0
点赞
收藏
分享

微信扫一扫

Vue+ElementUi实现菜单循环

耶也夜 03-03 07:00 阅读 4

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>

在这里插入图片描述

  1. 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
  2. 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
  3. 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”
  4. 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。

效果如图所示:
在这里插入图片描述
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:

  1. el-menu 修改为 el-submenu
  2. 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。
  3. 加入新的两个 el-menu-item

在这里插入图片描述
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

在这里插入图片描述
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

在这里插入图片描述

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

Main/ 文件夹下创建三个页面,如图所示
在这里插入图片描述
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
在这里插入图片描述

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。
在这里插入图片描述

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。
  • el-menu里面加入 router属性
  • 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
在这里插入图片描述
点击左侧导航菜单,就会有对应的页面内容
在这里插入图片描述

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;

在这里插入图片描述

五、动态左侧菜单导航

在这里插入图片描述

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

在这里插入图片描述
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>
举报

相关推荐

0 条评论