Display byte array in gsp

Question

I want to loop through this class and display in a table. what is the easiest way to display the image?

class Crop {
    static hasMany = [diseases: Disease]
    int id
    String commonName
    String scientificName
    byte[] image
}

static mapping = {
    table: 'Crops'
    commonName length : 100
    scientificName length: 100
    image sqlType: "longblob"
}

Answer 1

You could do the same thing as in this answer.

Or you can create controller which provide image data stream from your entity. On GSP you could write:

<img src="${request.contextPath}/imageController/actionName?id=${entity.id}" ...

But this is unusual - storing images in entities as byte[]. You should consider changing it to String which would indicate a path/filename of the image.