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go/doc/codelab/wiki/part2.go
Russ Cox 44526cdbe0 non-pkg: gofix -r error -force=error
R=golang-dev, iant, r, r
CC=golang-dev
https://golang.org/cl/5307066
2011-11-01 22:06:05 -04:00

40 lines
716 B
Go

package main
import (
"fmt"
"http"
"io/ioutil"
)
type Page struct {
Title string
Body []byte
}
func (p *Page) save() error {
filename := p.Title + ".txt"
return ioutil.WriteFile(filename, p.Body, 0600)
}
func loadPage(title string) (*Page, error) {
filename := title + ".txt"
body, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
return &Page{Title: title, Body: body}, nil
}
const lenPath = len("/view/")
func viewHandler(w http.ResponseWriter, r *http.Request) {
title := r.URL.Path[lenPath:]
p, _ := loadPage(title)
fmt.Fprintf(w, "<h1>%s</h1><div>%s</div>", p.Title, p.Body)
}
func main() {
http.HandleFunc("/view/", viewHandler)
http.ListenAndServe(":8080", nil)
}