1.下载文件所需方法
后台返回路径格式:/annex/附件1:青海省气象数据提供使用协议.docx
前端获取方法:http://192.136.1.111:8080/file/get.htm?url=/product/2024/ce836e34a09e45d4a0ebef7d9f658175.pdf
<el-link type="primary" @click="downloadFile(downLoadUrl + param.annex2,'xxxxx.doc')">
getBlob(url) {
return new Promise((resolve) => {
const xhr = new XMLHttpRequest()
xhr.open('GET', url, true)
xhr.responseType = 'blob'
xhr.onload = () => {
if (xhr.status === 200) {
resolve(xhr.response)
}
}
xhr.send()
})
},
/**
* 保存 blob
* filename 想要保存的文件名称
*/
saveAs(blob, filename) {
if (window.navigator.msSaveOrOpenBlob) {
navigator.msSaveBlob(blob, filename)
} else {
const link = document.createElement('a')
const body = document.querySelector('body')
link.href = window.URL.createObjectURL(blob)
link.download = filename
// fix Firefox
link.style.display = 'none'
body.appendChild(link)
link.click()
body.removeChild(link)
window.URL.revokeObjectURL(link.href)
}
},
/**
* 下载
* @param {String} url 目标文件地址
* @param {String} filename 想要保存的文件名称
*/
downloadFile(url, filename) {
this.getBlob(url).then((blob) => {
this.saveAs(blob, filename)
})
}