apache MINA 源码级分析-[贰]

http://rrsy23.iteye.com/blog/422689

http://rrsy23.iteye.com/blog/422589

 

需要先看前面的2篇 才能理解在说什么!

 

通过分离业务与io处理的线程池 这样 业务的阻塞不会导致IO处理的阻塞

 

[16:24:14] INFO [org.apache.mina.transport.socket.nio.NioSocketAcceptor] - accept an client connection thread info-->NioSocketAcceptor-1 [16:24:14] INFO [org.apache.mina.filter.logging.LoggingFilter] - OPENEDThread info--> NioProcessor-1 nextFilter is class org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1 [16:24:15] INFO [org.apache.mina.example.echoserver.EchoProtocolHandler] - OPENED Thread info--> pool-3-thread-1 [16:24:15] INFO [org.apache.mina.transport.socket.nio.NioSocketAcceptor] - accept an client connection thread info-->NioSocketAcceptor-1 [16:24:15] INFO [org.apache.mina.filter.logging.LoggingFilter] - OPENEDThread info--> NioProcessor-2 nextFilter is class org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1 [16:24:16] INFO [org.apache.mina.transport.socket.nio.NioSocketAcceptor] - accept an client connection thread info-->NioSocketAcceptor-1 [16:24:16] INFO [org.apache.mina.filter.logging.LoggingFilter] - OPENEDThread info--> NioProcessor-3 nextFilter is class org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1 [16:24:17] INFO [org.apache.mina.transport.socket.nio.NioSocketAcceptor] - accept an client connection thread info-->NioSocketAcceptor-1 [16:24:17] INFO [org.apache.mina.filter.logging.LoggingFilter] - OPENEDThread info--> NioProcessor-1 nextFilter is class org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1 [16:24:35] INFO [org.apache.mina.example.echoserver.EchoProtocolHandler] - --sleeping wake up 20 seconds---

 

从日志可以看出 现在 accept  ioprocess iohandler各自自己的线程池 这样才 真的异步

 

chain.addLast("threadPool", new ExecutorFilter(Executors.newSingleThreadExecutor()));

关键所在 不加则2,3车间公用一个线程池

实践不可能单线 一般

chain.addLast("threadPool", new ExecutorFilter(Executors.newCachedThreadPool()));

用什么线程池 自己实际考虑