vue 下载文件并且重命名

<el-button type="primary" @click="xz(scope.row)" size="small">下载</el-button>

methods内定义方法

　　　　　　　xz(row) {
this.getBlob(row.value, (blob) => {
this.saveAs(blob, row.title)
})
},
getBlob(url, cb) {
var xhr = new XMLHttpRequest()
xhr.open('GET', url, true)
xhr.responseType = 'blob'
xhr.onload = function() {
if (xhr.status === 200) {
cb(xhr.response)
}
}
xhr.send()
},
saveAs(blob, filename) {
if (window.navigator.msSaveOrOpenBlob) {
navigator.msSaveBlob(blob, filename)
}
else {
var link = document.createElement('a')
var body = document.querySelector('body')
link.href = window.URL.createObjectURL(blob)
link.download = filename
link.style.display = 'none'
body.appendChild(link)
link.click()
body.removeChild(link)
window.URL.revokeObjectURL(link.href)
}
},

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