关于java:reactornetty之client与server如何共用EventLoopGroup

间接到DefaultLoopResources类中，能够看到两个办法

    @Override    public EventLoopGroup onClient(boolean useNative) {        if (useNative && LoopResources.hasNativeSupport()) {            return cacheNativeClientLoops();        }        return cacheNioClientLoops();    }

    @Override    public EventLoopGroup onServer(boolean useNative) {        if (useNative && LoopResources.hasNativeSupport()) {            return cacheNativeServerLoops();        }        return cacheNioServerLoops();    }

而后进入cacheNativeClientLoops()中

    EventLoopGroup cacheNativeClientLoops() {        EventLoopGroup eventLoopGroup = cacheNativeClientLoops.get();        if (null == eventLoopGroup) {            EventLoopGroup newEventLoopGroup = LoopResources.colocate(cacheNativeServerLoops());            if (!cacheNativeClientLoops.compareAndSet(null, newEventLoopGroup)) {                // Do not shutdown newEventLoopGroup as this will shutdown the server loops            }            eventLoopGroup = cacheNativeClientLoops();        }        return eventLoopGroup;    }

能够看到调了cacheNativeServerLoops()办法，实现了与server共用EventLoopGroup.
那么在编程中， 如何指定EventLoopGroup线程数呢？那么请转到reactor.netty.resources.LoopResources中

int DEFAULT_IO_WORKER_COUNT = Integer.parseInt(System.getProperty(            ReactorNetty.IO_WORKER_COUNT,            "" + Math.max(Runtime.getRuntime().availableProcessors(), 4)));

其中ReactorNetty.IO_WORKER_COUNT值为"reactor.netty.ioWorkerCount", 那能够简略通过设置这个值来实现。