mirror of
https://github.com/gopl-zh/gopl-zh.github.com.git
synced 2024-11-05 05:53:45 +00:00
38 lines
836 B
Go
38 lines
836 B
Go
|
// Copyright © 2016 Alan A. A. Donovan & Brian W. Kernighan.
|
||
|
|
// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
|
||
|
|
|
||
|
|
// See page 21.
|
||
|
|
|
||
|
|
// Server3 is an "echo" server that displays request parameters.
|
||
|
|
package main
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"log"
|
||
|
|
"net/http"
|
||
|
|
)
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
http.HandleFunc("/", handler)
|
||
|
|
log.Fatal(http.ListenAndServe("localhost:8000", nil))
|
||
|
|
}
|
||
|
|
|
||
|
|
//!+handler
|
||
|
|
// handler echoes the HTTP request.
|
||
|
|
func handler(w http.ResponseWriter, r *http.Request) {
|
||
|
|
fmt.Fprintf(w, "%s %s %s\n", r.Method, r.URL, r.Proto)
|
||
|
|
for k, v := range r.Header {
|
||
|
|
fmt.Fprintf(w, "Header[%q] = %q\n", k, v)
|
||
|
|
}
|
||
|
|
fmt.Fprintf(w, "Host = %q\n", r.Host)
|
||
|
|
fmt.Fprintf(w, "RemoteAddr = %q\n", r.RemoteAddr)
|
||
|
|
if err := r.ParseForm(); err != nil {
|
||
|
|
log.Print(err)
|
||
|
|
}
|
||
|
|
for k, v := range r.Form {
|
||
|
|
fmt.Fprintf(w, "Form[%q] = %q\n", k, v)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//!-handler
|