Question

I want to write an excel and send it to the user as a response in an application using Play framework 1.x. But I am not sure how to set the response content-type/MIME-type for returning doc or excel file.

Let me know the steps for this.

Answer 1

From the documentation:

To serve binary data, such as a file stored on the server, use the renderBinary method. For example, if you have a User model with a play.db.jpa.Blob photo property, add a controller method to load the model object and render the image with the stored MIME type:

public static void userPhoto(long id) { 
    final User user = User.findById(id); 
    response.setContentTypeIfNotSet(user.photo.type());
    java.io.InputStream binaryData = user.photo.get();
    renderBinary(binaryData);
}