6. 错误码401 token失效处理

6-1 修改request.js 拦截401错误

src/api/config/request.ts

import axios, { AxiosError } from 'axios'
import { ElMessage } from 'element-plus'
import { getToken } from '../../utils/auth'
import store from '@/store'
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API,
  timeout: 100000
})
service.interceptors.request.use(config => {
  const token = getToken()
  if (token) { // 携带token
    config.headers.Authorization = `Bearer ${token}`
  }
  return config
}, error => {
  console.log(error)
  return Promise.reject(error)
})
service.interceptors.response.use(response => {
  const { code, message } = response.data
  if (code !== 0) { // 错误提示
    ElMessage.error(message)
    return Promise.reject(message)
  }
  return response.data
}, (error: AxiosError) => {
  const res = error?.response
  if (res && res.status === 401) { // 401 未登录 token失效
    store.dispatch('user/resetToken').then(() => {
      window.location.reload()
    })
  }
  ElMessage.error(error.message)
  return Promise.reject(error)
})
export default service

6-2 添加resetToken action

清空token

src/store/modules/user.ts

import { Module, MutationTree, ActionTree } from 'vuex'
import { IRootState } from '@/store'
import { login } from '@/api/user'
import { setToken, removeToken } from '@/utils/auth'
// login params
export interface IUserInfo {
  username: string;
  password: string;
}
// 定义state类型
export interface IUserState {
  token: string;
}
// mutations类型
type IMutations = MutationTree<IUserState>
// actions类型
type IActions = ActionTree<IUserState, IRootState>
// 定义state
const state: IUserState = {
  token: ''
}
// 定义mutation
const mutations: IMutations = {
  SET_TOKEN(state, token: string) {
    state.token = token
  }
}
// 定义action
const actions: IActions = {
  login({ commit }, userInfo: IUserInfo) {
    const { username, password } = userInfo
    return new Promise((resolve, reject) => {
      login({ username: username.trim(), password }).then(response => {
        const { data } = response
        commit('SET_TOKEN', data.token)
        setToken(data.token) // localStorage中保存token
        resolve(data)
      }).catch(error => {
        reject(error)
      })
    })
  },
  logout({ commit, dispatch }) {
    // 退出登录接口我这里就不写了
    return new Promise<void>((resolve) => {
      // 清空store里token
      commit('SET_TOKEN', '')
      // 清空localStorage里的token
      removeToken()
      // 清除所有tag views
      dispatch('tagsView/delAllViews', null, { root: true })
      resolve()
    })
  },
  resetToken({ commit }) {
    return new Promise<void>((resolve) => {
      // 清空store里token
      commit('SET_TOKEN', '')
      // 清空localStorage里的token
      removeToken()
      resolve()
    })
  }
}
// 定义user module
const user: Module<IUserState, IRootState> = {
  namespaced: true,
  state,
  mutations,
  actions
}
export default user