//文件导出 在index.ts 中
export function downloadHandle(url: string,params?:object, filename?: string, method: string = 'GET'){
try {
downloadLoadingInstance = ElLoading.service({
text: "正在生成下载数据，请稍候",
background: "rgba(0, 0, 0, 0.7)",
});
return service.get(url, {
responseType: 'blob',
params:params?params:''
}).then(async (resp: any) => {
// 创建a标签
const down = document.createElement('a')
// 文件名没传，则使用时间戳
if (filename) {
down.download = filename
} else {
const downName = resp.headers['content-disposition'].split('=')[1]
down.download = decodeURI(downName)
}
// 隐藏a标签
down.style.display = 'none'
// 创建下载url
down.href = URL.createObjectURL(
new Blob([resp.data], {
type: resp.data.type
})
)
// 模拟点击下载
document.body.appendChild(down)
down.click()
// 释放URL
URL.revokeObjectURL(down.href)
// 下载完成移除
document.body.removeChild(down)
downloadLoadingInstance.close();
}).catch((r: any) => {
console.error(r);
ElMessage.error('下载文件出现错误，请联系管理员！');
downloadLoadingInstance.close();
});
} catch (err: any) {
ElMessage.error(err.message)
}
}
在页面中 引入
import {downloadHandle} from "../../api/index";
const downloadFun = () => {
downloadHandle("/bg/customer/accountQuantity/exportExcelTemplate");
};