步骤流程

1.找到user.js

2.在user.js中找到以下几个地方

• 属性：state{}
• 属性：mutations{}
• 函数：GetInfo()

3.在user.js中添加代码 

4.在自己的页面中添加获取id的代码

步骤一

在该若依的版本中，从下列目录找到，ruoyi-ui->src->store->modules->user.js

 步骤二

属性state在页面中的位置

state: {    token: getToken(),    name: '',    avatar: '',    roles: [],    permissions: []  },

还有mutations

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    }}

最后是GetInfo方法

GetInfo({ commit, state }) {      return new Promise((resolve, reject) => {        getInfo().then(res => {          const user = res.user          const 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('SET_NAME', user.userName)          commit('SET_AVATAR', avatar)          resolve(res)        }).catch(error => {          reject(error)        })      })    },

步骤三

到此处开始添加代码

user.js中，state

添加id属性

state: {    token: getToken(),    name: '',    id:'',//添加的用户id    avatar: '',    roles: [],    permissions: []  },

mutations中添加SET_ID

mutations: {//添加方法    SET_ID: (state, userId) => {      state.id = userId    },    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    }

最后在GetInfo中添加，设置缓存id的代码

commit('SET_ID', user.userId)

// 获取用户信息    GetInfo({ commit, state }) {      return new Promise((resolve, reject) => {        getInfo().then(res => {          const user = res.user          const 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('SET_ID', user.userId)//添加这行代码          commit('SET_NAME', user.userName)          commit('SET_AVATAR', avatar)          resolve(res)        }).catch(error => {          reject(error)        })      })    },

步骤三

在自己的页面中使用缓存中的用户id

首先导入包import store from "@/store";写在<script>标签中

<script>import store from "@/store";export default {    data(){     return{         userId:store.state.user.id//将缓存的用户id赋值给userId     }    }}。。。。。</script>

参考文章：如何前台页面获取用户ID信息？ · Issue #I3OVTU · 若依/RuoYi - Gitee.com