func main() {
        db = models.DB{}
        db.Open()
        r := mux.NewRouter()
        r.HandleFunc("/index", IndexHandler).Methods("GET")
        r.HandleFunc("/add", AddHandler).Methods("POST")
        r.HandleFunc("/knife/{id}", KnifeHandler).Methods("GET")

        r.PathPrefix("/").Handler(http.FileServer(http.Dir("./")))

        http.Handle("/", r)
        http.ListenAndServe(":1111", nil)
        db.Close()
    }

func KnifeHandler(w http.ResponseWriter, r *http.Request) {
    vars := mux.Vars(r)
    tmpl, _ := template.ParseFiles("eachKnife.html")
    tmpl.ExecuteTemplate(w, "knife", nil)
    ID := vars["id"]
    knife := db.GetKnife(ID)
    knifeJSON, _ := json.Marshal(knife)
    w.Write(knifeJSON)
}