草根站长论坛's Archiver Asp.Net中动态页面转静态页面,想优化的进来学下
关于在Asp.Net中动态页面转静态页面的方法网上比较多。结合实际的需求，我在网上找了一些源代码，并作修改。现在把修改后的代码以及说明写一下。~j/A&fKm
一个是一个页面转换的类，该类通过静态函数Changfile()来实现，动态页面到静态页面的转换。 [code]using System;
using System.Data;)Tn B4K9l ?
using System.Configuration;
using System.Web; OY;M#Tm Z:}
using System.Web.Security; ~lao1a8Uq
using System.Web.UI;
using System.Web.UI.WebControls; S*q-S-{9r6I
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Text;
using System.IO;
/**////B1}3H4BE4{&m [
/// Summary description for HtmlProxy
///
public class HtmlProxy
...{+k9h es+J;Uq
public HtmlProxy()
...{2x E ?Y%r,W'Hw
}
public static bool ChangeFile(int id)
...{ p H&F |,E;mE1M
string filename = HttpContext.Current.Server.MapPath("Post_" + id + ".html");2Vp iG3z
//尝试读取已有文件 Stream st = GetFileStream(filename);$Lp&` z;b$qI[/[
//如果文件存在并且读取成功zMP7oI
if (st != null)4xH9^ PYU5^}p
...{
using (st)%H)LhE&gG q s
...{l8N6Iu EQ-{T
StreamToStream(st, HttpContext.Current.Response.OutputStream);$HF \&c,kw {g
return true;
//Response.End();
}
}wad,c*kG-y0w)qD
else
...{#Dx%N1F/e)[
StringWriter sw = new StringWriter();6Ih4U C#Z*\p
HttpContext.Current.Server.Execute("ForumDetail.aspx?PID=" + id, sw);
string content = sw.ToString();"u` F _t:Oe0m n
//写进文件 try7~vs!^ id
...{RC$K7wG5a _*q!t
using (FileStream fs = new FileStream(filename, FileMode.Create, FileAccess.Write, FileShare.Write))VJ-y$Tf2I4lxn
...{0b@1dt1Jg/},\
using (StreamWriter stw = new StreamWriter(fs, HttpContext.Current.Response.ContentEncoding))#s vR)s;? N
...{
stw.Write(content);1J Fv,K;y8o/^ Kz8j6Gt
}
}.j T6OR M
return true;
}/f/] k2Fz*T%j
catch ...OiL#AH&s.u+L_
}
}*J'KC5V7G B8?v7Y
private static Stream GetFileStream(string filename)7un T N)K,BJ&bbG%f
...{5DD)S"tAJ
try hZu9zi&fPc h9@ q
...{0`b,o!{h7}f$~
DateTime dt = File.GetLastWriteTime(filename);
TimeSpan ts = dt - DateTime.Now;p K\1c9[/fHYU ~
if (ts.TotalHours >1)
...{x4s+i+FSr(?
//一小时后过期
return null; t kXdW3]
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return new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read);3^.L ] U?2}4MyO EKz
}
catch ...
}
static public void StreamToStream(Stream src, Stream dst)1FBaD)i Y
...{#{#qo-JueOvV
byte[] buf = new byte[4096];
while (true)
...{
int c = src.Read(buf, 0, buf.Length);
if (c == 0)
return; wo,CZ1M
dst.Write(buf, 0, c); {z.T!`0kDk q#j3l
}
}
}
在页面文件中，ForURL.aspx的后台代码如下：
protected void Page_Load(object sender, EventArgs e){0Y l Z(g m"f5JC
...{
try
...{
int id = int.Parse(Request.QueryString["PID"]);L Im}s7F7i)]
if(HtmlProxy.ChangeFile(id))6Y2v [aB ~D E*w8t
...{ lCb,qV
Response.Redirect("Post_" + id + ".html");
}K_Am b%Q)Lk
else
...{j N M9` Be A)H~
Response.Redirect("Post.aspx?PID=" + id );
}
}
catch ...{
}[/code]
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