Vue--啟動后到加載第一個頁面的過程

地址欄http://localhost:8088/#/填寫密碼登錄后自動跳轉到http://localhost:8088/#/home/msg/workerpush

一\ 得先跳轉到login頁面

  { path: '/',
    component: Login,
    name: 'Login' },

二 路由攔截器

本項目沒有使用路由攔截器

路由攔截器是:

router.js中
 {
          path:'/manage',
          name:'manage',
          component:manage,
          meta:{requireAuth:true}
        },

..

new Vue({
  el: '#app',
  data(){
    return{
      requireAuthNum:1
    }
  },
  router:router,
  store,
  components: { App },
  template: '<App/>',
   created () {
    router.beforeEach((to, from, next) => {
    var _this = this;
  // if (to.matched.some(record => record.meta.requireAuth)){  // 判斷該路由是否需要登錄權限
   if(to.meta.requireAuth && _this.requireAuthNum==1){

       if(JSON.parse(localStorage.getItem("login"))==null){
          console.log('沒有登錄')
          _this.$router.push({path: '/',query: {redirect: to.fullPath}})
          next()
       } else {
          _this.requireAuthNum++;
          _this.$router.push({path: to.fullPath})
          next()
        }
    }
    else {
      _this.requireAuthNum = 1;
      next();
    }
});
    
  }
})

..

localStorage.setItem("login",JSON.stringify(login));
            
                let redirect = decodeURIComponent(this.$route.query.redirect || '/');
              
                console.log(redirect);
                if(redirect == '/'){
                    _this.$router.push({path: '/index'});
                    console.log('login');
                }else{
                    _this.$router.push({path: redirect});
                    console.log('重定向回去')
                }

參考:https://www.cnblogs.com/zhengzemin/p/vueRouter_lanjie.html

路由攔截其實很簡單：1）加上meta。2）router.beforeEach函數加上判斷即可

三　本項目采取的策略,在home.vue的create方法中進行判斷

    created() {
      // this.getTitleAndLogo()
      let authKey = Lockr.get('authKey')
      let sessionId = Lockr.get('sessionId')
      if (!authKey || !sessionId) {
        _g.toastMsg('warning', '您尚未登錄')
        setTimeout(() => {      //主要是這個1.5秒后跳轉
          router.replace('/')
        }, 1500)
        return
      }
      this.getUsername()
      let menus = Lockr.get('menus')
      this.menu = this.$route.meta.menu
      this.module = this.$route.meta.module
      this.topMenu = menus
      _(menus).forEach((res) => {
        if (res.module == this.module) {
          this.menuData = res.child
          res.selected = true
        } else {
          res.selected = false
        }
      })
    },　　

五 進入login.vue 項目入口

login.vue 中
<template>
          <el-form-item style="width:100%;">
        <el-button type="primary" style="width:100%;" v-loading="loading" @click.native.prevent="handleSubmit2('form')">登錄</el-button>
      </el-form-item>
</template>

 <script>
methods:{
 handleSubmit2(form) {
        if (this.loading) return
        this.$refs.form.validate((valid) => {
          if (valid) {
            this.loading = !this.loading
            let data = {}
            if (this.requireVerify) {
              data.user_name = this.form.username
              data.password = this.form.password
              data.verifyCode = this.form.verifyCode
            } else {
              data.user_name = this.form.username
              data.password = this.form.password
            }
            if (this.checked) {
              data.isRemember = 1
            } else {
              data.isRemember = 0
            }
            this.apiPost('admin/login', data).then((res) => {  //看這里!!!
              if (res.code != 200) {
                this.loading = !this.loading
                this.handleError(res)
              } else {
                this.refreshVerify()
                if (this.checked) {
                  Cookies.set('rememberPwd', true, { expires: 1 })
                }
                this.resetCommonData(res.data)
                _g.toastMsg('success', '登錄成功')
              }
            })
          } else {
            return false
          }
        })
      },
    



}   

　

this.resetCommonData(res.data)

    resetCommonData(data) {
      _(data.menusList).forEach((res, key) => {
        if (key == 0) {
          res.selected = true
        } else {
          res.selected = false
        }
      })
      Lockr.set('menus', data.menusList)              // 菜單數據
      Lockr.set('authKey', data.authKey)              // 權限認證
      Lockr.set('rememberKey', data.rememberKey)      // 記住密碼的加密字符串
      Lockr.set('authList', data.authList)            // 權限節點列表
      Lockr.set('userInfo', data.userInfo)            // 用戶信息
      Lockr.set('sessionId', data.sessionId)          // 用戶sessionid
      window.axios.defaults.headers.authKey = Lockr.get('authKey')
      let routerUrl = ''
      if (data.menusList[0].url) {
        routerUrl = data.menusList[0].url
      } else {
        routerUrl = data.menusList[0].child[0].child[0].url+"?t="+Date.parse(new Date());//這里是為了測試自己添加的
      }
      setTimeout(() => {
        let path = this.$route.path
        if (routerUrl != path) {
          router.replace(routerUrl)
        } else {
          _g.shallowRefresh(this.$route.name)
        }
      }, 1000)
    },　　

　六  點擊菜單的跳轉過程

leftMenu.vue
<script>
export default {
  methods: {
    routerChange(item) 	{
      //  與當前頁面路由相等則刷新頁面
      if (item.url != this.$route.path) {
        //router.push(item.url)
		  alert("this is at leftMenu.vue:55"+item.url);
		  router.push({path:item.url,query:{ t:Date.parse(new Date())}})
      } else {
		  alert("this is at leftMenu.vue:55"+item.url);
		 // router.push({path:item.url,query:{t:Date.parse(new Date())}})
        _g.shallowRefresh(this.$route.name) //看着
      }
    }
  }
}
</script>

..

global.js中
const commonFn = {
  j2s(obj) {
    return JSON.stringify(obj)
  },
  shallowRefresh(name) {
    router.replace({ path: '/refresh', query: { name: name }})
  },
...
}

　..路由routes.js

  {
    path: '/home',
    component: Home,
    children: [
      { path: '/refresh', component: refresh, name: 'refresh' }
    ]
  },

..refresh.vue

<template>
	<div></div>
</template>
<script>
export default {
  created() {
    if (this.$route.query.name) {
      router.replace({ name: this.$route.query.name })
    } else {
      console.log('refresh fail')
    }
  }
}
</script>

　這里說明:由於用到了el-munu控件,設置了使用了 index=url跳轉會導致@onclick的跳轉 路由判斷時效

<template>
	<div>
		<el-aside :width="isCollapse?'56px':'210px'">
			<el-menu
					mode="vertical"
					unique-opened
					:collapse="isCollapse"
					:collapse-transition="false"
					:router="true"
					:default-active="activePath">
				<!-- 一級菜單 -->
				<el-submenu :index="item.id + ''" v-for="item in menuData" :key="item.id">
					<!-- 一級菜單的模版區域 -->
					<template slot="title">
						<!-- 圖標 -->
						<i class="el-icon-chat-round"></i>
						<!-- 文本 -->
						<span style="color: #ffffff" class="menu_style">{{ item.title }}</span>
					</template>

					<!-- 二級菜單 -->
					<el-menu-item :index="subItem.url" v-for="subItem in item.child" :key="subItem.id" @click="routerChange(subItem)">
						<template slot="title">
							<!-- 圖標 -->
							<i class="el-icon-chat-round"></i>
							<!-- 文本 -->
							<span>{{ subItem.title }}</span>
						</template>
					</el-menu-item>
				</el-submenu>
			</el-menu>
		</el-aside>
	</div>
</template>

　..

　

  methods: {
    routerChange(item) 	{
      //  與當前頁面路由相等則刷新頁面
      if (item.url != this.$route.path) { //這里失效了
        //router.push(item.url)
		  alert("this is at leftMenu.vue:55"+item.url);
		  router.push({path:item.url,query:{ t:Date.parse(new Date())}})
      } else {
		  alert("this is at leftMenu.vue:55"+item.url);
		 // router.push({path:item.url,query:{t:Date.parse(new Date())}})
        _g.shallowRefresh(this.$route.name)
      }
    }
  }

七 遺留問題:為什么以后頁面都是/home的子路徑,包括/refesh

　

　　

　

　　

 

atzhang