Introduction We have seen a popular choice for sending real time data from server to client in web application is using WebSocket in our previous tutorials Messaging with STOMP over WebSockets using Spring and ActiveMQ and Spring Boot WebSocket AngularJS Gradle Example. WebSocket opens bidirectional connections between server and client. So both server and client can […]
This tutorial shows how to use ValueChangeListener to create dependent dropdown in JSF 2 and MySQL. I have used here JSF valueChangeListener which fires value change event when select option gets change. Any component that receives user input, such as one of the HTML select or text input components, can publish value change events.