excel导出

function exportAllDeviceData (data) {
  return instance({
    url: baseUrl + devManage.exportAllDeviceUrl,
    headers: {
      'accept': 'application/octet-stream' // 重要
    },
    method: 'post',
    data: data,
    responseType: 'blob'
  }).then(function (response) {
    const data = response.data
    const fileName = 'deviceList.xls'// 重要--决定下载文件名
    util.exportExcel(data, fileName)
  })
}

/**************** util.js ******************************/
function exportExcel (excelBlob, fileName) {
  if (browse.isIE() || browse.isIE11()) {
    window.navigator.msSaveOrOpenBlob(excelBlob, fileName)
  } else {
    const url = URL.createObjectURL(excelBlob)// 重要
    const link = document.createElement('a')
    link.href = url
    link.download = fileName
    link.click()
    link.remove()
  }
}

/**************** browse.js ******************************/
/**
 * 判断是否是IE
 */
function isIE () {
  if (!!window.ActiveXobject || 'ActiveXObject' in window) {
    return true
  } else {
    return false
  }
}
/**
 * 判断是否是IE11
 */
function isIE11 () {
  if ((/Trident\/7\./).test(navigator.userAgent)) {
    return true
  } else {
    return false
  }
}

export default {
  isIE,
  isIE11
}