Java NIO and TCP Connections

Internal

• TCP
• Java Non-Blocking I/O Concepts

Overview

This article describes the programming model involved in establishing a simple TCP connection and interacting with it with non-blocking I/O, from Java. We use Java NIO APIs primitives introduced in Java 4.

Programming Model

Server

The server code uses a Selector to multiplex over two selectable channels: a ServerSocketChannel that listens for incoming network connections and creates new SocketChannels for each new TCP connection. Once a new connection is detected, the selector thread gets the corresponding SocketChannel and register it with the same selector.

Client

Example

Playground Java NIO and TCP Connections