package main

import (
	"net/http"
	"html/template"
	"log"
)

// 渲染模板
func render( writer http.ResponseWriter,  tplFile string, ctx map[string] string) {
	tpl, err := template.ParseFiles( tplFile )
	if err != nil {
		http.Error( writer, err.Error(), http.StatusInternalServerError )
		return
	}
	tpl.Execute( writer, ctx )
}

// 主页操作
func indexHandler( writer http.ResponseWriter, req *http.Request ) {
	context := make(map[string]string)
	context["title"] = "index page"
	context["info"] = "this is a go web"
	render( writer, "template/index.html", context )
	return
}


// main函数
func main() {
	// 主页
	http.HandleFunc("/", indexHandler)

	// 加载静态资源
	http.Handle("/static/js/", http.FileServer(http.Dir("./")))
	http.Handle("/static/css/", http.FileServer(http.Dir("./")))
    
	err := http.ListenAndServe(":8080", nil)
	if err != nil {
		log.Fatal("ListenAndServe:", err.Error())
	}
}