What is the Java API for WebSocket and JSON processing?

The Java API for WebSocket and the Java API for JSON Processing are part of the Java EE 7 platform ( JSR 342 ). The application contains a WebSocket endpoint and decoder and encoder interfaces, a web page and some JavaScript files that are run in the client browser when the page is loaded or when invoked from a form in the web page.

Can a WebSocket server application be deployed to Tomcat 7?

A WebSocket server application can be deployed to Tomcat 7 or higher, or to any other Java EE servlet container that supports WebSockets. There are two packages for WebSocket programming: javax.websocket – APIs common to both the client and server side javax.websocket.server – APIs used only by server side applications

What is a WebSocket handshake?

When the browser loads the web page a client-side script sends a WebSocket handshake request to the application server. The application can accept JSON and binary messages from the clients connected in the session and broadcast the messages to all the connected clients.

What are the packages for WebSocket programming?

There are two packages for WebSocket programming: WebSocket is a technology for establishing a persistent, low-latency, full-duplex communication channel over a single http connection for real-time data exchange between a server endpoint ( Java, .NET, PHP etc.) and a client ( HTML5 / JavaScript, iOS ).

What is WebSocket in Java 7?

Introduction to the WebSocket API in Java EE 7. Introduced as part of the HTML 5 initiative, the WebSocket protocol is a standard web technology that simplifies communication and connection management between clients and a server. By maintaining a constant connection, WebSocket provides full-duplex client/server communication.

How to create a Java EE 7 web application using NetBeans?

The WebsocketHome project has been created. Right-click the WebsocketHome project and select Run to test your application. A browser window displays a TODO write content message. You successfully created a Java EE 7 web application by using NetBeans. In this section, you create the class that contains a device’s attributes.