request.js全局拦截响应结果 

    else if (res.code === 40012) { // 权限不足
      Message({
        message: res.msg || 'Error',
        type: 'error',
        duration: 3 * 1000
      })
      return Promise.reject(new Error(res.msg || 'Error'))
    }

api请求后加catch捕获异常 

sysUserApi.disableById(row.userId).then(res => {
  this.$message.success(res.msg)
  this.getByPage()
}).catch((e) => {
  console.log(e)
})

可在catch中关闭loading