go语言实现http服务端与客户端的例子

package main
 
import (
 "flag"
 "fmt"
 "net/http"
)
 
func main() {
 host := flag.String("host", "127.0.0.1", "listen host")
 port := flag.String("port", "80", "listen port")
 
 http.HandleFunc("/hello", Hello)
 
 err := http.ListenAndServe(*host+":"+*port, nil)
 
 if err != nil {
 panic(err)
 }
}
 
func Hello(w http.ResponseWriter, req *http.Request) {
<p> w.Write([]byte("Hello World"))</p>}

package main
 
import (
 "fmt"
 "io/ioutil"
 "net/http"
)
 
func main() {
 response, _ := http.Get("http://localhost:80/hello")
 defer response.Body.Close()
 body, _ := ioutil.ReadAll(response.Body)
 fmt.Println(string(body))
}