簡単なHTTPサーバー

sample.go

package main

import (
  "fmt"
  "net/http"
)


type String string

type Struct struct {
  Greeting string
  Punct    string
  Who      string
}


func ( s String ) ServeHTTP ( w http.ResponseWriter, r *http.Request ) {
  fmt.Println( "Served", r )
  fmt.Fprint( w, s )
}

func ( s Struct ) ServeHTTP ( w http.ResponseWriter, r *http.Request ) {
  fmt.Println( "Served", r )
  fmt.Fprint( w, s.Greeting, s.Punct, s.Who )
}

func httpHandler ( w http.ResponseWriter, r *http.Request ) {
  fmt.Fprint( w, "Hello World! ( func )" )
}


func main() {
  http.Handle( "/string", String( "I'm a frayed knot." ) )
  http.Handle( "/struct", &Struct{ "Hello", ":", "Gophers!" } )
  http.HandleFunc( "/func", httpHandler )
  http.ListenAndServe( "localhost:4000", nil )
  http.Handle( "/struct_out", &Struct{ "Out", ":", "Gophers!" } )
}