c#指定したフォルダにネット上のファイルをダウンロード
1794 ワード
， 。
string fileName = "aaa.txt";//
string filePath = Server.MapPath("DownLoad/aaa.txt");//
//
FileStream fs = new FileStream(filePath, FileMode.Open);
byte[] bytes = new byte[(int)fs.Length];
fs.Read(bytes, 0, bytes.Length);
fs.Close();
Response.ContentType = "application/octet-stream";
//
Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode(fileName, System.Text.Encoding.UTF8));
Response.BinaryWrite(bytes);
Response.Flush();
Response.End();
，（ ）
public void DownloadImage(string url, string path)
{
WebRequest request = WebRequest.Create(url);
request.ContentType = "impage/jpg";
WebResponse response = request.GetResponse();
using (Stream reader = response.GetResponseStream())
{
using (FileStream writer = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Write))
{
byte[] buffer = new byte[512];
int c = 0;
while ((c = reader.Read(buffer, 0, buffer.Length)) > 0)
{
writer.Write(buffer, 0, c);
}
}
}