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in Technique[技术] by (71.8m points)

无法发送消息问题

手机h5页面,建立的长连接,设置的心跳是55s。可是我每20s,我就主动去连接,这样就保证了心跳包一直在维持这个链接。现在有个问题就是,在手机上没有任何操作,手机自动锁屏了,等个四五分钟后,在打开手机,就收不到信息了,也监测不到断开连接了。我怎么能知道我的链接是断了的状态呢,或者能知道是异常状态也行


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by (71.8m points)

兼容性够的话,h5用visibilitychange,该事件监听页面显示状态


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