Apache MINA

Apache MINA is a network application framework which helps users develop high performance and high scalability network applications easily. It provides an abstract · event-driven · asynchronous API over various transports such as TCP/IP and UDP/IP via Java NIO.

Apache MINA is often called:

NIO framework · library,
client · server framework · library, or
a networking · socket library.

Features

Unified API for various transport types:

TCP/IP & UDP/IP via Java NIO 
Serial communication (RS232) via RXTX 
In-VM pipe communication 
You can implement your own!

Filter interface as an extension point; similar to Servlet filters
Low-level and high-level API:

Low-level: uses ByteBuffers 
High-level: uses user-defined message objects and codecs

Highly customizable thread model:

Single thread 
One thread pool 
More than one thread pools (i.e. SEDA)

Out-of-the-box SSL · TLS · StartTLS support using Java 5 SSLEngine
Overload shielding & traffic throttling
Unit testability using mock objects
JMX managability
Stream-based I/O support via StreamIoHandler
Integration with well known containers such as PicoContainer and Spring
Smooth migration from Netty, an ancestor of Apache MINA.

Architecture

几个重要接口：

IoAccepter 相当于网络应用程序中的服务器端
IoConnector 相当于客户端
IoSession 当前客户端到服务器端的一个连接实例
IoHandler 业务处理逻辑
IoFilter 过滤器用于链接通讯层接口与业务层接口

参考: 使用 Apache MINA 开发高性能网络应用程序

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