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package NetUtil
import (
"bytes"
"fmt"
"io"
"net"
"net/http"
"strings"
"time"
)
/**
功能获取服务器的第一个网卡MAC地址
作者:黄海
时间2020-01-19
*/
func GetMacAddrs() (macAddrs []string) {
netInterfaces, err := net.Interfaces()
if err != nil {
fmt.Printf("fail to get net interfaces: %v", err)
return macAddrs
}
for _, netInterface := range netInterfaces {
macAddr := netInterface.HardwareAddr.String()
if len(macAddr) == 0 {
continue
}
macAddrs = append(macAddrs, strings.ToUpper(macAddr))
}
return macAddrs
}
// 发送GET请求
// url 请求地址
// response 请求返回的内容
func Get(url string) string {
// 超时时间5秒
client := &http.Client{Timeout: 5 * time.Second}
resp, err := client.Get(url)
if err != nil {
panic(err)
}
defer resp.Body.Close()
var buffer [512]byte
result := bytes.NewBuffer(nil)
for {
n, err := resp.Body.Read(buffer[0:])
result.Write(buffer[0:n])
if err != nil && err == io.EOF {
break
} else if err != nil {
panic(err)
}
}
return result.String()
}