golang获取本机IP

package main

import (
	"fmt"
	"net"
	"strings"
)

func main() {
	ipList, err := GetLocalIPList()
	if err != nil {
		fmt.Printf("err=%v\n", err)
		return
	}
	for name := range ipList {
		fmt.Printf("%v, %v\n", name, ipList[name])
	}
}

// 返回map[网卡名]ip地址
func GetLocalIPList() (map[string]string, error) {
	interfaceList, err := net.Interfaces()
	if err != nil {
		return nil, err
	}
	var byName *net.Interface
	var addrList []net.Addr
	var oneAddrs []string
	ipList := make(map[string]string, len(interfaceList))
	for i := range interfaceList {
		byName, err = net.InterfaceByName(interfaceList[i].Name)
		if err != nil {
			return nil, err
		}
		addrList, err = byName.Addrs()
		if err != nil {
			return nil, err
		}
		for ii := range addrList {
			oneAddrs = strings.SplitN(addrList[ii].String(), "/", 2)
			ipList[interfaceList[i].Name] = oneAddrs[0]
		}
	}
	return ipList, nil
}