vue-element-admin搭建后台管理系统的实现步骤

近期在搞一个会议健康申报系统时，要搞一个后台，用到了vue-element-admin模板，使用的是PanJianChen(源码地址：https://github.com/PanJiaChen/vue-admin-template)

第一步：当前是下载源码了，下载地址：https://github.com/PanJiaChen/vue-admin-template

第二步：修改登录页面，登录接口（/store/modules/admin.js/login()），根据实际情况修改用户信息接口(/store/modules/admin.js/getInfo())

第三步：修改权限路由

1.删减路由文件中的配置，export const constantRoutes保留基本的/login、/404

2.动态路由清空，export const asyncRoutes=[]

3./store/modules/permission.js下定义生成路由方法

/**
 * 后台查询的菜单数据拼装成路由格式的数据
 * @param routes
 */
export function generaMenu(routes, data) {

    data.forEach(item => {
        let menu = {
            path: item.url,
            children: [],
            name: 'menu_' + item.id,
            meta: { title: item.name, id: item.id ,icon:item.icon}
        }
        // console.log(item.url.indexOf('dashboard'))

        // console.log(item.children)
        if (item.children) {
            // console.log(item.children.length)
            if (item.children.length > 0) {
                menu.redirect = item.children[0].url
                menu.component = Layout
            } else {
                // menu.component = () => import(`@/views${item.url}/index`)
                menu.component = () => Promise.resolve(require(`@/views${item.url}`).default)

            }
            if (item.url && item.url.indexOf('dashboard') != -1) {
                menu = {
                    path: '/',
                    component: Layout,
                    redirect: '/dashboard',
                    children: [{
                        path: 'dashboard',
                        name: 'Dashboard',
                        component: () => import('@/views/dashboard/index'),
                        meta: { title: '控制台', icon: 'dashboard' }
                    }]
                }
            }
            generaMenu(menu.children, item.children)
        } else {
            console.log('没有children')
        }
        routes.push(menu)
    })
}

actions中根据后台的接口加载动态路由

actions: {
        GenerateRoutes({ commit }, data) {
            return new Promise(resolve => {

                const loadMenuData = []
                getAuthMenu().then(res => {
                    let data = res.data
                    console.log('menu=>', data)
                    console.log('asyncRoutes=>>', asyncRoutes)
                    let newRoutes = []//此处清空之前的路由
                    Object.assign(loadMenuData, data)
                    generaMenu(newRoutes, loadMenuData)
                    newRoutes.push({ path: '*', redirect: '/404', hidden: true })
                    let accessedRouters = newRoutes || []
                    console.log('accessedRouters', accessedRouters)
                    commit('SET_ROUTERS', accessedRouters)
                    resolve()
                })

            })
        },
        reset_routers({ commit }) {
            return new Promise(resolve => {
                commit('RESET_ROUTERS')
                resolve()
            })
        }
    }

第四步、在/permission.js中添加动态路由

router.beforeEach(async (to, from, next) => {
    // start progress bar
    NProgress.start()

    // set page title
    document.title = getPageTitle(to.meta.title)

    // determine whether the user has logged in
    const hasToken = getToken()

    if (hasToken) {
        if (to.path === '/login') {
            // if is logged in, redirect to the home page
            next({ path: '/' })
            NProgress.done()
        } else {
            const hasGetUserInfo = store.getters.name
            if (hasGetUserInfo) {
                next()
            } else {
                try {
                    // get user info
                    await store.dispatch('admin/getInfo')

                    store.dispatch('GenerateRoutes', {}).then(() => { // 生成可访问的路由表
                        router.addRoutes(store.getters.addRouters) // 动态添加可访问路由表
                        console.log('to=',store.getters.addRouters)
                        next({ ...to, replace: true }) // hack方法 确保addRoutes已完成 ,set the replace: true so the navigation will not leave a history record
                        NProgress.done()
                    })

                    // next()
                } catch (error) {
                    // remove token and go to login page to re-login
                    await store.dispatch('admin/resetToken')
                    Message.error(error || 'Has Error')
                    next(`/login?redirect=${to.path}`)
                    NProgress.done()
                }
            }
        }
    } else {
        /* has no token*/

        if (whiteList.indexOf(to.path) !== -1) {
            // in the free login whitelist, go directly
            next()
        } else {
            // other pages that do not have permission to access are redirected to the login page.
            next(`/login?redirect=${to.path}`)
            NProgress.done()
        }
    }
})

然后你就可心情地玩了。

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