在windows应用程序中运行asp.net程序的下级目录问题

重载SimpleWorkerRequest

为了能运行下级目录的aspx文件，我们不能象解决中文乱码的方式重载，需要重写重多的方法。当然我也不清楚需要重写哪些方法，我想当然的重写了几个方法后，依然不然，最后只好让Cassini来告诉我了。当然让她告诉我，我只好耐心的在几乎每个方法上添加Trace.WriteLine方法。我得到了以下"提示"：

---

[3]Process...
[4]MapPath(String path="/mag/Maintain/AdList.aspx") should return D:\Magazine\Mag.Web.App\Maintain\AdList.aspx...
[5]GetAppPath() should return /mag
[6]MapPath(String path="/mag") should return D:\Magazine\Mag.Web.App...
[7]MapPath(String path="") should return C:\WINDOWS\system32...
[8]GetAppPath() should return /mag
[9]GetAppPath() should return /mag
[10]GetFilePath() should return /mag/Maintain/AdList.aspx
[11]MapPath(String path="/mag/Maintain/AdList.aspx") should return D:\Magazine\Mag.Web.App\Maintain\AdList.aspx...
[12]MapPath(String path="/mag/Maintain") should return D:\Magazine\Mag.Web.App\Maintain...
[13]GetAppPath() should return /mag
[14]MapPath(String path="/mag/Maintain/AdList.aspx") should return D:\Magazine\Mag.Web.App\Maintain\AdList.aspx...
[15]GetAppPathTranslated() should return D:\Magazine\Mag.Web.App\
"141cf04": 已加载"c:\windows\assembly\gac\system.web.regularexpressions\1.0.5000.0__b03f5f7f11d50a3a\system.web.regularexpressions.dll"，未加载符号。
[16]GetAppPath() should return /mag
....
[20]MapPath(String path="/mag/global.asax") should return D:\Magazine\Mag.Web.App\global.asax...
...
[24]MapPath(String path="") should return C:\WINDOWS\system32...
[25]GetAppPathTranslated() should return D:\Magazine\Mag.Web.App\
...
[29]GetUriPath() should return /mag/Maintain/AdList.aspx
[30]GetFilePathTranslated() should return D:\Magazine\Mag.Web.App\Maintain\AdList.aspx
[31]MapPath(String path="/mag/Maintain") should return D:\Magazine\Mag.Web.App\Maintain...
[32]MapPath(String path="/mag/Maintain/CustomServiceList.aspx") should return D:\Magazine\Mag.Web.App\Maintain\CustomServiceList.aspx...
...
"141cf04": 已加载"c:\windows\assembly\gac\mscorlib.resources\1.0.5000.0_zh-chs_b77a5c561934e089\mscorlib.resources.dll"，未加载符号。
"141cf04": 已加载"c:\windows\assembly\gac\system.data.resources\1.0.5000.0_zh-chs_b77a5c561934e089\system.data.resources.dll"，未加载符号。
[65]SendResponseFromMemory...
[66]SendResponseFromMemory...
[67]SendResponseFromMemory...
[68]FlushResponse...
[69]SendResponseFromMemory...
[70]FlushResponse...

---

省略了一些输出，大家可以留意一下以"[数字]"开头的行。于是我就有了足够的信息去重写了，为了方便测试，我因应我的环境，固定了两个变量

/**//// <summary> 
/// 测试用。asp.net应用程序所在的目录 
/// </summary> 
public const string APP_FOLD = @"D:\Magazine\Mag.Web.App"; 
/**//// <summary> 
/// 测试用。asp.net的虚拟应用程序名 
/// </summary> 
public const string APP_VIRT = "/foo";

以下是完整的代码

    public class MyRequest:SimpleWorkerRequest 
    {
        /**//// <summary>
        /// 测试用。asp.net应用程序所在的目录
        /// </summary>
        public const string APP_FOLD = @"D:\Magazine\Mag.Web.App";
        /**//// <summary>
        /// 测试用。asp.net的虚拟应用程序名
        /// </summary>
        public const string APP_VIRT = "/foo";

        private string _filePath;
        private string _path;
        
        private ArrayList        _responseBodyBytes;
        private FileStream        _file;
        private System.IO.MemoryStream mem;
        private System.IO.StreamWriter writer;
        public MyRequest(string pWebPage, string pQuery,string pFile):base(String.Empty,pQuery,null)
        {
            this.mem = new MemoryStream();

//            this.writer = new StreamWriter(pFile,false,Encoding.GetEncoding("gb2312"));
            this.writer = new StreamWriter(pFile,false,Encoding.UTF8);
            this._responseBodyBytes = new ArrayList();
            this.initFilePath(pWebPage);
        }

        private void initFilePath(string path)
        {
            this._path = path;            
            string str = string.Format("{0}\\{1}",APP_FOLD, path);            
            str = str.Replace("/","\\");
            this._filePath = str;    
        }

        重写HttpWorkerRequest相关方法#region 重写HttpWorkerRequest相关方法

        public override String GetUriPath() 
        {
            return APP_VIRT + "/" + _path;
        }        

        public override String GetFilePath() 
        {
            return APP_VIRT + "/" +  _path;
        }

        public override String GetFilePathTranslated() 
        {
            return this._filePath;
        }

        public override String GetAppPath() 
        {
            return APP_VIRT;
        }

        public override String GetAppPathTranslated() 
        {
            return  APP_FOLD;
        }


    
        public override void SendResponseFromMemory(byte[] data, int length) 
        {
            if (length > 0) 
            {
                byte[] bytes = new byte[length];
                Buffer.BlockCopy(data, 0, bytes, 0, length);
                _responseBodyBytes.Add(bytes);
            }
        }

        public override void FlushResponse(bool finalFlush) 
        {
            for (int i = 0; i < _responseBodyBytes.Count; i++) 
            {
                byte[] bytes = (byte[])_responseBodyBytes[i];                

                this.mem.Write(bytes,0,bytes.Length);            
            }


            _responseBodyBytes = new ArrayList();

            if (finalFlush) 
            {
                System.IO.StreamReader read = new StreamReader(this.mem);
                this.mem.Position = 0;
                string str = read.ReadToEnd();
                this.writer.Write(str);
                this.writer.Close();        

            }
        }
        #endregion
        
    }