vuex 完整内容总结

store.js:

import Vue from 'vue'

import Vuex from 'vuex'

Vue.use(Vuex);

export const store = new Vuex.Store({

    state:{

        userId:''

    },

    getters:{

        isLogin(state){

            if (!state.userId) {     //防止刷新页面获取不到

                state.userId=sessionStorage.getItem('userId');

            } 

            return state.userId

        }

    },

    mutations:{ 

        removeUserId(state,payload){ //更新 state 方法

            sessionStorage.removeItem("userId"); 

            state.userId = ''

        }

    }

})

调用

computed:{

        companyInfo(){

           return this.$store.state.enterpriseInfo

           return this.$store.getters.getWelfareTotalNumber //这个地方取得是getters 刷新页面中也会有

        }

    },

主动更新

this.$store.commit("authentEnterPrise",{companyData:companyObj});