How to display images in web page using angularjs? - angularjs

Question

I already know how to save images in mongodb using angularjs and java to save it in my mongodb,
I need to get the saved image from mongodb and display it in an html page using AngularJS.
This is my controller for getting image
#GET
#Path("/{id}")
#Produces(MediaType.APPLICATION_OCTET_STREAM)
public Response getById(#PathParam("id") String id) throws IOException
{
Response response = null;
MongoClient mongoClient = new MongoClient("localhost", 27017);
DB mongoDB = mongoClient.getDB("sampleDB");
DBCollection collection = mongoDB.getCollection("filestore");
BasicDBObject query = new BasicDBObject();
ObjectId oid = new ObjectId(id);
query.put("_id", oid);
GridFS fileStore = new GridFS(mongoDB, "filestore");
GridFSDBFile gridFile = fileStore.findOne(query);
InputStream in = gridFile.getInputStream();
ByteArrayOutputStream out = new ByteArrayOutputStream();
int data = in.read();
while (data >= 0)
{
out.write((char) data);
data = in.read();
}
out.flush();
ResponseBuilder builder = Response.ok(out.toByteArray());
builder.header("Content-Disposition", "attachment; filename=");
response = builder.build();
return response;
}
This is my angularjs for getting image
var userImagePromise = $http.get("../api/s3/" + $scope.user.profileImage[0].id);
userImagePromise.success(function(data, status, headers, config) {
$scope.imageData = data;
});
userImagePromise.error(function(data, status, headers, config) {
});
This is my html for displaying image
<img id="userProfileImg" height="150px" width="150px" ng-src="data:image/png;base64,{{imageData}}">
if I simply put the link to browser i got this output in octect-stream
�PNG .....
How to display image in html?Any error in my code wise?
Image for getting output

Answer 1

i think your base64 code is not converting images properly, so check my code it may help you.
import java.awt.image.BufferedImage;
import java.io.BufferedWriter;
import java.io.ByteArrayOutputStream;
import javax.imageio.ImageIO;
BufferedImage buffimage = ImageIO.read(new File(imagePath));
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ImageIO.write(buffimage, "png", baos);
String img = Base64.encode(baos.toByteArray());
send this img variable to your angularjs code.