public bool downfile(string url,string LocalPath)
{
try
{
Uri u=new Uri(url);
HttpWebRequest mRequest= (HttpWebRequest)WebRequest.Create(u);
mRequest.Method="GET";
mRequest.ContentType="application/x-www-form-urlencoded"; HttpWebResponse wr= (HttpWebResponse)mRequest.GetResponse(); Stream sIn= wr.GetResponseStream();
FileStream fs=new FileStream(LocalPath, FileMode.Create, FileAccess.Write);
long length= wr.ContentLength;
long i=0;
decimal j=0;
while (i < length)
{
byte[] buffer=newbyte[1024];
i+= sIn.Read(buffer,0, buffer.Length);
fs.Write(buffer,0, buffer.Length);
if((i%1024)==0)
{
j=Math.Round(Convert.ToDecimal((Convert.ToDouble(i)/Convert.ToDouble(length))*100),4);
statusBar1.Text="当前下载文件大小:"+length.ToString()+"字节 当前下载大小:"+i+"字节 下载进
度"+j.ToString()+"%";
}
else
{
statusBar1.Text="当前下载文件大小:"+length.ToString()+"字节 当前下载大小:"+i+"字节";
}
} sIn.Close();
wr.Close();
fs.Close();returntrue;
}catch {returnfalse; }
} 我用上面的代码,当执行到 FileStream fs=new FileStream(LocalPath, FileMode.Create, FileAccess.Write);时就报错,提示我没有访问LocalPath的权限这个是为什么我呢
{
try
{
Uri u=new Uri(url);
HttpWebRequest mRequest= (HttpWebRequest)WebRequest.Create(u);
mRequest.Method="GET";
mRequest.ContentType="application/x-www-form-urlencoded"; HttpWebResponse wr= (HttpWebResponse)mRequest.GetResponse(); Stream sIn= wr.GetResponseStream();
FileStream fs=new FileStream(LocalPath, FileMode.Create, FileAccess.Write);
long length= wr.ContentLength;
long i=0;
decimal j=0;
while (i < length)
{
byte[] buffer=newbyte[1024];
i+= sIn.Read(buffer,0, buffer.Length);
fs.Write(buffer,0, buffer.Length);
if((i%1024)==0)
{
j=Math.Round(Convert.ToDecimal((Convert.ToDouble(i)/Convert.ToDouble(length))*100),4);
statusBar1.Text="当前下载文件大小:"+length.ToString()+"字节 当前下载大小:"+i+"字节 下载进
度"+j.ToString()+"%";
}
else
{
statusBar1.Text="当前下载文件大小:"+length.ToString()+"字节 当前下载大小:"+i+"字节";
}
} sIn.Close();
wr.Close();
fs.Close();returntrue;
}catch {returnfalse; }
} 我用上面的代码,当执行到 FileStream fs=new FileStream(LocalPath, FileMode.Create, FileAccess.Write);时就报错,提示我没有访问LocalPath的权限这个是为什么我呢
2,先建立一个文件夹,在安全项里面指定一些用户的权限,比如:aspnet,NETWORK_SERVICE用户的权限。你下载的时候,就下到这个文件夹里面。看看是否还报错误。
也谢谢大家这么积极地为咱的梅子解决问题