我正在尝试使用DownloadManager从服务器下载文件,但是下载失败并显示“下载不成功”,我已经阅读了以下链接中的Download Manager问题:android-chrome-browser-unnecessarily-renames-names-types-of-downloaded-files,所以我尝试通过在DownloadManagerRequest中添加RequestHeader来下载文件,但是没有任何反应。请查看下面Downloader类代码片段,有人可以建议我使用正确的方法从URL下载文件吗?
url:
http://-storage.net/95-****/95-3194.pdf?AWSAccessKeyId=T9YG9HWQC1LHE5G5VF38&Expires=1483443248&Signature=Z%2BkWzfEI2VawbCx%2F2Yto1kPcJKA%3D
谢谢
http://-storage.net/95-****/95-3194.pdf?AWSAccessKeyId=T9YG9HWQC1LHE5G5VF38&Expires=1483443248&Signature=Z%2BkWzfEI2VawbCx%2F2Yto1kPcJKA%3D
谢谢
public void download(Uri uri) {
if (!isDownloading()) {
String fileName=getName(uri);
DownloadManager.Request request = new DownloadManager.Request(uri);
request.setTitle(fileName);
request.setNotificationVisibility(1);
request.allowScanningByMediaScanner();
request.addRequestHeader("Content-Type", "application/octet-stream");
request.addRequestHeader("Content-Disposition", "attachment; filename=\""+fileName.split("\\.")[0]+"."+fileName.split("\\.")[1].toUpperCase()+"\"");
String cookieContent = getCookieFromAppCookieManager(uri.getHost());
request.addRequestHeader("Cookie", cookieContent);
downloadId = downloadManager.enqueue(request);
register();
}
}
以下代码块返回文件名
private String getName(Uri uri) {
String name=uri.toString().split("jabord/")[1].split("\\?")[0];
return name;
}
返回应用程序cookie管理器
public String getCookieFromAppCookieManager(String url) {
android.webkit.CookieManager cookieManager = android.webkit.CookieManager.getInstance();
if (cookieManager == null) {
return null;
}
String rawCookieHeader = null;
// Extract Set-Cookie header value from Android app CookieManager for this URL
rawCookieHeader = cookieManager.getCookie(url);
if (rawCookieHeader == null) {
return null;
}
return rawCookieHeader;
};