web-login/src/router/before.js

import store from "@/store/index";

const checkLogin = router => {
  router.beforeEach((to, form, next) => {
    store.commit("setUser");
    if (to.name === "login") {
      next();
      return;
    }
    let user = store.state.user;
    if (user) {
      next();
    }
    //下面是没登录的情况,需要跳转页面到用户未登录页
    else next({ name: "login" });
  });
};
export default checkLogin;