c#下载远程图片
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更新时间：
2019-05-21 11:31:34
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////// 从图片地址下载图片到本地磁盘
//////图片本地磁盘地址
///图片网址
///public bool DownImage(string FileName, string Url)
{
bool Value = false;
WebResponse response = null;
Stream stream = null;
try
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url);
response = request.GetResponse();
stream = response.GetResponseStream();
if (!response.ContentType.ToLower().StartsWith("text/"))
{
Value = SaveBinaryFile(response, FileName);
}
}
catch (Exception err)
{
string aa = err.ToString();
}
return Value;
}
////// Save a binary file to disk.
//////The response used to save the file
// 将二进制文件保存到磁盘
private bool SaveBinaryFile(WebResponse response, string FileName)
{
bool Value = true;
byte[] buffer = new byte[1024];
try
{
if (File.Exists(FileName))
File.Delete(FileName);
Stream outStream = System.IO.File.Create(FileName);
Stream inStream = response.GetResponseStream();
int l;
do
{
l = inStream.Read(buffer, 0, buffer.Length);
if (l > 0)
outStream.Write(buffer, 0, l);
}
while (l > 0);
outStream.Close();
inStream.Close();
}
catch
{
Value = false;
}
return Value;
}
