1. package main
    2.  
    3. import (
    4.   "fmt"
    5.   "log"
    6.   "net/http"
    7.   "time"
    8.  
    9.   "github.com/urfave/negroni"
    10.  
    11. func main() {
    12.   mux := http.NewServeMux()
    13.   mux.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) {
    14.     fmt.Fprintf(w, "Welcome to the home page!")
    15.   })
    16.  
    17.   n := negroni.Classic() // 导入一些预设的中间件
    18.   n.UseHandler(mux)
    19.   s := &http.Server{
    20.     Addr:           ":8080",
    21.     Handler:        n,
    22.     ReadTimeout:    10 * time.Second,
    23.     WriteTimeout:   10 * time.Second,
    24.     MaxHeaderBytes: 1 << 20,
    25.   }
    26.   log.Fatal(s.ListenAndServe())
    27. }