public static bool DownLoad(string url, string path, string contentType)
{
try
{
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
req.ServicePoint.Expect100Continue = false;
req.Method = "GET";
req.KeepAlive = true;
req.ContentType = contentType;// "image/png";
using (HttpWebResponse rsp = (HttpWebResponse)req.GetResponse())
{
using (Stream reader = rsp.GetResponseStream())
{
using (FileStream writer = new FileStream(path, 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);
}
}
}
}
return true;
}
catch (Exception e)
{
SystemLog.WriteAppLog("HttpRequestHelper.DownLoad", e.Message);
return false;
}
try
{
WebClient mywebclient = new WebClient();
string direcotry = path.Substring(0, path.LastIndexOf('/'));
if (!System.IO.Directory.Exists(direcotry))
System.IO.Directory.CreateDirectory(direcotry);
mywebclient.DownloadFile(url, path);
}
catch (Exception e)
{
SystemLog.WriteAppLog("HttpRequestHelper.DownLoad", e.Message);
return false;
}
return true;
}
{
try
{
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
req.ServicePoint.Expect100Continue = false;
req.Method = "GET";
req.KeepAlive = true;
req.ContentType = contentType;// "image/png";
using (HttpWebResponse rsp = (HttpWebResponse)req.GetResponse())
{
using (Stream reader = rsp.GetResponseStream())
{
using (FileStream writer = new FileStream(path, 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);
}
}
}
}
return true;
}
catch (Exception e)
{
SystemLog.WriteAppLog("HttpRequestHelper.DownLoad", e.Message);
return false;
}
}
//第二种方式
public static bool DownLoad(string url, string path)
{try
{
WebClient mywebclient = new WebClient();
string direcotry = path.Substring(0, path.LastIndexOf('/'));
if (!System.IO.Directory.Exists(direcotry))
System.IO.Directory.CreateDirectory(direcotry);
mywebclient.DownloadFile(url, path);
}
catch (Exception e)
{
SystemLog.WriteAppLog("HttpRequestHelper.DownLoad", e.Message);
return false;
}
return true;
}