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This repository contains a barebones WebSocket server and client implementation written in 100% Java. The underlying classes are implemented java.nio, which allows for a non-blocking event-driven model (similar to the WebSocket API for web browsers). The org.java_websocket.server.WebSocketServer abstract class implements the server-side of the WebSocket Protocol. A WebSocket server by itself doesn't do anything except establish socket connections though HTTP. After that it's up to your subclass to add purpose. The org.java_websocket.client.WebSocketClient abstract class can connect to valid WebSocket servers. The constructor expects a valid ws:// or wss:// URI to connect to. Important events onOpen, onClose, onMessage and onError get fired throughout the life of the WebSocketClient, and must be implemented in your subclass.
Features
- The WebSocketServer detects any draft of a connecting client by default
- The WebSocketClient on the other hand is the one who initiates the connection and therefore has to decide which draft to use
- Draft is the base class for everything of a websocket specification which is not common such as the way the handshake is read or frames are transfered
- The WebSocket protocol has been evolving since 2009
- Using Java-Websocket is very similar to using javascript websockets
- You simply take the client or the server class and override its abstract methods by putting your application logic in place
Project Samples
