How to call function of JavaScript from servlet

Question

I am new to web development. I have an external JavaScript file which has a function to show a prompt with error details. I need to pass the error message to the function. I

Answer 1

You can achieve similar kind of behavior by using following method. While sending response itself you can provide JS events.

PrintWriter out = response.getWriter();
out.println("");

So when you click on Search button, search record method of JS will be called.