左侧菜单导航
一、一级菜单
在之前的Aside.vue中去实现代码,一级菜单其实非常的简单,直接用el-menu 和el-menu-item 就行,Aside.vue代码如下:
<template>
<el-menu>
<el-menu-item>一级菜单1</el-menu-item>
<el-menu-item>一级菜单2</el-menu-item>
<el-menu-item>一级菜单3</el-menu-item>
</el-menu>
</template>
<script>
export default {
name: "Aside",
};
</script>
<style scoped>
</style>
- 设置菜单背景颜色和文字颜色
- 在el-menu中设置 background-color 和 text-color 属性
- 设置选中后菜单文字颜色
- 设置 active-text-color 属性,但是必须在需要生效的子菜单中设置index属性,否则不生效,先不设置index
- 设置默认的选中菜单
- 设置default-active为对应的index值即可
- 比如我设置默认选中第2个菜单,第2个菜单的index为2,所以我们在el-menu中加入 default-active=“2”
- 在菜单中加入图标
- 用 i 标签即可,在菜单名前面加入
<i class=“el-icon-XXX”>
,XXX是图标的名称。
- 用 i 标签即可,在菜单名前面加入
效果如图所示:
一级菜单全部代码
<template>
<el-menu
background-color="#545c64"
text-color="#ffffff"
active-text-color="#ffd04b"
default-active="2"
>
<el-menu-item index="1"
><i class="el-icon-location"></i>一级菜单1</el-menu-item
>
<el-menu-item index="2"
><i class="el-icon-document"></i>一级菜单2</el-menu-item
>
<el-menu-item index="3"
><i class="el-icon-setting"></i>一级菜单3</el-menu-item
>
</el-menu>
</template>
<script>
export default {
name: "Aside",
};
</script>
<style scoped>
.el-icon-location,
.el-icon-document,
.el-icon-setting {
display: inline-flex;
align-items: center;
justify-content: center;
}
</style>
二、二级菜单
<div>
<el-menu background-color="#545c64" text-color="#ffffff"
active-text-color="#ffd04b" default-active="2" >
<el-submenu index="1">
<template slot="title"><i class="el-icon-location"></i><span>一级菜单1</span></template>
<el-menu-item index="1-1">选项1</el-menu-item>
<el-menu-item index="1-2">选项2</el-menu-item>
</el-submenu>
<el-menu-item index="2"><i class="el-icon-document"></i>一级菜单2</el-menu-item>
<el-menu-item index="3"><i class="el-icon-setting"></i>一级菜单3</el-menu-item>
</el-menu>
</div>
修改步骤:
- 将
el-menu
修改为el-submenu
- 按钮名称、图标用
template
标签包裹,必须加入slot="title"
属性,否则菜单样式不对。 - 加入新的两个
el-menu-item
。
参考代码:
<template>
<div>
<el-menu
background-color="#545c64"
text-color="#ffffff"
active-text-color="#ffd04b"
default-active="2"
>
<el-submenu index="1">
<template slot="title"
><i class="el-icon-location"></i><span>一级菜单1</span></template
>
<el-menu-item index="1-1">选项1</el-menu-item>
<el-menu-item index="1-2">选项2</el-menu-item>
</el-submenu>
<el-menu-item index="2"
><i class="el-icon-document"></i>一级菜单2</el-menu-item
>
<el-menu-item index="3"
><i class="el-icon-setting"></i>一级菜单3</el-menu-item
>
</el-menu>
</div>
</template>
<script>
export default {
name: "Aside",
};
</script>
<style scoped>
.el-submenu {
height: auto;
}
.el-icon-location,
.el-icon-document,
.el-icon-setting {
display: inline-flex;
align-items: center;
justify-content: center;
}
</style>
三、三级菜单
参考代码:
<template>
<div>
<el-menu
background-color="#545c64"
text-color="#ffffff"
active-text-color="#ffd04b"
default-active="2"
>
<el-submenu index="1">
<template slot="title"
><i class="el-icon-location"></i><span>一级菜单1</span></template
>
<el-submenu index="1-1">
<template slot="title"
><i class="el-icon-location"></i><span>选项1</span></template
>
<el-menu-item index="1-1-1"
><i class="el-icon-document"></i>选项1-1</el-menu-item
>
<el-menu-item index="1-1-2"
><i class="el-icon-document"></i>选项1-2</el-menu-item
>
</el-submenu>
<el-submenu index="1-2">
<template slot="title"
><i class="el-icon-location"></i><span>选项2</span></template
>
<el-menu-item index="1-2-1"
><i class="el-icon-setting"></i>选项2-1</el-menu-item
>
<el-menu-item index="1-2-2"
><i class="el-icon-setting"></i>选项2-2</el-menu-item
>
</el-submenu>
</el-submenu>
<el-menu-item index="2"
><i class="el-icon-document"></i>一级菜单2</el-menu-item
>
<el-menu-item index="3"
><i class="el-icon-setting"></i>一级菜单3</el-menu-item
>
</el-menu>
</div>
</template>
<script>
export default {
name: "Aside",
};
</script>
<style scoped>
.el-submenu {
height: auto;
}
.el-icon-location,
.el-icon-document,
.el-icon-setting {
display: inline-flex;
align-items: center;
justify-content: center;
}
</style>
1、加入相关事件
全部参考代码:
<template>
<div>
<el-menu
background-color="#545c64"
text-color="#ffffff"
active-text-color="#ffd04b"
default-active="2"
@open="handleOpen"
@close="handleClose"
@select="handSelect"
>
<el-submenu index="1">
<template slot="title"
><i class="el-icon-location"></i><span>一级菜单1</span></template
>
<el-submenu index="1-1">
<template slot="title"
><i class="el-icon-location"></i><span>选项1</span></template
>
<el-menu-item index="1-1-1"
><i class="el-icon-document"></i>选项1-1</el-menu-item
>
<el-menu-item index="1-1-2"
><i class="el-icon-document"></i>选项1-2</el-menu-item
>
</el-submenu>
<el-submenu index="1-2">
<template slot="title"
><i class="el-icon-location"></i><span>选项2</span></template
>
<el-menu-item index="1-2-1"
><i class="el-icon-setting"></i>选项2-1</el-menu-item
>
<el-menu-item index="1-2-2"
><i class="el-icon-setting"></i>选项2-2</el-menu-item
>
</el-submenu>
</el-submenu>
<el-menu-item index="2"
><i class="el-icon-document"></i>一级菜单2</el-menu-item
>
<el-menu-item index="3"
><i class="el-icon-setting"></i>一级菜单3</el-menu-item
>
</el-menu>
</div>
</template>
<script>
export default {
name: "Aside",
methods: {
handleOpen(key, keyPath) {
console.log("打开:", key, keyPath);
},
handleClose(key, keyPath) {
console.log("关闭:", key, keyPath);
},
handSelect(key, keyPath) {
console.log("选择:", key, keyPath);
},
},
};
</script>
<style scoped>
.el-submenu {
height: auto;
}
.el-icon-location,
.el-icon-document,
.el-icon-setting {
display: inline-flex;
align-items: center;
justify-content: center;
}
</style>
四、菜单点击跳转
1. 创建新页面
在 Main/
文件夹下创建三个页面,如图所示
代码如下:
<template>
<div>
这是Main1
</div>
</template>
<script>
export default {
name: "Main1"
}
</script>
<style scoped>
</style>
2. 配置路由
- 安装配置路由
- 在src下创建
router/index.js
- 创建了主路由index,就是进入的主页面
- 这3个index子路由,用来跳转,分别对应 main1、main2、main3 几个页面。
- 子路由的跳转位置为,index的Main位置,因为我们管理系统只需要Main位置发生改变,头部、左边导航、下方footer是不需要改变的。
安装路由
npm install vue-router@3.5.2
在main.js中注册router,让路由生效
router/index.js
代码如下:
import VueRouter from "vue-router"
import Index from "@/components/Index";
const routes = [
//一级路由
{
path: '/index',
name: 'index',
component: Index,
//路由嵌套
children:[
{path: '/index/menu1',component: () => import('@/components/Main/Main1.vue')},
{path: '/index/menu2',component: () => import('@/components/Main/Main2.vue')},
{path: '/index/menu3',component: () => import('@/components/Main/Main3.vue')}
]
}
]
const router = new VueRouter({
mode:'history',
routes
})
export default router;
在原来的Index.vue页面,设置路由跳转位置,这里我们在原来的<Main />
位置修改位 router-view
即可。
3. 菜单中加入路由配置
- 这里我们使用一级菜单,简单方便,修改
Aside/index.vue
的代码。 - 在
el-menu
里面加入router
属性 - 在
el-menu-item
的index,设置对应的子路由
代码参考如下:
<template>
<div style="height: 100%">
<el-menu
background-color="#545c64"
text-color="#ffffff"
active-text-color="#ffd04b"
class="el-menu-vertical-demo"
router
>
<el-menu-item index="/index/menu1"
><i class="el-icon-location"></i>一级菜单1</el-menu-item
>
<el-menu-item index="/index/menu2"
><i class="el-icon-document"></i>一级菜单2</el-menu-item
>
<el-menu-item index="/index/menu3"
><i class="el-icon-setting"></i>一级菜单3</el-menu-item
>
</el-menu>
</div>
</template>
<script>
export default {
name: "Aside",
};
</script>
<style scoped>
.el-icon-location,
.el-icon-document,
.el-icon-setting {
display: inline-flex;
align-items: center;
justify-content: center;
}
</style>
我们进入index主路由,发现页面是空的
点击左侧导航菜单,就会有对应的页面内容
4、处理默认的Main窗口为空的情况
设置默认的跳转位置,设置如下:
- 在子路由中添加一个新的路由,用来默认跳转
- 在主路由中配置redirect 值为这个子路由
router/index.js
的代码如下
import VueRouter from "vue-router"
import Index from "@/components/Index";
const routes = [
//一级路由
{
path: '/index',
name: 'index',
component: Index,
redirect: 'index/Main',
//路由嵌套
children:[
{path: '/index/Main',component: () => import('@/components/Main/index.vue')},
{path: '/index/menu1',component: () => import('@/components/Main/Main1.vue')},
{path: '/index/menu2',component: () => import('@/components/Main/Main2.vue')},
{path: '/index/menu3',component: () => import('@/components/Main/Main3.vue')}
]
}
]
const router = new VueRouter({
mode:'history',
routes
})
export default router;
五、动态左侧菜单导航
1、动态实现一级菜单
实现代码:
<template>
<div style="height: 100%">
<el-menu
background-color="#545c64"
text-color="#ffffff"
active-text-color="#ffd04b"
class="el-menu-vertical-demo"
router
>
<el-menu-item
:index="item.path"
v-for="item in menu_data"
:key="item.name"
>
<i :class="item.icon"></i>{{ item.name }}
</el-menu-item>
</el-menu>
</div>
</template>
<script>
export default {
name: "Aside",
data() {
return {
menu_data: [
{
name: "一级菜单1",
icon: "el-icon-location",
path: "/index/menu1",
},
{
name: "一级菜单2",
icon: "el-icon-document",
path: "/index/menu2",
},
{
name: "一级菜单3",
icon: "el-icon-setting",
path: "/index/menu3",
},
],
};
},
};
</script>
<style scoped>
.el-icon-location,
.el-icon-document,
.el-icon-setting {
display: inline-flex;
align-items: center;
justify-content: center;
}
</style>
2、动态实现二级菜单
参考代码:
<template>
<div style="height: 100%">
<el-menu
background-color="#545c64"
text-color="#ffffff"
active-text-color="#ffd04b"
class="el-menu-vertical-demo"
router
>
<el-submenu :index="item.path" v-for="item in menu_data" :key="item.name">
<template slot="title"
><i :class="item.icon"></i><span>{{ item.name }}</span></template
>
<el-menu-item
:index="child.path"
v-for="child in item.child"
:key="child.name"
>
<i :class="child.icon"></i>{{ child.name }}
</el-menu-item>
</el-submenu>
</el-menu>
</div>
</template>
<script>
export default {
name: "Aside",
data() {
return {
menu_data: [
{
name: "一级菜单1",
icon: "el-icon-location",
path: "/index/menu1",
child: [
{
name: "二级菜单1-1",
icon: "el-icon-user",
path: "/index/menu11",
},
{
name: "二级菜单1-2",
icon: "el-icon-user-solid",
path: "/index/menu12",
},
],
},
{
name: "一级菜单2",
icon: "el-icon-document",
path: "/index/menu2",
child: [
{
name: "二级菜单2-1",
icon: "el-icon-star-on",
path: "/index/menu21",
},
{
name: "二级菜单2-2",
icon: "el-icon-star-off",
path: "/index/menu22",
},
],
},
{
name: "一级菜单3",
icon: "el-icon-setting",
path: "/index/menu3",
child: [
{
name: "二级菜单3-1",
icon: "el-icon-s-help",
path: "/index/menu31",
},
{
name: "二级菜单3-2",
icon: "el-icon-help",
path: "/index/menu32",
},
],
},
],
};
},
};
</script>
<style scoped>
.el-submenu{
height: auto;
}
.el-icon-help,
.el-icon-s-help,
.el-icon-star-off,
.el-icon-star-on,
.el-icon-user-solid,
.el-icon-user,
.el-icon-location,
.el-icon-document,
.el-icon-setting {
display: inline-flex;
align-items: center;
justify-content: center;
}
</style>