RT ;一个是WebClient里的DownloadFile方法;另一个是:“
WebRequest req = WebRequest.Create(url);
WebResponse pos = req.GetResponse();
long totalbytes = pos.ContentLength;
Stream s = pos.GetResponseStream();
FileStream fs = new FileStream(savefullpath, FileMode.OpenOrCreate, FileAccess.Write);
”来下载文件!
不知道这两种方法有什么区别;另外“WebRequest req = WebRequest.Create(url); ”这句我在使用时感觉没什么用来着 也请大神下作用
WebRequest req = WebRequest.Create(url);
WebResponse pos = req.GetResponse();
long totalbytes = pos.ContentLength;
Stream s = pos.GetResponseStream();
FileStream fs = new FileStream(savefullpath, FileMode.OpenOrCreate, FileAccess.Write);
”来下载文件!
不知道这两种方法有什么区别;另外“WebRequest req = WebRequest.Create(url); ”这句我在使用时感觉没什么用来着 也请大神下作用
{
try
{
WebClient wc = new WebClient();
wc.DownloadFile(@"E:\MyWeb\MyWeb2\Folder\" + path1, path2);
return "下载成功";
}
catch
{
return "下载失败";
}直接这样程序照样运行
获取响应的数据流Stream,然后打开本地文件将传输数据写入文件。这种方法和 DownloadFile方法有什么区别吗
public string GetF(string path1,string path2)
{
try
{
//WebRequest wr = WebRequest.Create(@"E:\MyWeb\MyWeb2\Folder\");
WebClient wc = new WebClient();
wc.DownloadFile(@"E:\MyWeb\MyWeb2\Folder\" + path1, path2);
return "下载成功";
}
catch
{
return "下载失败";
}
}
[WebMethod]
public string GetFF(string path1, string path2)
{
try
{
WebRequest wr = WebRequest.Create(@"E:\MyWeb\MyWeb2\Folder\"+path1);
WebResponse pos = wr.GetResponse();
Stream st = pos.GetResponseStream();
FileStream fs = new FileStream(path2,FileMode.OpenOrCreate,FileAccess.Write);
BinaryReader br = new BinaryReader(st);
StreamReader reader = new StreamReader(st);
byte[] bt = br.ReadBytes((int)st.Length);
fs.Write(bt,0,bt.Length);
st.Close();
fs.Close();
return "下载成功";
}
catch
{
return "下载失败";
} }
这两种方法都可以 就是不知道区别