http - 发送带参数的GET请求得到301状态码

Question

我使用 mux 设置了一个非常简单的 Go 服务器代码，当我将 curl 与 GET 请求参数(localhost: 8080/suggestions/?locale=en)，我得到 301 状态代码(永久移动)。但是当没有 get 参数时，它工作得很好。

func main() {
router := mux.NewRouter().StrictSlash(true)
router.HandleFunc("/suggestions", handleSuggestions).Methods("GET")
log.Fatal(http.ListenAndServe("localhost:8080", router))
}

有人可以告诉我这个吗。谢谢

Answer 1

go doc mux.StrictSlash 指出:

func (r *Router) StrictSlash(value bool) *Router
    StrictSlash defines the trailing slash behavior for new routes. The initial
    value is false.

    When true, if the route path is "/path/", accessing "/path" will redirect to
    the former and vice versa. In other words, your application will always see
    the path as specified in the route.

    When false, if the route path is "/path", accessing "/path/" will not match
    this route and vice versa.

    Special case: when a route sets a path prefix using the PathPrefix() method,
    strict slash is ignored for that route because the redirect behavior can't
    be determined from a prefix alone. However, any subrouters created from that
    route inherit the original StrictSlash setting.

因此，为了避免重定向，您可以使用 mux.NewRouter().StrictSlash(false) 等同于 mux.NewRouter() 或使用带有尾部斜线即 router.HandleFunc("/suggestions/", handleSuggestions).Methods("GET")