Golang Exercise: HTTP Handlers

Code:

package main

import (
 "fmt"
 "log"
 "net/http"
)

type String string

func (h String) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 fmt.Fprint(w, h)
}

type Struct struct {
    Greeting string
    Punct    string
    Who      string
}

func (h *Struct) ServeHTTP(w http.ResponseWriter, r*http.Request){
 fmt.Fprintf(w, "%v %v %v", h.Greeting, h.Punct, h.Who)
}


func main() {
 // your http.Handle calls here
 http.Handle("/string", String("I'm a good man."))
 http.Handle("/struct", &Struct{"Hello", ":", "Gophers! 你好吗？"})
 log.Fatal(http.ListenAndServe("localhost:4000", nil))
}


Call example:

http://localhost:4000/struct

http://localhost:4000/string

Reference:

http://tour.golang.org/methods/14