使goroutine中的TCP连接保持活动状态，并检查连接是否丢失是否超时

I have a TCP server up and running listetning to a port and a go routine for handeling the connections. I wonder if it's possible to have a go routine running for every connection keeping them alive with net.SetKeepAlive(true). Also with error handling so that if the connection times out it will execute cleanup functions like removing the connection from a list?

Handle routine:

func handleConnection(conn net.Conn, rec chan string) {
   var item QueItem
   buf := make([]byte, bufSize)
   l, err := conn.Read(buf)
   if err != nil || l < 0 {
    fmt.Println("Error reading from conn: ", conn)
    fmt.Println("Error reading: ", err)
   }

   err = json.Unmarshal(buf[:l], &item)
   if err != nil {
     fmt.Println("Error converting to JSON", jErr)
   }

  fmt.Printf("Received : %+v
", item)
  fmt.Println("recived from:", conn.RemoteAddr())
  rec <- item.IP
}

TCPserver:

for {
    conn, err := ln.Accept()
    if err != nil {
        fmt.Println("No accept", err)
        log.Println("Unable to accept connection", err)
    }
    go handleConnection(conn, recived)
}