js 页面下载3中方式

1. window.location.href = '请求路径'get方式
}


2. fetch('请求路径方式拼接上去'get方式).then(res => res.blob().then(blob => {
   const a = document.createElement('a')
   const url = window.URL.createObjectURL(blob)
   const filename = 'aa.xlsx'
   a.href = url
   a.download = filename
   a.click()
   window.URL.revokeObjectURL(url)
 }))


3.this.exportData.campusId = this.campusId
this.exportData.time = this.changeTimes(this.createEndTime)
axios({
  url:'路径'
  method: '方式',
  type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
  data: 参数,
  responseType: 'blob',
  timeout: 120000
}).then(response => {
  const blob = new Blob([response.data])
  const fileName ='aa.xlsx'
  if ('download' in document.createElement('a')) { // 非IE下载
    const elink = document.createElement('a')
    elink.download = fileName
    elink.style.display = 'none'
    elink.href = URL.createObjectURL(blob)
    document.body.appendChild(elink)
    elink.click()
    URL.revokeObjectURL(elink.href) // 释放URL 对象
    document.body.removeChild(elink)
  } else { // IE10+下载
    navigator.msSaveBlob(blob, fileName)
  }