Vue.js 访问存储或获取程序的状态_网页包\u导入的\u模块\u 3\u存储\uuuuuuuuuuuu.a.分派不是一个函数
我试图验证用户是否经过身份验证,能够访问定向的路由,否则将重定向到登录路由,问题是我不知道如何在每次之前从我的Vue.js 访问存储或获取程序的状态_网页包\u导入的\u模块\u 3\u存储\uuuuuuuuuuuu.a.分派不是一个函数,vue.js,vue-router,vuex,Vue.js,Vue Router,Vuex,我试图验证用户是否经过身份验证,能够访问定向的路由,否则将重定向到登录路由,问题是我不知道如何在每次之前从我的执行fetchUser操作。换句话说,我无法从路由器脚本访问我的getter store.js import mutations from './mutations'; import actions from './actions'; import getters from './getters'; export default { state: { isLog
执行fetchUser
操作。换句话说,我无法从路由器脚本访问我的getter
store.js
import mutations from './mutations';
import actions from './actions';
import getters from './getters';
export default {
state: {
isLoggedIn: !!localStorage.getItem("token"),
user_data : localStorage.getItem("user_data"),
},
getters ,
mutations,
actions
}
import Vue from 'vue'
import VueRouter from 'vue-router'
Vue.use(VueRouter)
import routes from './rutas';
import store from '../store/';
const router = new VueRouter({
mode : 'history',
routes
})
router.beforeEach((to, from, next) => {
if (to.matched.some(record => record.meta.requiresAuth)) {
if (!store.getters.isLoggedIn) {
next({path: '/login'})
}
else {
store.dispatch('fetchUser') // Line error
next()
}
}
else {
next() // make sure to always call next()!
}
})
export default {
isLoggedIn: state => {
return state.isLoggedIn
},
user_name : state =>{
if(! _.isEmpty(this.user_data))
return JSON.parse(state.user_data).name
return '';
},
isEmptyUser : state =>{
return _.isEmpty(this.user_data);
},
isAdmin: state => {
if(! _.isEmpty(this.user_data)) return state.user_data.nivel===1
return false;
}
}
export default {
/* more methods*/
, async fetchUser({ commit }) {
return await axios.post('/api/auth/me')
.then(res => {
setTimeout(() => {
localStorage.setItem("user_data", JSON.stringify(res.data));
Promise.resolve(res.data);
}, 1000);
},
error => {
Promise.reject(error);
});
}
routes/index.js
import mutations from './mutations';
import actions from './actions';
import getters from './getters';
export default {
state: {
isLoggedIn: !!localStorage.getItem("token"),
user_data : localStorage.getItem("user_data"),
},
getters ,
mutations,
actions
}
import Vue from 'vue'
import VueRouter from 'vue-router'
Vue.use(VueRouter)
import routes from './rutas';
import store from '../store/';
const router = new VueRouter({
mode : 'history',
routes
})
router.beforeEach((to, from, next) => {
if (to.matched.some(record => record.meta.requiresAuth)) {
if (!store.getters.isLoggedIn) {
next({path: '/login'})
}
else {
store.dispatch('fetchUser') // Line error
next()
}
}
else {
next() // make sure to always call next()!
}
})
export default {
isLoggedIn: state => {
return state.isLoggedIn
},
user_name : state =>{
if(! _.isEmpty(this.user_data))
return JSON.parse(state.user_data).name
return '';
},
isEmptyUser : state =>{
return _.isEmpty(this.user_data);
},
isAdmin: state => {
if(! _.isEmpty(this.user_data)) return state.user_data.nivel===1
return false;
}
}
export default {
/* more methods*/
, async fetchUser({ commit }) {
return await axios.post('/api/auth/me')
.then(res => {
setTimeout(() => {
localStorage.setItem("user_data", JSON.stringify(res.data));
Promise.resolve(res.data);
}, 1000);
},
error => {
Promise.reject(error);
});
}
getters.js
import mutations from './mutations';
import actions from './actions';
import getters from './getters';
export default {
state: {
isLoggedIn: !!localStorage.getItem("token"),
user_data : localStorage.getItem("user_data"),
},
getters ,
mutations,
actions
}
import Vue from 'vue'
import VueRouter from 'vue-router'
Vue.use(VueRouter)
import routes from './rutas';
import store from '../store/';
const router = new VueRouter({
mode : 'history',
routes
})
router.beforeEach((to, from, next) => {
if (to.matched.some(record => record.meta.requiresAuth)) {
if (!store.getters.isLoggedIn) {
next({path: '/login'})
}
else {
store.dispatch('fetchUser') // Line error
next()
}
}
else {
next() // make sure to always call next()!
}
})
export default {
isLoggedIn: state => {
return state.isLoggedIn
},
user_name : state =>{
if(! _.isEmpty(this.user_data))
return JSON.parse(state.user_data).name
return '';
},
isEmptyUser : state =>{
return _.isEmpty(this.user_data);
},
isAdmin: state => {
if(! _.isEmpty(this.user_data)) return state.user_data.nivel===1
return false;
}
}
export default {
/* more methods*/
, async fetchUser({ commit }) {
return await axios.post('/api/auth/me')
.then(res => {
setTimeout(() => {
localStorage.setItem("user_data", JSON.stringify(res.data));
Promise.resolve(res.data);
}, 1000);
},
error => {
Promise.reject(error);
});
}
actions.js
import mutations from './mutations';
import actions from './actions';
import getters from './getters';
export default {
state: {
isLoggedIn: !!localStorage.getItem("token"),
user_data : localStorage.getItem("user_data"),
},
getters ,
mutations,
actions
}
import Vue from 'vue'
import VueRouter from 'vue-router'
Vue.use(VueRouter)
import routes from './rutas';
import store from '../store/';
const router = new VueRouter({
mode : 'history',
routes
})
router.beforeEach((to, from, next) => {
if (to.matched.some(record => record.meta.requiresAuth)) {
if (!store.getters.isLoggedIn) {
next({path: '/login'})
}
else {
store.dispatch('fetchUser') // Line error
next()
}
}
else {
next() // make sure to always call next()!
}
})
export default {
isLoggedIn: state => {
return state.isLoggedIn
},
user_name : state =>{
if(! _.isEmpty(this.user_data))
return JSON.parse(state.user_data).name
return '';
},
isEmptyUser : state =>{
return _.isEmpty(this.user_data);
},
isAdmin: state => {
if(! _.isEmpty(this.user_data)) return state.user_data.nivel===1
return false;
}
}
export default {
/* more methods*/
, async fetchUser({ commit }) {
return await axios.post('/api/auth/me')
.then(res => {
setTimeout(() => {
localStorage.setItem("user_data", JSON.stringify(res.data));
Promise.resolve(res.data);
}, 1000);
},
error => {
Promise.reject(error);
});
}
这将在控制台中返回错误:
_网页包\u导入的\u模块\u 3\u存储\uuuuuuuuuuuu.a.分派不是一个函数
我该怎么做,或者方法是错误的,我不应该直接访问操作?问题是您的存储区
不是实际的存储区对象,它只是用于生成它的对象
解决方案是将文件导出到实际存储:
从“Vue”导入Vue;
从“Vuex”导入Vuex;
从“./突变”导入突变;
从“/actions”导入操作;
从“/getter”导入getter;
Vue.use(Vuex);//加在这里
导出默认的新Vuex.Store({//此处已更改
声明:{
isLoggedIn:!!localStorage.getItem(“令牌”),
用户数据:localStorage.getItem(“用户数据”),
},
获得者,
突变,
行动
})//这里变了
现在你的路由器代码可以工作了
您还必须注意的是,可能在main.js中的某个地方,您已经像上面那样初始化了存储。例如:
从“../store/”导入存储;
新Vue({
门店:新Vuex.门店(门店),
// ...
})
现在,您必须删除该初始化并直接使用存储:
从“../store/”导入存储;
新Vue({
store:store,//或干脆store
// ...
})
所有这些都应该是好的。在Vue实例中,我有存储:new Vuex.store(store)
,如前所述,但在创建存储实例之前,我会收到错误调用Vue.use(Vuex)。如果我执行典型的Vue.use(Vuex)
操作,我得到的错误是getters应该是函数,但“getters.isLoggedIn”是真的。您可以将getters声明粘贴到问题中吗?在更改之前,您是否收到该错误?一切都很好,但是路由器,以前?现在很好,只是一个简短的问题,是否可以在mapState中添加getter?我现在在数据中添加了一个新字段,并抓取username:this.$store.getters.user\u name,
我假设您使用mapState
从状态创建计算属性。类似地,您可以使用mapGetters
从getter创建计算属性。是这样吗?