func init() {
	//跨域設置
	var FilterGateWay = func(ctx *context.Context) {
		ctx.ResponseWriter.Header().Set("Access-Control-Allow-Origin", "*")
		//允許訪問源
		ctx.ResponseWriter.Header().Set("Access-Control-Allow-Methods", "POST, GET, PUT, OPTIONS")
		//允許post訪問
		ctx.ResponseWriter.Header().Set("Access-Control-Allow-Headers", "Access-Control-Allow-Origin,ContentType,Authorization,accept,accept-encoding, authorization, content-type") //header的類型
		ctx.ResponseWriter.Header().Set("Access-Control-Max-Age", "1728000")
		ctx.ResponseWriter.Header().Set("Access-Control-Allow-Credentials", "true")
	}
	beego.InsertFilter("*", beego.BeforeRouter, FilterGateWay)
	//路由設置
	ns := beego.NewNamespace("/v1",
		// NBSP用于跨域請求
		beego.NSRouter("*", &controllers.BaseController{}, "OPTIONS:Options"))
	beego.AddNamespace(ns)
//=======================    下面再寫自己的代碼    =======================
beego.Router("/", &controllers.MainController{})
// .....
}

// @Title test
// @Description 預檢
// @Success 200 {string} "hello world"
// @router / [options]
func (c *BaseController) Options() {
    c.Data["json"] = map[string]interface{}{"status": 200, "message": "ok", "moreinfo": ""}
    c.ServeJSON()
}
//===============	下面再寫自己的代碼		=======================
// .....