vue 文件下载函数

1. xxx.sh文件下载

success_download(name){
  var download_file_name = name.split('.')[0]
  var xhr = new XMLHttpRequest()
  var url = '/load_balance/download/'
  // 设置响应类型为blob类型
  // xhr.responseType = "blob"
  xhr.onload = function(){
    if(this.status == "200"){
      var result = JSON.parse(xhr.response).data
      // 将文件流保存到a标签
      var blob = new Blob([result], {type: 'text/plain'})
      var aElem = document.createElement('a')
      document.body.appendChild(aElem) 
      aElem.href = window.URL.createObjectURL(blob)
      aElem.download = "下载文件_" + download_file_name + ".sh"
      aElem.onload = function(){
        window.URL.revokeObjectURL(aElem.href)
      }
      aElem.click()
      document.body.removeChild(aElem)
    }else{
      alert("导出失败")
    }
  }
}