<!–Main.Aspx–>
<%@ page language=”C#” %>
<%@ import namespace=System.IO %>
<script runat=”server”>
protected override void OnInit (EventArgs e)
…{
int id;
try
…{
id = int.Parse (Request.QueryString["id"]);
}
catch
…{
throw (new Exception (“页面没有指定id”));
}
string filename=Server.MapPath(“statichtml_”+id+”.html”);
//尝试读取已有文件
Stream s = GetFileStream (filename);
if (s != null)//如果文件存在并且读取成功
…{
using (s)
…{
Stream2Stream (s, Response.OutputStream);
Response.End ();
}
}
//调用Main_Execute,并且获取其输出
StringWriter sw = new StringWriter ();
Server.Execute (“Main_Execute.aspx”, sw);
string content = sw.ToString ();
//输出到客户端
Response.Write(content);
Response.Flush();
//写进文件
try
…{
using (FileStream fs = new FileStream (filename, FileMode.Create, FileAccess.Write, FileShare.Write))
…{
using (StreamWriter streamwriter = new StreamWriter (fs, Response.ContentEncoding))
…{
streamwriter.Write (content);
}
}
}
finally
…{
//Response.End ();
}
}
static public void Stream2Stream (Stream src, Stream dst)
…{
byte[] buf = new byte[4096];
while (true)
…{
int c = src.Read (buf, 0, buf.Length);
if(c==0)
return;
dst.Write (buf, 0, c);
}
}
public Stream GetFileStream(string filename)
…{
try
…{
DateTime dt = File.GetLastWriteTime (filename);
TimeSpan ts=dt – DateTime.Now;
if(ts.TotalHours>1)
return null; //1小时后过期
return new FileStream (filename, FileMode.Open, FileAccess.Read, FileShare.Read);
}
catch
…{
return null;
}
}
</script>
<!–Main_Execute.aspx–>
<%@ page language=”C#” %>
<html>
<head runat=”server”>
<title>Untitled Page</title>
</head>
<body>
ID:
<%=Request.QueryString["id"]%>
</body>
</html>
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来源:Csdn
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