UpLoader.cs

using System;
using System.IO;
using System.Drawing;
using System.Drawing.Imaging;
using System.Text;
using System.Collections;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

/*Programmer:Engine
*PowerBy:EngineSystem
*Oicq:282602809
*Msn:Cangta2002@hotmail.com
*E-Mail:Hee_jun1985@163.com
*Authorization:Free
*/
namespace PowerTalkBox
{
///

/// 流处理中心
///

public class UpLoader
{
///

/// 输入服务器文件夹路径地址，返回一个流:WebForm
///

/// 服务器文件路径
///
public System.IO.Stream ReadFileStream(string FileName)
{
string path = HttpContext.Current.Server.MapPath(FileName);
return new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read);
}
///

/// 输入一个流，输出到http:WebForm
///

/// 图片流
public void OutResponse(System.IO.Stream ImageString)
{
System.IO.Stream ms = ImageString;
HttpContext.Current.Response.Buffer = true;
HttpContext.Current.Response.ExpiresAbsolute = System.DateTime.Now.AddMilliseconds(0);
HttpContext.Current.Response.Expires = 0;
HttpContext.Current.Response.CacheControl = "no-cache";
HttpContext.Current.Response.AppendHeader("Pragma", "No-Cache");
HttpContext.Current.Response.ClearContent();
// HttpContext.Current.Response.ContentType = "image/Png";
int buffersize = (int)ms.Length;
byte[] buffer = new byte[buffersize];
int count = ms.Read(buffer, 0, buffersize);
// HttpContext.Current.Response.BinaryWrite(buffer);
HttpContext.Current.Response.OutputStream.Write(buffer, 0, count);
HttpContext.Current.Response.Flush();
HttpContext.Current.Response.Close();
}
///

/// 输出一个流，输出到http:WebForm
///

/// 文件路径
public void OutResponse(string FilePath)
{
FilePath = HttpContext.Current.Server.MapPath(FilePath);
string Filname = FilePath.Substring(FilePath.LastIndexOf('/') + 1);
FileInfo fi = new FileInfo(FilePath);
FileStream MyFileStream = fi.OpenRead();
long FileSize;
FileSize = MyFileStream.Length;
byte[] Buffer = new byte[(int)FileSize];
MyFileStream.Read(Buffer, 0, (int)FileSize);
MyFileStream.Close();
HttpContext.Current.Response.ContentType = "application/octet-stream";
HttpContext.Current.Response.AddFileDependency(Filname);
HttpContext.Current.Response.BinaryWrite(Buffer);
HttpContext.Current.Response.Flush();
HttpContext.Current.Response.Close();
}
///

/// 把流存成文件到指定位置:WebForm
///

/// 文件流
/// 服务器文件路径
public void SaveStreamToFile(Stream FlStream, string FilePath)
{
//读
string path = HttpContext.Current.Server.MapPath(FilePath);
int buffersize = (int)FlStream.Length;
byte[] buffer = new byte[buffersize];
int count = FlStream.Read(buffer, 0, buffersize);
//写
FileInfo fi = new FileInfo(path);
FileStream fsw = fi.Create();
fsw.Write(buffer, 0, buffersize);
fsw.Close();

}
///

/// 读流进入字节:Common
///

///路径
public byte[] ReadStream(string FilePath)
{
Stream fs = new FileStream(FilePath, FileMode.Open, FileAccess.Read, FileShare.Read);
int buffersize = (int)fs.Length;
byte[] buffer = new byte[buffersize];
int count = fs.Read(buffer, 0, buffersize);
fs.Close();
return buffer;
}
}
}