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")
		}
	}
}