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关于前端:vue配置文件自动生成路由和菜单

写在后面

每次反复写路由的时候是不是会感觉很烦,特地是我的项目大的时候,路由会有特地多,看都看不过去,所以这里我是有了一个 router.json 的配置文件来对路由做一些简略的配置,而后让路由和左侧菜单栏能够同时主动生成。

router.json

次要配置项如下:

{
  "name": "routerConfig",
  "menu": [{
    "id": "1", // 路由 id,不能反复
    "name": "home",// 路由名字
    "path": "/homePage",// 路由门路
    "label": "首页",// 菜单题目
    "selected": true,// 默认选中
    "icon": "el-icon-monitor",// 菜单显示图标
    "open": true,// 默认关上
    "component": "homePage/homePage.vue",// 组件路由
    "children": [ // 子菜单
      {
        "id": "3",
        "name": "getCover",
        "path": "/getCover",
        "label": "封面截取",
        "selected": false,
        "icon": "el-icon-scissors",
        "open": false,
        "component": "getCover/getCover.vue",
        "children": []}
    ]
  },{
    "id": "2",
    "name": "testPage",
    "path": "/testPage",
    "label": "测试",
    "selected": false,
    "icon": "el-icon-setting",
    "open": false,
    "component": "test/test.vue",
    "children": []},{
    "id": "5",
    "name": "testMenu",
    "path": "/testMenu",
    "label": "菜单测试",
    "selected": false,
    "icon": "el-icon-setting",
    "open": false,
    "component": "testMenu/testMenu.vue",
    "children": []}]
}

配置次要分为两局部,一部分因为菜单生成,一部分用于路由生成,当然两者也有共用的局部

路由生成

import Vue from 'vue'
import VueRouter from 'vue-router'
import ro from "element-ui/src/locale/lang/ro";
Vue.use(VueRouter)
// 引入配置文件 router.json
let routerMenu = require('@/config/router.json');
routerMenu = routerMenu.menu;
let menu = [];
// 配置路由
let formatRoute = function (routerMenu,menu){for(let i = 0; i < routerMenu.length; i++){
    let temp = {path: routerMenu[i].path,
      name: routerMenu[i].name,
      // 这块要留神
      // 用 require 这种形式引入的时候,会将你的 component 别离打包成不同
      // 的 js,加载的时候也是按需加载,只用拜访这个路由网址时才会加载
      // 这个 js
      component: resolve => require([`@/views/${routerMenu[i].component}`], resolve)
    };
    menu.push(temp);
    if(routerMenu[i].children && routerMenu[i].children.length > 0){
    // 递归生成子菜单的路由
      formatRoute(routerMenu[i].children,menu);
    }
  }
}
// 初始化
formatRoute(routerMenu,menu);
// 重定向设置
const routes = [
  {
    path: '/',
    redirect: '/homePage'
  },
]
// 将生成的路由文件 push 进去
for(let i = 0; i < menu.length; i++)
  routes.push(menu[i]);
  
const router = new VueRouter({routes})

export default router

菜单生成

<template>
  <div id="leftMenu">

  </div>
</template>

<script>
export default {
  name: "left",
  data(){
    return{menu:[]
    }
  },
  methods:{
  // 通过路由 id 来找节点
    findNodeById(node,id){for(let i = 0; i < node.length; i++){if(id == node[i].id){node[i].selected = true;
          if(node[i].children && node[i].children.length > 0){this.findNodeById(node[i].children,id);
          }
          node[i].open = !node[i].open;
          if(this.$route.path !== node[i].path) this.$router.push(node[i].path);
        }else{node[i].selected = false;
          if(node[i].children && node[i].children.length > 0){this.findNodeById(node[i].children,id);
          }else{}}
      }
    },
    // 选中菜单节点
    chooseNode(id){this.findNodeById(this.menu,id);
      let domTree = this.generatorMenu(this.menu,'',0)
      let leftMenu = document.getElementById('leftMenu');
      leftMenu.innerHTML = domTree;
    },
    // 动静生成菜单目录
    generatorMenu(menu,temp,floor){for(let i = 0; i < menu.length; i++){
        temp += `<div style="width: max-content">
                    <div class="menuOption" onclick="chooseNode(${menu[i].id})"
                            style="text-indent: ${floor}em;
                            background-color: ${menu[i].selected?'aquamarine':''};
                            cursor: pointer;
                            margin-top: 0.3rem;">
                        <i class="${menu[i].icon}"></i>
                        ${menu[i].label}`
        if(!menu[i].open && menu[i].children && menu[i].children.length > 0){temp += `<i style="margin-left: 1rem" class="el-icon-arrow-down"></i>`}else{if(menu[i].open && menu[i].children && menu[i].children.length > 0){temp += `<i style="margin-left: 1rem" class="el-icon-arrow-up"></i>`}
        }
        temp += `</div>`
        if(menu[i].open && menu[i].children && menu[i].children.length != 0){temp = this.generatorMenu(menu[i].children,temp,floor+1);
        }
        temp += `</div>`
      }
      return temp;
    }
  },
  created() {},
  mounted() {
    window.chooseNode = this.chooseNode;
    let menu = [];
    // 获取路由菜单配置文件
    const router = require('@/config/router.json');
    menu = router.menu;
    this.menu = menu;
    let domTree = this.generatorMenu(menu,'',0)
    let leftMenu = document.getElementById('leftMenu');
    leftMenu.innerHTML = domTree;
  }
}
</script>

<style scoped>
  #leftMenu{min-height: calc(100vh - 44px - 1rem);
    background-color: cornflowerblue;
    text-align: left;
    padding: 0.5rem 1rem;
    font-size: large;
    font-weight: bold;
  }
  .selectedM{background-color: aquamarine;}
  .menuOption{cursor: pointer;}
</style>

成果


左侧菜单便是主动生成的,点击菜单栏也会跳转到对应的路由地址,当然,款式有点丑,但款式的话能够本人后续再调整。
这样的话,咱们新加菜单的时候只须要在配置文件中配置好,就能够间接写编写页面,这样也给咱们省下了很多工夫。

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