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【Q738】websocket 和短轮询有什么区别 #765

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shfshanyue opened this issue Feb 9, 2022 · 3 comments
Open

【Q738】websocket 和短轮询有什么区别 #765

shfshanyue opened this issue Feb 9, 2022 · 3 comments
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@shfshanyue
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@shfshanyue shfshanyue added the http label Feb 9, 2022
@zhiyuan5985
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短轮询是每隔一段时间发送一次HTTP请求，WebSocket 是全双工通讯的协议，允许服务端主动向客户端推送数据。短轮询的实时性不高，而且影响性能，而WebSocket做到了真正意义上的实时。

@1596944197
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好像是建立长连接，在连接不挂掉期间，都是可以互相传输信息

@wolichuang
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websocket 是双工道通信协议
短轮询 是单工道

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@wolichuang @shfshanyue @zhiyuan5985 @1596944197