VUE中的拦截器

妖狐艹你老母 2022-12-31 02:25 141阅读 0赞

import axios from 'axios'
    import { Notification, MessageBox, Message } from 'element-ui'
    import store from '@/store'
    import { getToken } from '@/utils/auth'
    import errorCode from '@/utils/errorCode'
    
    axios.defaults.headers['Content-Type'] = 'application/json;charset=utf-8'
    // 创建axios实例
    const service = axios.create({
      // axios中请求配置有baseURL选项，表示请求URL公共部分
      baseURL: process.env.VUE_APP_BASE_API,
      // 超时
      timeout: 10000
    })
    // request拦截器
    service.interceptors.request.use(config => {
      // 是否需要设置 token
      const isToken = (config.headers || {}).isToken === false
      if (getToken() && !isToken) {
        config.headers['Authorization'] = 'Bearer ' + getToken() // 让每个请求携带自定义token 请根据实际情况自行修改
      }
      return config
    }, error => {
        console.log(error)
        Promise.reject(error)
    })
    
    // 响应拦截器
    service.interceptors.response.use(res => {
        // 未设置状态码则默认成功状态
        const code = res.data.code || 200;
        // 获取错误信息
        const msg = errorCode[code] || res.data.msg || errorCode['default']
        if (code === 401) {
          MessageBox.confirm('登录状态已过期，您可以继续留在该页面，或者重新登录', '系统提示', {
              confirmButtonText: '重新登录',
              cancelButtonText: '取消',
              type: 'warning'
            }
          ).then(() => {
            store.dispatch('LogOut').then(() => {
              location.href = '/index';
            })
          })
        } else if (code === 500) {
          Message({
            message: msg,
            type: 'error'
          })
          return Promise.reject(new Error(msg))
        } else if (code !== 200) {
          Notification.error({
            title: msg
          })
          return Promise.reject('error')
        } else {
          return res.data
        }
      },
      error => {
        console.log('err' + error)
        let { message } = error;
        if (message == "Network Error") {
          message = "后端接口连接异常";
        }
        else if (message.includes("timeout")) {
          message = "系统接口请求超时";
        }
        else if (message.includes("Request failed with status code")) {
          message = "系统接口" + message.substr(message.length - 3) + "异常";
        }
        Message({
          message: message,
          type: 'error',
          duration: 5 * 1000
        })
        return Promise.reject(error)
      }
    )
    
    export default service