转换blob下载
/*** blob文件下载* @param {Blob} blob* @param {string} fileName* @return {*} void*/
export const downloadBlob = (blob: Blob, fileName: string) => {const url = URL.createObjectURL(blob);const a = document.createElement("a");a.href = url;a.download = fileName;a.click();URL.revokeObjectURL(url);
};fetch("image url").then(res => res.blob()).then(res => downloadBlob(res, file));
体验地址 我的网站 欢迎来访
http://hongbin.xyz/sourceSquare
相关代码
/*** 获取文件拓展名 123.png -> .png | ""* @param {string} path* @return {string} ext*/
export const getExt = (path: string): string => {const split = path.match(/\w+(\.\w+)$/);return split ? split[1] : "";
};/*** 常见的图片后缀名数组*/
export const imageExt = [".gif", ".png", ".jpg", ".jpeg", ".avif", ".webp"];
react中使用 像 .apk等其他文件可以下载 可以区分后缀名决定是否转换blob下载
return <>{imageExt.includes(getExt(file)) ? (<spanonClick={() => {fetch(`${downloadSourcePath}${file}`).then(res => res.blob()).then(res => downloadBlob(res, file));}}>下载</span>) : (<a href={`${downloadSourcePath}${file}`} download={file}>下载</a>)}</>
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