ADD file via upload

flower_user_front/src/main.js

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+import Vue from 'vue'
+import App from './App.vue'
+import './plugins/axios'
+import router from './router'
+import store from './store'
+import ElementUI from 'element-ui';
+import 'element-ui/lib/theme-chalk/index.css';
+import Cookie from "js-cookie";
+
+Vue.config.productionTip = false
+Vue.use(ElementUI);
+
+//添加全局前置导航守卫
+router.beforeEach((to,from,next) => {
+  //判断token是否存在
+  const token = Cookie.get('token')
+  //token不存在且当前不在登录或注册页面,说明用户未登录,跳转至登录页面
+  if (!token && to.name === 'register'){
+    next()
+  }
+  else if(!token && to.name === 'login'){
+    next()
+  }
+  //token不存在且当前为游客模式，放行
+  else if (!token && to.name !== 'visitor'){
+    next({name:'visitor'})
+  }
+  else if(token && to.name === 'login'){ //token存在且当前页面为登录页面，用户已登录，跳转至首页
+    next({name:'home'})
+  }
+  else{
+    next()
+  }
+})
+
+new Vue({
+  router,
+  store,
+  el: '#app',
+  render: h => h(App)
+}).$mount('#app')