How to Upload images to Php server and store in phpmyadmin - php

Question

I am basically tring to upload image from android and upload it to php server but here i'm not getting any connection with this code or image upload .
I'm getting this error .
Error in http connection java.net.UnknownHostException: host name
but as per my knowledge i given correct connection and php file also in correct domain.
Look at my code :
UploadImage.java
public class UploadImage extends Activity {
InputStream inputStream;
#Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);
Bitmap bitmap = BitmapFactory.decodeResource(getResources(),R.drawable.icon);
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 90, stream); //compress to which format you want.
byte [] byte_arr = stream.toByteArray();
String image_str = Base64.encodeBytes(byte_arr);
ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("image",image_str));
try{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://server.com/uploadimage/uploadimage.php");
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = httpclient.execute(httppost);
String the_string_response = convertResponseToString(response);
Toast.makeText(UploadImage.this, "Response " + the_string_response, Toast.LENGTH_LONG).show();
}catch(Exception e){
Toast.makeText(UploadImage.this, "ERROR " + e.getMessage(), Toast.LENGTH_LONG).show();
System.out.println("Error in http connection "+e.toString());
}
}
public String convertResponseToString(HttpResponse response) throws IllegalStateException, IOException{
String res = "";
StringBuffer buffer = new StringBuffer();
inputStream = response.getEntity().getContent();
int contentLength = (int) response.getEntity().getContentLength(); //getting content length…..
Toast.makeText(UploadImage.this, "contentLength : " + contentLength, Toast.LENGTH_LONG).show();
if (contentLength < 0){
}
else{
byte[] data = new byte[512];
int len = 0;
try
{
while (-1 != (len = inputStream.read(data)) )
{
buffer.append(new String(data, 0, len)); //converting to string and appending to stringbuffer…..
}
}
catch (IOException e)
{
e.printStackTrace();
}
try
{
inputStream.close(); // closing the stream…..
}
catch (IOException e)
{
e.printStackTrace();
}
res = buffer.toString(); // converting stringbuffer to string…..
Toast.makeText(UploadImage.this, "Result : " + res, Toast.LENGTH_LONG).show();
//System.out.println("Response => " + EntityUtils.toString(response.getEntity()));
}
return res;
}
}
Php Code :
<?php
$base=$_REQUEST['image'];
$binary=base64_decode($base);
header('Content-Type: bitmap; charset=utf-8');
$file = fopen('uploaded_image.jpg', 'wb');
fwrite($file, $binary);
fclose($file);
echo 'Image upload complete!!, Please check your php file directory……';?>
Any one known this issue ? if any one know how to store in mysql database from php file and fetch viceversa please suggest me here...

Answer 1

The problem is very clear ...
Error in http connection java.net.UnknownHostException: host name
means that the HttpPost cannot make a connection using the hostname you supplied - because the hostname you supplied isn't known.
If you take the hostname from this line :
HttpPost httppost = new HttpPost("http://server.com/uploadimage/uploadimage.php");
and put it in a browser on the same device what happens ... i suggest you will get an error saying unable to connect to host. If this works then i suggest you check the following line is in your manifest :
<uses-permission android:name="android.permission.INTERNET" />
Also ensure that the PHP file contains the following header if your using a JPEG:
header('Content-Type: image/jpg');

Answer 2

1. Need to add Internet permission in android manifest file .
<uses-permission android:name="android.permission.INTERNET" />
2. Every Time i used to see image using url but unable to see because i didnt added
echo "<img src=test.jpg>";
3.$file = fopen('test.jpg', 'wb');
4. final thing is i have to change header file as :
header('Content-Type: image/jpg; charset=utf-8');

Answer 3

Check Host configuration and choose right header for file upload. In your php code you have given wrong header type.

Answer 4

I recommend you as ManseUK said to add the permission in your Manifest.
This error is quite unclear but is often resolved by adding <uses-permission android:name="android.permission.INTERNET" />

Answer 5

This works for me:
// change the bitmap compress format to jpeg
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);
// then uploadimage.php
// note the imagecreatefromstring() function
error_reporting(E_ALL); // in case its turned off and your not seeing errors
ini_set('display_errors','1'); // confirm and browse to page
if($base) {
$ttime = intval(time());
$quality = '100';
$save_to = 'images/img-' . $ttime . '.jpeg';
$binary=base64_decode($base);
$im = imagecreatefromstring($binary);
if ($im !== false) {
header('Content-Type: image/jpg');
$idno = ImageJPEG($im, $save_to, $quality);
imagedestroy($im);
echo "iid:" . $ttime;
} else {
echo "Error:" . $ttime;
}
}