我想将2个网址绑定到1个功能,如下所示。
router.HandleFunc("/_Users", controller.AddResource)
router.HandleFunc("/Resources/{resourceName}", controller.AddResource)
" controller.AddResource"是一个全球性的职能。代码如下:
function AddResource(req *http.Request, w http.ResponseWriter){
vars := mux.Vars(req)
resourceName := vars["resourceName"]
data = request.Body
AddDataToResource(resourceName, data)
}
那么如何在第一个路由器中设置 vars(resourceName =' _User')?
答案 0 :(得分:2)
创建一个设置mux var:
的处理程序包装器type setVarWrapper struct {
fn func(http.ResponseWriter, *http.Request)
name string
value string
}
func (h *setVarWrapper) ServeHTTP(w http.ResponseWriter, r *http.Request) {
mux.Vars(req)[h.name] = h.value
h.fn(w, r)
}
包裹用户控制器:
router.Handle("/_Users, &setVarWrapper{fn:controller.AddResource, name:"resourceName", value:"_User"})
更简单的选择是编写一个调用通用控制器的AddUser函数:
function addUser(req *http.Request, w http.ResponseWriter){
mux.Vars(req)["resourceName"] = "_User"
controller.AddResource(w, req)
}
router.HandleFunc("/_Users", addUser)
或许更简单的是在处理程序中检查“”:
function AddResource(req *http.Request, w http.ResponseWriter){
vars := mux.Vars(req)
resourceName := vars["resourceName"]
if resourceName == "" {
resourceName = "_User"
}
data = request.Body
AddDataToResource(resourceName, data)
}