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Initiation Dispatcher: This is actually the Reactor role. It defines some specifications, which are used to control the scheduling mode of events, and at the same time provide facilities for applications to register and delete event handlers. It itself is the core of the entire event handler, and Initiation Dispatcher waits for events to occur through Synchronous Event Demultiplexer. Once an event occurs, the Initiation Dispatcher first separates each event, then calls the event handler, and finally calls the relevant callback method to handle these events. Each callback method in Netty's ChannelHandler is called by an EventLoop in BossGroup or WorkGroup.BeijingSimilarly, the popularity of spokesmen will also have a process of sprouting, growing, flourishing and declining. When enterprises look for celebrities to speak for themselves, they often choose spokesmen at the peak of popularity in terms of brand building and popularity building.DRY (Do not repeat Yourself) policy: The same code should not be repeated more than twice《爆笑先森》是一部为互联网而生的碎片化式喜剧，每集由多个片段组成，剧中男主角崔志佳有千变万化的职业和身份，经历了各种爆笑故事。江湖小馆中，大侠路见不平，拔刀相助，引发江湖的一场血雨腥风；被困在孤岛的一群“野人”，与世隔绝，上演一幕另类的荒岛求生记；战火纷飞的前线，士兵们为了完成受伤战士的最后一个心愿，前赴后继；加勒比海盗船上，独眼船长想起了当年自己的“英勇事迹”……咱们好好想他三四年工夫。