为什么使用 beego 框架开发时会遇到 'GetSysStatus' 方法不存在的错误？

beego.router("/", &controllers.maincontroller{}, "*:index")
beego.router("/login", &controllers.maincontroller{}, "*:login")
beego.router("/logout", &controllers.maincontroller{}, "*:logout")
beego.router("/profile", &controllers.maincontroller{}, "*:profile")
beego.router("/gettime", &controllers.maincontroller{}, "*:gettime")
// 新增路由
beego.router("/getsysstatus", &controllers.maincontroller{}, "*:getsysstatus")
beego.router("/help", &controllers.helpcontroller{}, "*:index")
beego.autorouter(&controllers.taskcontroller{})
beego.autorouter(&controllers.groupcontroller{})

beego.bconfig.webconfig.session.sessionon = true
beego.run()

// 获取系统时间
func (this *maincontroller) gettime() {
    out := make(map[string]interface{})
    out["time"] = time.Now().UnixNano() / int64(time.Millisecond)
    this.jsonresult(out)
}

// 获取系统状态 (新增方法)
func (this *maincontroller) getsysstatus() {
    out := make(map[string]interface{})
    out["time"] = 1
    this.jsonresult(out)
}

<code>panic: 'GetSysStatus' method doesn't exist in the controller MainController</code>