fixed: #825

web/src/permission.js

@@ -14,7 +14,26 @@ const getRouter = async() => {
     })
 }
 
+async function handleKeepAlive(to) {
+    if (to.matched && to.matched.length > 2) {
+        for (let i = 1; i < to.matched.length; i++) {
+            const element = to.matched[i - 1]
+            if (element.name === "layout") {
+                to.matched.splice(i, 1)
+                await handleKeepAlive(to)
+            }
+            // 如果没有按需加载完成则等待加载
+            if (typeof element.components.default === 'function') {
+                await element.components.default()
+                await handleKeepAlive(to)
+            }
+        }
+    }
+}
+
 router.beforeEach(async(to, from, next) => {
+    to.meta.matcheds =JSON.parse(JSON.stringify(to.matched)) 
+    handleKeepAlive(to)
     const token = store.getters['user/token']
         // 在白名单中的判断情况
     document.title = getPageTitle(to.meta.title)
@@ -35,7 +54,8 @@ router.beforeEach(async(to, from, next) => {
             if (!asyncRouterFlag) {
                 asyncRouterFlag++
                 await getRouter()
-        next({ ...to, replace: true })
+
+                next({...to, replace: true })
             } else {
                 if (to.matched.length) {
                     next()

web/src/view/layout/index.vue

@@ -152,7 +152,7 @@ export default {
       return this.$route.meta.title || '当前页面'
     },
     matched() {
-      return this.$route.matched
+      return this.$route.meta.matcheds
     }
   },
   created() {