这个方法其实只能获取到用户名称，获取不到用户id，不知道官方文档写了但是没有是个什么意思

const userid = this.$store.state.user.userId;const username= this.$store.state.user.name 

1.获取用户id

在src包下找到store，modules下的user.js文件

login_id就是需要用到的用户id

  mutations: {SET_TOKEN: (state, token) => {state.token = token},SET_NAME: (state, name) => {state.name = name},SET_AVATAR: (state, avatar) => {state.avatar = avatar},SET_ROLES: (state, roles) => {state.roles = roles},SET_PERMISSIONS: (state, permissions) => {state.permissions = permissions},LOGIN_ID: (state, userId) => {state.userId = userId}},

在获取用户信息GetInfo方法中获取一下id

    GetInfo({ commit, state }) {return new Promise((resolve, reject) => {getInfo().then(res => {const user = res.userconst avatar = (user.avatar == "" || user.avatar == null) ? require("@/assets/images/profile.jpg") : process.env.VUE_APP_BASE_API + user.avatar;if (res.roles && res.roles.length > 0) { // 验证返回的roles是否是一个非空数组commit('SET_ROLES', res.roles)commit('SET_PERMISSIONS', res.permissions)} else {commit('SET_ROLES', ['ROLE_DEFAULT'])}commit('LOGIN_ID', user.userId)commit('SET_NAME', user.userName)commit('SET_AVATAR', avatar)resolve(res)}).catch(error => {reject(error)})})},