70 lines
1.7 KiB
JavaScript
70 lines
1.7 KiB
JavaScript
import Vue from 'vue'
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import Vuex from 'vuex'
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Vue.use(Vuex)
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export default new Vuex.Store({
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state: sessionStorage.getItem('state') ? JSON.parse(sessionStorage.getItem('state')):{
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cache: {},
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showFramework: false, // 是否需要显示框架
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user: null
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},
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mutations: {
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// 把一个数据添加到缓存中
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// expirationTime:数据到期时间
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appendToCache (state, params) {
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if (params.timeout) {
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this.state.cache[params.key] = {
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data: params.data,
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expirationTime: new Date().getTime() + params.timeout
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}
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} else {
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this.state.cache[params.key] = { data: params.data }
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}
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},
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// 从缓存中删除一个数据
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removeFromCache (state, key) {
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delete this.state.cache.key
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},
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showFramework (state, isShow) {
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this.state.showFramework = isShow
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},
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setUser (state, user) {
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state.user = user
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}
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},
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actions: {
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appendToCache (context, params) {
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context.commit('appendToCache', params)
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}
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},
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modules: {
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},
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getters: {
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hasPermission(state,permission){
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console.log("权限:",permission,state);
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},
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getUserInfo (state) {
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return state.user
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},
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// 获取缓存中的一个数据
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getCacheData: (state) => (key) => {
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var needRequest = true
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var data = null
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// 判断是否含有这个键
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if (state.cache.hasOwnProperty(key)) {
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var value = state.cache[key]
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// 判断是否需要重新请求
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if (value.hasOwnProperty('expirationTime')) {
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needRequest = new Date().getTime() > value.expirationTime
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} else {
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needRequest = false
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}
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data = value.data
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}
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// needRequest用来记录是否需要重新发起请求来获取
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return { data, needRequest }
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}
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}
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})
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