js import excel data conversion (attribute key to English_numeric date to standard time)

There are two directions to deal with

1. Excel date format conversion

2. Key to English

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 Go directly to the code, everyone should understand

The following is the code that handles 1 and 2 uniformly

1 complete code

// 转换excel 文件值
    transform2AxiosExcel(results) {
      // 字段中文转英文。excel中读入的是姓名,而后端需要的是username
      // 日期处理。从excel中读入的时间是一个number值，而后端需要的是标准日期。
      const mapInfo = {
        入职日期: 'timeOfEntry',
        手机号: 'mobile',
        姓名: 'username',
        转正日期: 'correctionTime',
        工号: 'workNumber',
        部门: 'departmentName',
        聘用形式: 'formOfEmployment'
      }
      const keys = Object.keys(mapInfo)
      return results.map(item => {
        return keys.reduce((obj, key) => {
          // 判断是否是非格式化日期, 用util内的函数格式化 xxxx/xx/xx
          // 再根据接口文档 需要new Date()转成标准时间 Fri Nov 05 2021 00:00:00 GMT+0800 (中国标准时间)
          if (key === '转正日期' || key === '入职日期') {
            obj[mapInfo[key]] = new Date(formatExcelDate(item[key]))
          } else {
            obj[mapInfo[key]] = item[key]
          }
          return obj
        }, {})
      })
    },

2 The method of excel numerical date conversion in the above code

The formatExcelDate method is defined in utils/index, which is the method to convert the default excel numerical date. It uses the method of a blogger on csdn, and there is a link in it. Remember that the default format is 2023/1/1 after conversion, and it needs to be converted to Fri Nov 05 2021 00:00:00 GMT+0800 (China Standard Time) just set new Date( )

Below is the code

// excel日期处理
// 把excel文件中的日期格式的内容转回成标准时间
// https://blog.csdn.net/qq_15054679/article/details/107712966
export function formatExcelDate(numb, format = '/') {
  const time = new Date((numb - 25567) * 24 * 3600000 - 5 * 60 * 1000 - 43 * 1000 - 24 * 3600000 - 8 * 3600000)
  time.setYear(time.getFullYear())
  const year = time.getFullYear() + ''
  const month = time.getMonth() + 1 + ''
  const date = time.getDate() + ''
  if (format && format.length === 1) {
    return year + format + month + format + date
  }
  return year + (month < 10 ? '0' + month : month) + (date < 10 ? '0' + date : date)
}