Golang 随机获取本机可用端口
// 获取可用端口
func GetAvailablePort() (int, error) {
address, err := net.ResolveTCPAddr("tcp", fmt.Sprintf("%s:0", "0.0.0.0"))
if err != nil {
return 0, err
}
listener, err := net.ListenTCP("tcp", address)
if err != nil {
return 0, err
}
defer listener.Close()
return listener.Addr().(*net.TCPAddr).Port, nil
}
// 判断端口是否可以（未被占用）
func IsPortAvailable(port int) bool {
address := fmt.Sprintf("%s:%d", "0.0.0.0", port)
listener, err := net.Listen("tcp", address)
if err != nil {
log.Infof("port %s is taken: %s", address, err)
return false
}
defer listener.Close()
return true
}