js download page 3 ways

1. window.location.href = 'request path' get manner 
} 


2. FETCH ( 'request path spliced up' get embodiment) .then (RES => res.blob (). The then (BLOB => { 
   const A = document.createElement ( 'A') 
   const = window.URL.createObjectURL URL (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: 'path' 
  Method: 'mode', 
  type: 'file application / vnd.openxmlformats -officedocument.spreadsheetml.sheet ', 
  Data: parameters, 
  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)
  }