![]() In this tutorial, you create Java WebSocket Home, a smart home control web application based on Java EE 7. WebSocket also provides greater scalability for message-intensive applications because only one connection per client is used (whereas HTTP creates one request per message).įinally, WebSocket is part of Java EE 7, so you can use other technologies in the Java EE 7 stack. The server can send data to the client at any time.īecause WebSocket runs over TCP, it also reduces the overhead of each message. WebSocket provides an alternative to this limitation by providing bi-directional, full-duplex, real-time, client/server communications. These disadvantages result in less efficient communication between the server and the web browser, especially for real-time applications. "Push" or Comet techniques, such as long-polling, emerged as a way to allow a server to push data to a browser.īecause these techniques usually rely on HTTP, they present some disadvantages for client/server communications, such as HTTP overhead. HTTP, however, wasn't built to deliver the kind of interactivity needed today. Modern web applications require more interactivity than ever before for client/server communications. Operate on Plain Old Java Objects (POJOs), in real-time, with actions invoked from a web browser client.Define a client-side WebSocket endpoint by using JavaScript.Use the OnOpen and OnMessage WebSocket lifecycle events to perform different actions on the Java EE 7 application.Create a Java Platform, Enterprise Edition 7 (Java EE 7) application that uses the WebSocket API. ![]() This tutorial shows you how to create an application that uses the WebSocket API for real-time communication between a client and a server.
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