Vue2导航守卫

案例代码

登录验证案例

main.js

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//路由拦截，拦截全部路由，每次操作路由都是被拦截进⾏判断
router.beforeEach((to, from, next) => {
  const token = localStorage.getItem("token");
  //筛选需要传token的路由，匹配route⾥⾯需要登录的路径，如果匹配到就是true
  if (to.matched.some(record => record.meta.requiresAuth)) {
    //根据token是否有，判断是否需要调到登录⻚⾯
    if (token) {
      next()
    } else {
      next({ path: '/login' })
    }
  } else {
    next();
  }
})

router/index.js

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import Vue from 'vue'
import VueRouter from 'vue-router'
import Home from '../views/Home/Home.vue'
import Login from '../views/Login/Login.vue'
import Order from '../views/Order/Order.vue'
import Pay from '../views/Pay/Pay.vue'
import Personal from '../views/Personal/Personal.vue'
import Register from '../views/Register/Register.vue'

Vue.use(VueRouter)

const routes = [
  {
    path: '/',
    name: 'Home',
    component: Home
  },
  {
    path: '/coursedetail',
    name: 'CourseDetail',
    // 按需加载
    component: ()=> import('../views/CourseDetail/CourseDetail.vue')
  },
  {
    path: '/login',
    name: 'Login',
    component: Login 
  },
  {
    path: '/order',
    name: 'Order',
    component: Order,
    meta: {
      requiresAuth: true
    }
  },
  {
    path: '/pay',
    name: 'Pay',
    component: Pay,
    meta: {
      requiresAuth: true
    }
  },
  {
    path: '/personal',
    name: 'Personal',
    component: Personal,
    meta: {
      requiresAuth: true
    }
  },
  {
    path: '/register',
    name: 'Register',
    component: Register 
  }
]

const router = new VueRouter({
  routes
})

export default router

views/Login/Login.vue

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<template>
    <div class="main">
        <cube-form :model="model" @submit="submitHandler">
            <cube-form-group>
                <!--⼿机号-->
                <cube-form-item :field="fields[0]"></cube-form-item>
                <!--密码-->
                <cube-form-item :field="fields[1]"></cube-form-item>
            </cube-form-group>
            <cube-form-group>
                <cube-button type="submit">登录</cube-button>
            </cube-form-group>
        </cube-form>
        <router-link to="/register" class="reg">注册</router-link>
    </div>
</template>

<script>
// 登录接口
import {userLogin} from '@/api/getData.js'

export default {
    data:()=> {
        return {
            model: {
                phoneValue:'',
                pwdValue:'',
            },
            fields: [
                {
                    type: 'input',
                    modelKey: 'phoneValue',
                    label: '手机号',
                    props: {
                        placeholder: '请输入手机'
                    },
                    rules: {
                        required: true
                    },
                    messages: {
                        required: '手机号不能为空'
                    }
                },
                {
                    type: 'input',
                    modelKey: 'pwdValue',
                    label: '密码',
                    props: {
                        placeholder: '请输入密码',
                        type: 'password',
                        eye: {
                            open: false
                        }
                    },
                    rules: {
                        required: true
                    },
                    messages: {
                        required: '密码不能为空'
                    }
                }
            ]
        }
    },
    methods: {
        submitHandler(e, model) {
            e.preventDefault();
            //调⽤注册接⼝
            userLogin(model.phoneValue,model.pwdValue)
            .then((res) => {
                if (res.data.code === 0) {
                    localStorage.setItem('token',res.data.data)
                    
                    this.$store.dispatch('setToken', res.data.data)

                    // 跳转到主页
                    this.$router.push({path:'/'})
                } else {
                    const toast = this.$createToast({
                    txt: "登录失败",
                    type: "error",
                    time: 1500
                    });
                    toast.show();
                }
            })
        }
    }
}
</script>

<style lang="scss" scoped>
.main {
    padding: 50px 5% 0;
    text-align: center;
}

//注册
.cube-btn {
    margin-top: 20px;
}

// 登录
.reg {
    display: inline-block;
    margin-top: 30px;
    font-size: 18px;
}
</style>

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