aspx：

<ul style="list-style: none;display:none" class="boxs1">

<li>

<asp:Label ID="Label3" runat="server" Text="选择文件："></asp:Label>

</li>

<li>

<asp:FileUpload ID="filehtml" runat="server" Width="" Height="24px" />

</li>

</ul>

cs：

private string GetContentUrl()

{

string contenturl = "";

if (this.filehtml.HasFile) //---or has the file

//if(this.filehtml.FileName.ToString() != "")

{

string filename = this.filehtml.FileName;

string strExtName = filename.Substring(filename.LastIndexOf('.'));

if (strExtName == ".rar")

{

string strPathAndName = Server.MapPath("../filehtml/") + filename;

filehtml.PostedFile.SaveAs(strPathAndName);

string strPreFileName = filename.Substring(0, filename.LastIndexOf('.'));

strPreFileName += ".htm";

//解压Rar文件

filename = "imagfile" + DateTime.Now.ToString("yyyyMMddHHmmssfffff");

string ServerDir = @"C:\Program Files\iRAR";//rar路径

System.Diagnostics.Process Process1 = new Process();

Process1.StartInfo.FileName = ServerDir + "\\WinRAR.exe";

Directory.CreateDirectory(Server.MapPath("../filehtml/") + filename); //创建解压文件夹

Process1.StartInfo.Arguments = " x -inul -y " + strPathAndName + " " + Server.MapPath("../filehtml/") + filename;

Process1.Start();//解压开始

while (!Process1.HasExited) //等待解压的完成

{

}

contenturl = Tools.GetImagePathHeader(Request.Url.AbsoluteUri) + "filehtml/" + filename + "/" + strPreFileName; ;

}

else

{

filename = "htl" + DateTime.Now.ToString("yyyyMMddHHmmssfffff") + filename.Substring(filename.LastIndexOf('.'));

filehtml.SaveAs(Server.MapPath("../filehtml/") + filename);

contenturl = Tools.GetImagePathHeader(Request.Url.AbsoluteUri) + "filehtml/" + filename;

}

}

return contenturl;

}