golang获取本地服务器IP golang获取本地服务器IPfunc ExternalIP() (net.IP, error) { ifaces, err := net.Interfaces() if err != nil { return nil, err } for _, iface := range ifaces { if iface.Flags&net.FlagUp == 0 { continue // interface down } if iface.Flags&net.FlagLoopback != 0 { continue // loopback interface } addrs, err := iface.Addrs() if err != nil { return nil, err } for _, addr := range addrs { ip := GetIpFromAddr(addr) if ip == nil { continue } return ip, nil } } return nil, errors.New("connected to the network?") } func GetIpFromAddr(addr net.Addr) net.IP { var ip net.IP switch v := addr.(type) { case *net.IPNet: ip = v.IP case *net.IPAddr: ip = v.IP } if ip == nil || ip.IsLoopback() { return nil } ip = ip.To4() if ip == nil { return nil // not an ipv4 address } return ip } // 调用方法 ip, err := other.ExternalIP() if err != nil { fmt.Println(err) } fmt.Println(ip)