我正在尝试通过编写自定义未找到处理程序来调试404-not-found。这是我的代码。packagemainimport("database/sql""encoding/json""fmt""log""net/http""github.com/coopernurse/gorp"_"github.com/go-sql-driver/mysql""github.com/gorilla/mux")funcmain(){//CreateaMUXr:=mux.NewRouter()http.Handle("/",r)r.NotFoundHandler=http.HandlerFunc(NotFo

我就是无法让这个NotFoundHandler工作。如果它存在，我想在每个获取请求上提供一个静态文件，否​​则提供index.html。这是我目前的简化路由器:funcfooHandler()http.Handler{fn:=func(whttp.ResponseWriter,r*http.Request){w.Write([]byte("Foo"))}returnhttp.HandlerFunc(fn)}funcnotFound(whttp.ResponseWriter,r*http.Request){http.ServeFile(w,r,"public/index.html")}f