/// <summary>
/// 下载
/// </summary>
/// <param name="resourceUri">下载地址：/api/downLoadPPT?pptId=3</param>
/// <param name="extension">文件后缀</param>
/// <param name="downloadPath"></param>
/// <returns></returns>
public static bool DownloadFile(string resourceUri, string extension, out string downloadPath)
{
downloadPath = string.Empty;
if (string.IsNullOrWhiteSpace(resourceUri))
{
return(false);
}
try
{
WebRequest request = WebRequest.Create(resourceUri);
WebResponse response = request.GetResponse();
using (Stream reader = response.GetResponseStream())
{
var userDownloadFolder = UtilsCommonPath.GetDownloadFolder();
downloadPath = Path.Combine(userDownloadFolder, $"{Guid.NewGuid()}{extension}"); //图片路径命名
using (FileStream writer = new FileStream(downloadPath, FileMode.OpenOrCreate, FileAccess.Write))
{
byte[] buff = new byte[512];
int c = 0; //实际读取的字节数
while ((c = reader.Read(buff, 0, buff.Length)) > 0)
{
writer.Write(buff, 0, c);
}
response.Close();
}
}
}
catch (Exception ex)
{
return(false);
}
//下载成功
return(true);
}
/// <summary>
/// 下载
/// Headers中含有"Content-Disposition"
/// </summary>
/// <param name="resourceUri">下载地址：/api/downLoadPPT?pptId=3</param>
/// <param name="downloadPath"></param>
/// <returns></returns>
public static bool DownloadWithDisposition(string resourceUri, out string downloadPath)
{
downloadPath = string.Empty;
if (string.IsNullOrWhiteSpace(resourceUri))
{
return(false);
}
try
{
var userDownloadFolder = UtilsCommonPath.GetDownloadFolder();
var downloadResult = DownloadWithDisposition(resourceUri, userDownloadFolder, out downloadPath);
if (downloadResult)
{
//下载成功
return(true);
}
}
catch (Exception ex)
{
LogHelper.LogError($"资源{resourceUri}下载失败", ex);
}
return(false);
}
