golang，如何判断一个链接5分钟内无任何消息

问题描述

问 题

请问如何实现一个tcp链接5分钟无消息的话服务器就关闭这个链接呢？希望高手可以帮忙解答一下

解决方案

断开是由server端断开还是client端？client设置超时时间就可以。server端如果用了nginx可以用nginx，
go 的话就用net.Conn的setdeadline
文档代码

// SetDeadline sets the read and write deadlines associated
    // with the connection. It is equivalent to calling both
    // SetReadDeadline and SetWriteDeadline.
    //
    // A deadline is an absolute time after which I/O operations
    // fail with a timeout (see type Error) instead of
    // blocking. The deadline applies to all future I/O, not just
    // the immediately following call to Read or Write.
    //
    // An idle timeout can be implemented by repeatedly extending
    // the deadline after successful Read or Write calls.
    //
    // A zero value for t means I/O operations will not time out.
    SetDeadline(t time.Time) error

    // SetReadDeadline sets the deadline for future Read calls.
    // A zero value for t means Read will not time out.
    SetReadDeadline(t time.Time) error

    // SetWriteDeadline sets the deadline for future Write calls.
    // Even if write times out, it may return n > 0, indicating that
    // some of the data was successfully written.
    // A zero value for t means Write will not time out.
    SetWriteDeadline(t time.Time) error
    

意思就是设置读写超时时间，过了时间没有读写就抛出timeout，如果时间内读写成功，则刷新过期时间。这应该就是你想要的。

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