去除首页菜单，默认显示权限下第一个菜单

‍### 登录后跳转到配置的第一个菜单：

修改 src/permission.js，跳转到权限第一个菜单

router.beforeEach((to, from, next) => {
  NProgress.start()
  if (getToken()) {
    to.meta.title && store.dispatch('settings/setTitle', to.meta.title)
    /* has token*/
    if (to.path === '/login') {
      next({ path: '/' })
      NProgress.done()
    } else {
      if (store.getters.roles.length === 0) {
        isRelogin.show = true
        // 判断当前用户是否已拉取完user_info信息
        store.dispatch('GetInfo').then(() => {
          isRelogin.show = false
          store.dispatch('GenerateRoutes').then(accessRoutes => {
            // 根据roles权限生成可访问的路由表
            router.addRoutes(accessRoutes) // 动态添加可访问路由表
	    /******  修改开始-qjs   ******/
            if(from.path == '/login'){
              let path = ""
              let flag = true
              let child = accessRoutes;
              while(flag){
                if(!child[0].children){
                  path = child[0]
                  flag = false
                }else{
                  child = child[0].children
                }
              }
              next({ ...path, replace: true })
            }else{
              next({ ...to, replace: true }) // hack方法 确保addRoutes已完成
            }
	    /******  修改结束-qjs   ******/
          })
        }).catch(err => {
            store.dispatch('LogOut').then(() => {
              Message.error(err)
              next({ path: '/' })
            })
          })
      } else {
        next()
      }
    }
  } else {
    // 没有token
    if (whiteList.indexOf(to.path) !== -1) {
      // 在免登录白名单，直接进入
      next()
    } else {
      next(`/login?redirect=${to.fullPath}`) // 否则全部重定向到登录页
      NProgress.done()
    }
  }
})

隐藏侧边菜单栏的首页菜单：

修改 src/router/index.js ,增加 hidden:true 或者直接注释掉 path:'' 为空的路由及子类

​​

export const constantRoutes = [
{
    path: '',
    component: Layout,
    hidden: true,//qjs-去首页  去掉侧边菜单栏
    redirect: 'index',
    children: [
      {
        path: 'index',
        component: () => import('@/views/index'),
        name: 'Index',
        meta: { title: '首页', icon: 'dashboard', affix: true }
      }
    ]
  },
]

去除面包屑的首页：

修改：/src/components/Breadcrumb/index.vue,注释 getBreadcrumb 方法中的代码

​​

methods: {
    getBreadcrumb() {
      // only show routes with meta.title
      let matched = this.$route.matched.filter(item => item.meta && item.meta.title)
      const first = matched[0]
      //注释下面代码
      //if (!this.isDashboard(first)) {
      //  matched = [{ path: '/index', meta: { title: '首页' }}].concat(matched)
      //}

      this.levelList = matched.filter(item => item.meta && item.meta.title && item.meta.breadcrumb !== false)
    },
}

去除顶部导航栏的首页：

修改 src/layout/components/TagsView/index.vue,不装载首页

filterAffixTags(routes, basePath = '/') {
      let tags = []
      routes.forEach(route => {
        if (route.meta && route.meta.affix) {
          const tagPath = path.resolve(basePath, route.path)
          tags.push({
            fullPath: tagPath,
            path: tagPath,
            name: route.name,
            meta: { ...route.meta }
          })
        }
        if (route.children) {
          /**qjs-去首页  begin  **/
          if(route.redirect == 'index'){
            return
          }
          /**qjs-去首页  end  **/
          const tempTags = this.filterAffixTags(route.children, route.path)
          if (tempTags.length >= 1) {
            tags = [...tags, ...tempTags]
          }
        }
      })
      return tags
    },

去除错误页面跳转到首页

修改：src/views/error/401.vue 和 src/views/error/404.vue, 注释掉返回首页的

  <!--
  <router-link to="/">
     回首页
  </router-link>
  -->

‍

去除响应异常跳转到首页

修改 src/settings.js, 添加一个空白页

module.exports = {

  /**
   * 空白页
   */
  indexPage: '',

修改 src/store/modules/settings.js, 增加首页

import defaultSettings from '@/settings'

const { indexPage,//增加首页-qjs
 sideTheme, showSettings, topNav, tagsView, fixedHeader, sidebarLogo, dynamicTitle } = defaultSettings

const storageSetting = JSON.parse(localStorage.getItem('layout-setting')) || ''
const state = {
  title: '',
  indexPage: indexPage,   //增加首页-qjs
  theme: storageSetting.theme || '#409EFF',
  sideTheme: storageSetting.sideTheme || sideTheme,
  showSettings: showSettings,
  topNav: storageSetting.topNav === undefined ? topNav : storageSetting.topNav,
  tagsView: storageSetting.tagsView === undefined ? tagsView : storageSetting.tagsView,
  fixedHeader: storageSetting.fixedHeader === undefined ? fixedHeader : storageSetting.fixedHeader,
  sidebarLogo: storageSetting.sidebarLogo === undefined ? sidebarLogo : storageSetting.sidebarLogo,
  dynamicTitle: storageSetting.dynamicTitle === undefined ? dynamicTitle : storageSetting.dynamicTitle
}

修改 src/utils/request.js, 跳转到设置的空白页

// 响应拦截器
service.interceptors.response.use(res => {
    // 未设置状态码则默认成功状态
    const code = res.data.code || 200;
    // 获取错误信息
    const msg = errorCode[code] || res.data.msg || errorCode['default']
    // 二进制数据则直接返回
    if(res.request.responseType ===  'blob' || res.request.responseType ===  'arraybuffer'){
      return res.data
    }
    if (code === 401) {
      if (!isRelogin.show) {
        isRelogin.show = true;
        MessageBox.confirm('登录状态已过期，您可以继续留在该页面，或者重新登录', '系统提示', {
          confirmButtonText: '重新登录',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).then(() => {
        isRelogin.show = false;
        store.dispatch('LogOut').then(() => {
          /******  qjs-去首页 注释下面代码，添加如下行 begin  ****/
          // location.href = '/index';
          location.href = this.$store.state.settings.indexPage;
          /******  qjs-去首页 注释下面代码，添加如下行  end ****/
        })
      }).catch(() => {
        isRelogin.show = false;
      });
    }