refactor sidebar && add nested demo

src/icons/svg/nested.svg

+<?xml version="1.0" standalone="no"?><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"><svg t="1529559567446" class="icon" style="" viewBox="0 0 1167 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="1767" xmlns:xlink="http://www.w3.org/1999/xlink" width="227.9296875" height="200"><defs><style type="text/css"></style></defs><path d="M0.015952 74.459413A2.286 2.286 1440 1 0 145.85218 74.459413 2.286 2.286 1440 1 0 0.015952 74.459413zM291.720312 1.525347 1166.801488 1.525347 1166.801488 147.361574 291.720312 147.361574zM291.720312 366.163773A2.286 2.286 1440 1 0 437.55654 366.163773 2.286 2.286 1440 1 0 291.720312 366.163773zM583.424672 293.229707 1166.801488 293.229707 1166.801488 439.065934 583.424672 439.065934zM291.720312 949.540588A2.286 2.286 1440 1 0 437.55654 949.540588 2.286 2.286 1440 1 0 291.720312 949.540588zM583.424672 876.638427 1166.801488 876.638427 1166.801488 1022.474654 583.424672 1022.474654zM583.424672 657.836228A2.286 2.286 1440 1 0 729.2609 657.836228 2.286 2.286 1440 1 0 583.424672 657.836228zM875.129032 584.934067 1166.801488 584.934067 1166.801488 730.770294 875.129032 730.770294z" p-id="1768"></path></svg>
\ No newline at end of file

src/router/index.js

@@ -72,6 +72,64 @@ export const constantRouterMap = [
     ]
   },
 
+  {
+    path: '/nested',
+    component: Layout,
+    redirect: '/nested/menu1',
+    name: 'nested',
+    meta: {
+      title: 'nested',
+      icon: 'nested'
+    },
+    children: [
+      {
+        path: 'menu1',
+        component: () => import('@/views/nested/menu1/index'), // Parent router-view
+        name: 'menu1',
+        meta: { title: 'menu1' },
+        children: [
+          {
+            path: 'menu1-1',
+            component: () => import('@/views/nested/menu1/menu1-1'),
+            name: 'menu1-1',
+            meta: { title: 'menu1-1' }
+          },
+          {
+            path: 'menu1-2',
+            component: () => import('@/views/nested/menu1/menu1-2'),
+            name: 'menu1-2',
+            meta: { title: 'menu1-2' },
+            children: [
+              {
+                path: 'menu1-2-1',
+                component: () => import('@/views/nested/menu1/menu1-2/menu1-2-1'),
+                name: 'menu1-2-1',
+                meta: { title: 'menu1-2-1' }
+              },
+              {
+                path: 'menu1-2-2',
+                component: () => import('@/views/nested/menu1/menu1-2/menu1-2-2'),
+                name: 'menu1-2-2',
+                meta: { title: 'menu1-2-2' }
+              }
+            ]
+          },
+          {
+            path: 'menu1-3',
+            component: () => import('@/views/nested/menu1/menu1-3'),
+            name: 'menu1-3',
+            meta: { title: 'menu1-3' }
+          }
+        ]
+      },
+      {
+        path: 'menu2',
+        component: () => import('@/views/nested/menu2/index'),
+        meta: { title: 'menu2' }
+      }
+    ]
+  },
+
   { path: '*', redirect: '/404', hidden: true }
 ]
 

src/views/layout/components/Sidebar/SidebarItem.vue

 <template>
-  <div class="menu-wrapper">
-    <template v-for="item in routes" v-if="!item.hidden&&item.children">
+  <div v-if="!item.hidden&&item.children" class="menu-wrapper">
 
-      <router-link v-if="hasOneShowingChildren(item.children) && !item.children[0].children&&!item.alwaysShow" :to="item.path+'/'+item.children[0].path"
-        :key="item.children[0].name">
-        <el-menu-item :index="item.path+'/'+item.children[0].path" :class="{'submenu-title-noDropdown':!isNest}">
+      <router-link v-if="hasOneShowingChildren(item.children) && !item.children[0].children&&!item.alwaysShow" :to="resolvePath(item.children[0].path)">
+        <el-menu-item :index="resolvePath(item.children[0].path)" :class="{'submenu-title-noDropdown':!isNest}">
           <svg-icon v-if="item.children[0].meta&&item.children[0].meta.icon" :icon-class="item.children[0].meta.icon"></svg-icon>
           <span v-if="item.children[0].meta&&item.children[0].meta.title" slot="title">{{item.children[0].meta.title}}</span>
         </el-menu-item>
       </router-link>
 
-      <el-submenu v-else :index="item.name||item.path" :key="item.name">
+      <el-submenu v-else :index="item.name||item.path">
         <template slot="title">
           <svg-icon v-if="item.meta&&item.meta.icon" :icon-class="item.meta.icon"></svg-icon>
           <span v-if="item.meta&&item.meta.title" slot="title">{{item.meta.title}}</span>
         </template>
 
         <template v-for="child in item.children" v-if="!child.hidden">
-          <sidebar-item :is-nest="true" class="nest-menu" v-if="child.children&&child.children.length>0" :routes="[child]" :key="child.path"></sidebar-item>
+          <sidebar-item :is-nest="true" class="nest-menu" v-if="child.children&&child.children.length>0" :item="child" :key="child.path" :base-path="resolvePath(child.path)"></sidebar-item>
 
-          <router-link v-else :to="item.path+'/'+child.path" :key="child.name">
-            <el-menu-item :index="item.path+'/'+child.path">
+          <router-link v-else :to="resolvePath(child.path)" :key="child.name">
+            <el-menu-item :index="resolvePath(child.path)">
               <svg-icon v-if="child.meta&&child.meta.icon" :icon-class="child.meta.icon"></svg-icon>
               <span v-if="child.meta&&child.meta.title" slot="title">{{child.meta.title}}</span>
             </el-menu-item>
@@ -28,20 +26,27 @@
         </template>
       </el-submenu>
 
-    </template>
   </div>
 </template>
 
 <script>
+import path from 'path'
+
 export default {
   name: 'SidebarItem',
   props: {
-    routes: {
-      type: Array
+    // route配置json
+    item: {
+      type: Object,
+      required: true
     },
     isNest: {
       type: Boolean,
       default: false
+    },
+    basePath: {
+      type: String,
+      default: ''
     }
   },
   methods: {
@@ -53,6 +58,9 @@ export default {
         return true
       }
       return false
+    },
+    resolvePath(...paths) {
+      return path.resolve(this.basePath, ...paths)
     }
   }
 }

src/views/layout/components/Sidebar/index.vue

@@ -9,7 +9,7 @@
       text-color="#bfcbd9"
       active-text-color="#409EFF"
     >
-      <sidebar-item :routes="routes"></sidebar-item>
+      <sidebar-item v-for="route in routes" :key="route.name" :item="route" :base-path="route.path"></sidebar-item>
     </el-menu>
   </el-scrollbar>
 </template>

src/views/nested/menu1/index.vue

+<template >
+  <div style="padding:30px;">
+    <el-alert title="menu 1" :closable="false">
+      <router-view />
+    </el-alert>
+  </div>
+</template>

src/views/nested/menu1/menu1-1/index.vue

+<template >
+  <div style="padding:30px;">
+    <el-alert title="menu 1-1" type="success" :closable="false">
+      <router-view />
+    </el-alert>
+  </div>
+</template>

src/views/nested/menu1/menu1-2/index.vue

+<template>
+  <div style="padding:30px;">
+    <el-alert title="menu 1-2" type="success" :closable="false">
+      <router-view />
+    </el-alert>
+  </div>
+</template>

src/views/nested/menu1/menu1-2/menu1-2-1/index.vue

+<template functional>
+  <div style="padding:30px;">
+    <el-alert title="menu 1-2-1" type="warning" :closable="false" />
+  </div>
+</template>

src/views/nested/menu1/menu1-2/menu1-2-2/index.vue

+<template functional>
+  <div style="padding:30px;">
+    <el-alert title="menu 1-2-2" type="warning" :closable="false" />
+  </div>
+</template>

src/views/nested/menu1/menu1-3/index.vue

+<template functional>
+  <div style="padding:30px;">
+    <el-alert title="menu 1-3" type="success" :closable="false" />
+  </div>
+</template>

src/views/nested/menu2/index.vue

+<template>
+  <div style="padding:30px;">
+    <el-alert title="menu 2" :closable="false" />
+  </div>
+</template>