package main
import (
"fmt"
"net/http"
"time"
"net"
)
var url = []string{
"http://www.baidu.com",
"http://google.com",
"http://taobao.com",
}
func main() {
for _, v := range url {
c := http.Client{
Transport: &http.Transport{
Dial: func (network, addr string)(net.Conn, error) {
timeout := time.Second*2
return net.DialTimeout(network, addr, timeout)
},
},
}
resp, err := c.Head(v)
if err != nil {
fmt.Printf("head %s failed, err: %v\n", v, err)
continue
}
fmt.Printf("head succ, status: %v\n", resp.Status)
}
}
output
head succ, status: 200 OK
head http://google.com failed, err: Head http://google.com: dial tcp [2404:6800:4008:802::200e]:80: i/o timeout
head succ, status: 200 OK
