axios.interceptors.request.use(拦

axios.interceptors.request.use(拦截器)

//请求
axios.interceptors.request.use(
  function(config) {
    if (config.method === 'get' && config.url != undefined) {
      if (config.params == undefined) {
        config.params = {}
      }
      config.params.__preventCache = new Date().getTime()
    }
    config.withCredentials = true // 允许携带token ,这个是解决跨域产生的相关问题
    return config
  },
  function(error) {
    return Promise.reject(error)
  }
)

//返回状态判断
axios.interceptors.response.use(
  response => {
    return response
  },
  error => {
    if (error.response.status == '401') {
      if (process.env.NODE_ENV === 'local') {
        window.location.href = '/#/login'
      } else {
        window.location.href =
          loginUrl + '?app=7&redirect=' + encodeURIComponent(document.URL)
      }
    } else if (error.response.status == '400') {
      ElementUI.Message.error(error.response.data.message)
    } else {
      ElementUI.Message.error(error.response.data.message)
    }
    return Promise.reject(error)
  }
)