前端vue中文件下载的三种方式汇总
//method方法
handleExport(row){
const url="/user/downloadExcel"
const options = {snapshotTime:formatDate(new Date(row.snapshotTime), 'yyyy-MM-dd hh:mm')}
exportExcel(url,options)
}
/**
* 封装导出Excal文件请求
* @param url
* @param data
* @returns {Promise}
*/
//api.js
export function exportExcel(url, options = {}) {
return new Promise((resolve, reject) => {
console.log(`${url} 请求数据,参数=>`, JSON.stringify(options))
axios.defaults.headers['content-type'] = 'application/json;charset=UTF-8'
axios({
method: 'post',
url: url, // 请求地址
data: options, // 参数
responseType: 'blob' // 表明返回服务器返回的数据类型
}).then(
response => {
resolve(response.data)
let blob = new Blob([response.data], {
type: 'application/vnd.ms-excel'
})
console.log(blob)
let fileName = Date.parse(new Date()) + '.xlsx'
if (window.navigator.msSaveOrOpenBlob) {
// console.log(2)
navigator.msSaveBlob(blob, fileName)
} else {
// console.log(3)
var link = document.createElement('a')
link.href = window.URL.createObjectURL(blob)
link.download = fileName
link.click()
//释放内存
window.URL.revokeObjectURL(link.href)
}
},
err => {
reject(err)
}
)
})
}