch (MalformedURLException ex) {
}
});
} catch (final Exception e) {
}
});
}
prgDialog.dismiss();
return serverResponseCode;
}
}
i have a problem and it is with encoding Strings.
some of my strings are in persian and when send to server they get changet to other characters like below:
,3ED3ED3~'3E'3ED4
or
*G1'F
How can i send params correctlly?
Find the appropriate encoding for the server, and encode your request with that encoding, and decode the response with that encoding too. For example, the code I did write yesterday on Python:
params = urllib.parse.urlencode({'tool': tool, 'input': full_text, 'token': token}).encode("UTF-8") # Encoding parameters
result = urllib.request.urlopen(api_url, params) # Making request
readed_result = result.read().decode("UTF-8") # Decoding response
The logic is the same in the Java too.
How to find appropriate encoding for server? Check http header for encoding.
For example:
This is my code to send file to server over HTTP,
but i am trying to transfer using HTTPS i tried it for passing values using parameters it was working but i don't know how to code it with file stream,
can anybody help me with this i have ssl certificate
void Sending() {
String iFileName = "video.mp4";
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
String Tag = "fSnd";
try {
Log.e(Tag, "Starting Http File Sending to URL");
// Open a HTTP connection to the URL
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=\"title\""
+ lineEnd);
dos.writeBytes(lineEnd);
dos.writeBytes(Title);
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"description\""
+ lineEnd);
dos.writeBytes(lineEnd);
dos.writeBytes(Description);
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"uploadedfile\";filename=\""
+ iFileName + "\"" + lineEnd);
dos.writeBytes(lineEnd);
Log.e(Tag, "Headers are written");
// create a buffer of maximum size
int bytesAvailable = fileInputStream.available();
int maxBufferSize = 1024;
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);
// close streams
fileInputStream.close();
dos.flush();
Log.e(Tag,
"File Sent, Response: "
+ String.valueOf(conn.getResponseCode()));
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 s = b.toString();
Log.i("Response", s);
dos.close();
} catch (MalformedURLException ex) {
Log.e(Tag, "URL error: " + ex.getMessage(), ex);
}
catch (IOException ioe) {
Log.e(Tag, "IO error: " + ioe.getMessage(), ioe);
}
}
I want to upload a mp3 file to a web server and get its response that should be a string but I get 415 error ,HTTP Response is : Cannot process the message because the content type 'multipart/form-data;boundary=*' was not the expected type 'application/soap+xml; charset=utf-8'.: 415, here is my code, why does the server refuse this format?
public static int upLoad2Server(String sourceFileUri) {
String upLoadServerUri = "http://address:port/example/mex";
// String [] string = sourceFileUri;
String fileName = sourceFileUri;
int serverResponseCode = 0;
HttpURLConnection conn = null;
DataOutputStream dos = null;
DataInputStream inStream = null;
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1 * 1024 * 1024;
String responseFromServer = "";
File sourceFile = new File(sourceFileUri);
if (!sourceFile.isFile()) {
Log.i("Huzza", "Source File Does not exist");
return 0;
}
try { // open a URL connection to the Servlet
FileInputStream fileInputStream = new FileInputStream(sourceFile);
URL url = new URL(upLoadServerUri);
conn = (HttpURLConnection) url.openConnection(); // Open a HTTP
// connection to
// the URL
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);
dos.writeBytes("Content-Disposition: form-data; name=\"uploaded_file\";filename=\""
+ fileName + "\"" + lineEnd);
dos.writeBytes(lineEnd);
bytesAvailable = fileInputStream.available(); // create a buffer of
// maximum size
Log.i("Huzza", "Initial .available : " + bytesAvailable);
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 necessary 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();
Log.i("Upload file to server", "HTTP Response is : "
+ serverResponseMessage + ": " + serverResponseCode);
// close streams
Log.i("Upload file to server", fileName + " File is written");
fileInputStream.close();
dos.flush();
dos.close();
} catch (MalformedURLException ex) {
ex.printStackTrace();
Log.i("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) {
Log.i("Huzza", "RES Message: " + line);
}
rd.close();
} catch (IOException ioex) {
Log.i("Huzza", "error: " + ioex.getMessage(), ioex);
}
return serverResponseCode; // like 200 (Ok)
} // end upLoad2Server
Your code includes this:
conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary);
and the error is staying that it's expecting Content-Type to be this:
application/soap+xml; charset=utf-8
I recommend re-examining why you're setting the content type to something other than the server accepts.
I am trying to make an app that can connect android app to the server, and I need to upload and download 2 or more files
I found this code
private void doFileUpload() {
HttpURLConnection conn = null;
DataOutputStream dos = null;
DataInputStream inStream = null;
String existingFileName = Environment.getExternalStorageDirectory()
.getAbsolutePath() + "/android/data/[package]/files/productHistory";
**String existingFileName2 = Environment.getExternalStorageDirectory()
.getAbsolutePath() + "/android/data/[package]/files/productStock";**
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1 * 1024 * 1024;
String responseFromServer = "";
String urlString = "http://192.168.1.112/johnson/learn/android/";
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=\""
+ existingFileName + "\"" + lineEnd);
**dos.writeBytes("Content-Disposition: form-data; name=\"uploadedfile\";filename=\""
+ existingFileName2 + "\"" + 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);
// close streams
Log.e("Debug", "File is written");
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);
}
inStream.close();
} catch (IOException ioex) {
Log.e("Debug", "error: " + ioex.getMessage(), ioex);
}
}
The bold text is edited by me,
but it is fail, it only upload the first one
my question is 1. how to upload 2/more files with the code?
2. and how to download them?
thanks in advance
Not sure if you have to use a specific server, yet Parse offers a sweet SDK with intuitive API to send/receive data (images in you case) to and from the server. I'd suggest you try that out if you don't want to spend to much time writing code that sends and receives data to and from a server. (and no, I don't work at Parse, just a big fan of their tools :P).