Question

In the traditional way for every client request I get servlet response.
something like this:

HttpResponse response = client.execute(request)

Now I want to get updates from my servlet every time interval.
How can i catch the server’s response?

For comparison when I worked with sockets the code looked something like this:

public void run()
{
    while(true)
    {            
        Object serverMessage = inStream.readObject();               
        // Do somthing with serverMessage
    }
}

Answer 1

You can simulate a server to client push with an approach called long polling, addressed here:
Long Polling example

HTTP is a request driven protocol. You could explore other messaging protocols depending on what you’re doing. Anything from Web Sockets to basic TCP, to a variety of frameworks that build ostensibly richer apis on top of tcp. What are you trying to accomplish?