菜单栏增加单页面刷新功能

1.移除带参路由来回切换data
2.只刷新当前router，不影响其他已缓存的router

src/views/demo/playground/page-cache/params.vue

@@ -39,38 +39,8 @@ export default {
   },
   data () {
     return {
-      datas: [],
       data: { value: '' }
     }
-  },
-  methods: {
-    switchData (id) {
-      let data = this.datas[id]
-      if (!data) {
-        data = { value: '' }
-        this.datas[id] = data
-      }
-      this.data = data
-    }
-  },
-  // 第一次进入或从其他组件对应路由进入时触发
-  beforeRouteEnter (to, from, next) {
-    const id = to.params.id
-    if (id) {
-      next(instance => instance.switchData(id))
-    } else {
-      next(new Error('未指定ID'))
-    }
-  },
-  // 在同一组件对应的多个路由间切换时触发
-  beforeRouteUpdate (to, from, next) {
-    const id = to.params.id
-    if (id) {
-      this.switchData(id)
-      next()
-    } else {
-      next(new Error('未指定ID'))
-    }
   }
 }
 </script>

src/views/system/function/refresh/index.js

@@ -1,6 +1,7 @@
 export default {
   beforeRouteEnter (to, from, next) {
-    next(instance => instance.$router.replace(from.fullPath))
+    from.meta[from.path] = Date.now()
+    next(instance => instance.$router.replace({ path: from.fullPath, meta: from.meta }))
   },
   render: h => h()
 }