I'm creating an android app as well as a website using PHP. I store encoding image from android app to db. That same image I want to show in website. I tried a lot but not showing that image in website. How to decode that same image using php and shown in website.
This method, I used to encode Image from App:
private String encodeTobase64(Bitmap image) {
Bitmap bitmap_image = image;
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bitmap_image.compress(Bitmap.CompressFormat.PNG, 100, stream);
byte[] b = stream.toByteArray();
String imageEncoded = Base64.encodeToString(b, Base64.DEFAULT);
return imageEncoded;
}
This line to show image in PHP:
$query = mysql_query("select * from ACCOUNT where (company_email='$email')") or die(mysql_error());
$value = mysql_fetch_array($query);
$image = $value['PROFILE_PICTURE'];
echo '<img class="img-circle" src="data:image/jpeg;base64,' . base64_encode($image) . '" width="40" height="40"/>';
Please, anyone help me!
Thanks in advance...
Storing base 64 string into the database is not good practice.
First, convert your base 64 string into image and store image path in the database.
You can decode base 64 string into image with the help of following function:
function convert_base64_to_image($base64, $image_path) {
$file = fopen($image_path, "wb");
$image_raw_data = explode(',', $base64);
// get decodable part of image
fwrite($file, base64_decode($image_raw_data[1]));
fclose($file);
return $image_path;
}
Now store image path in database and you can use this path directly to display your image.
echo '<img class="img-circle" src="$image_path" width="40" height="40"/>';
Related
I am trying to retrieve a blob from my db, convert it into a byte[] and then a base64 string and then show this in my JSP. However I am getting nothing on my JSP, not even an error in my console.
Here is my code for getting blob etc.
Blob blob = post.getImage();
int blobLength = (int) blob.length();
byte[] blobAsBytes = blob.getBytes(1, blobLength);
String img = new String(Base64.getEncoder().encode(blobAsBytes));
System.out.println(img);
model.addAttribute("img", img);
And this is how I'm attempting to show the image in the JSP
<img src="data:image/jpeg;base64,${img}" width="100" height="100"></img>
This is my page source:
<img src="data:image/jpeg;base64,c2hhbG9t" width="100" height="100"></img>
What am I doing wrong here, when I convert the same photo on the web it outputs a huge string rather than just c2hhbG9t. Is there anyway I can get this large string.
Many thanks.
Jim
Displaying an image in base64 is rather simple:
<img src="data:image/png;base64,hexadecimal-code-for-image-here">
However, what I'm trying to do is to convert the hexadecimal value received and the save it in a png file so I get the desired picture from the code.
For instance: let's say I have the following code: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Is there any way I can convert this code to image and then store in a png file in JAVA?
Transfer the base64 into byte array and than write it to a png file.
byte[] img = Base64.getDecoder().decode(imgBase64);
Files.write(Paths.get("my.png"), img); //As suggested by Joop Eggen
Decode base64 image to byte[] then using ImageIO to write to file
byte[] imgInBytes = Base64.getDecoder().decode(base64Img);
InputStream in = new ByteArrayInputStream(imgInBytes);
BufferedImage bufferedImage = ImageIO.read(in);
File png = new File("ImageAsPNG.png");
ImageIO.write(bufferedImage, "PNG", png);
I have an Image in a database as a Blob and I want to display it as an Image on javafx, I did this:
Image imagenMonstruo = null;
Blob blob = rs.getBlob(12);
InputStream is = blob.getBinaryStream();
System.out.println(is.toString());
imagenMonstruo = new Image(is);
is.close();
And added to the object but when I run the application i don't get any error but I still don't getting the image display, with the system.out.println I get:
java.io.ByteArrayInputStream#e0debc3
So I don't know if i'm doing this properly and the others similar question asked here doesn't work.
Can you help me please?
EDIT where i get the image from my pc and it works but my problem is the image from the database in Blob format.
File file = new File("C:\\\\xampp\\htdocs\\monsterHunter\\imagenes\\anjanath.jpg");
BufferedImage imagen = ImageIO.read(file);
Image imagenMonstruo = SwingFXUtils.toFXImage(imagen, null );
I develop a custom messenger application which sends message from client(Android) to another client(web). My problem is when I send image file, I encoded it to Base64 string and then send it to another client. When the recipient client is Android, the app successfully decoded the Base64 String to bitmap image. But when the recipient client is web app, the web application failed to decode and display it using :
<img id="img" src="data:image/jpeg;base64,3iVBORw0KGgoAAAANSU...">
My Java encode/decode method
public static Bitmap base64StringToBitmap(String base64) {
byte[] bytes = Base64.decode(base64, Base64.URL_SAFE);
return BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
}
public static String bitmapToBase64String(Bitmap bmp, Bitmap.CompressFormat format, int quality) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
bmp.compress(format, quality, baos);
byte[] bytes = baos.toByteArray();
return Base64.encodeToString(bytes, Base64.URL_SAFE);
}
I've tried to change the encoding method to Base64.DEFAULT, but still the Base64 String cannot be displayed in HTML using data:image/jpeg;base64. Is there any differences between Android Base64 string and Base64 string used to display image in HTML? Please suggest me the solution. Thanks
EDIT :
This is the base64 string example generated from my Android application, with padding. I failed to display it on html/web, although it can be displayed fine on Android :
3iVBORw0KGgoAAAANSUhEUgAAAF8AAABfCAYAAACOTBv1AAAABHNCSVQICAgIfAhkiAAAChtJREFU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Y+GmXJh64Cdv2H+CYilOKOh/G/IaeDiFexQAAAAASUVORK5CYII=
I had a similar issue where I wanted to convert an Android generated BASE64 string to Binary with Javascript and atob function was keep giving me errors. My first guess was like yours to use URL_SAFE instead of DEFAULT, but none of them worked, then I figure it out that I need to use Base64.NO_WRAP method to get it working.
I tested Base64.NO_WRAP and displaying inline image and IT WORKED!!!!
Hope this save you some nerves, because I did had some till I figure it out how to do it.
So to give the nice answer, change: return Base64.encodeToString(bytes, Base64.URL_SAFE); to this: return Base64.encodeToString(bytes, Base64.NO_WRAP);
E
can you try with this for me it's working fine one two change only Base64.DEFAULT insted of URL_SAFE and image tag alt. just check it.
<img height=700px src='data:image/jpg;base64,"+encodeString+"' alt='Embeded Image'/>
public static String bitmapToBase64String(Bitmap bmp, Bitmap.CompressFormat format, int quality) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
bmp.compress(format, quality, baos);
byte[] bytes = baos.toByteArray();
return Base64.encodeToString(bytes, Base64.DEFAULT);
}
I am trying to send a UIImage (taken from an iPhone's camera) to a Java Server and display it in a JFrame.
It might have something to do with the Encoding Option as the String in Xcode and Eclipse are slightly different. ex. the xCode string has "+" for spaces, but in Eclipse, it has " " for spaces.
In Objective-C
UIImage *image = info[UIImagePickerControllerEditedImage];
NSData *imageData = UIImagePNGRepresentation([temp objectForKey:#"photo"]);
NSString *base64StringOfImage = [imageData base64EncodedStringWithOptions:NSDataBase64Encoding64CharacterLineLength];
I then send this NSString in json to Java
In Java
byte[] imageBytes = Base64.decodeBase64(jsonPhoto.getString("photo"));
BufferedImage img = ImageIO.read(new ByteArrayInputStream(imageBytes));
I get this error on the BufferedImage img line:
javax.imageio.IIOException: Error reading PNG image data
If anyone can show me how to fix this, that would be great.
I figured it out.
byte[] imageBytes = Base64.decodeBase64(jsonPhoto.getString("photo").replace(' ', '+'));