Netty is an asynchhronous event-driven network application framework
for rapid development of maintainable high performance protocal servers&clients
--high-scalability protocol servers and clients.

Netty is an NIO client server framework that enables quick and easy development of network applications such as protocol servers and clients.

framework


why use Netty

a general purpose protocal or its implementation sometimes does not scale very well

protocol

Additionally, Netty provides out-of-the-box decoders which enables you to implement most protocols very easily and helps you avoid from ending up with a monolithic unmaintainable handler implementation. Please refer to the following packages for more detailed examples:

io.netty.example.factorial for a binary protocol, and
io.netty.example.telnet for a text line-based protocol.