dva 路由权鉴

  history.listen(location => {
        const uid = sessionStorage.getItem(‘uid‘) || localStorage.getItem("uid")
        console.log(location.pathname)
        if (location.pathname === ‘/‘ || location.pathname === ‘/login‘) {
            if (uid) {
                app._store.dispatch(routerRedux.replace(‘/backstage‘))
              }
        }else{
            if(!uid){
                app._store.dispatch(routerRedux.push(‘/‘))
            }
        }