本文实例讲述了Asp.Net的FileUpload类实现上传文件的方法。分享给大家供大家参考。
具体功能代码如下：
using System.Collections.Generic;
using System.Text;
using System.Web.UI;
using System.Web;
using System.Web.UI.WebControls;
using System.Collections;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
namespace CSFramework.BLL
{
/// <summary>
/// 支持上传的文件类型
/// </summary>
public enum UploadFileType
{
ArticleAttachment = 1,
Image = 2,
Video = 3,
All = 4
}
/// <summary>
/// 上传文件管理类
/// </summary>
public class CFileUpload
{
private FileUpload _fileUpload;
private string _savePath;
private string _LastUploadedFile = string.Empty;
private bool _AutoGenFileName = false;
private bool _AutoGenWatermark = false;
public string LastUploadedFile { get { return _LastUploadedFile; } }
private string _Error = "";
private string PICTURE_FILE = "[.gif.png.jpeg.jpg]";
private string ZIP_FILE = "[.zip.rar]";
private string MUILT_MEDIA_FILE = "[.mpeg.mpg.fla.wma]";
private int IMG_MAX_WIDTH = 700;//指定宽度
private int IMG_MAX_HEIGHT = 0;//未指定高度
private int MAX_SIZE_UPLOAD = 1024;//最大支持上传小于1MB的文件。
/// <summary>
/// 构造器
/// </summary>
/// <param name="fileUpload">Asp.net FileUpload对象</param>
/// <param name="savePath">保存目录，不包含文件名</param>
/// <param name="autoGenFileName">自动生成文件名</param>
public CFileUpload(FileUpload fileUpload, string savePath, bool autoGenFileName, bool autoGenWatermark)
{
_savePath = savePath;
_fileUpload = fileUpload;
_AutoGenFileName = autoGenFileName;
_AutoGenWatermark = autoGenWatermark;
}
/// <summary>
/// 构造器
/// </summary>
/// <param name="fileUpload">Asp.net FileUpload对象</param>
/// <param name="savePath">保存目录，不包含文件名</param>
public CFileUpload(FileUpload fileUpload, string savePath)
{
_savePath = savePath;
_fileUpload = fileUpload;
}
/// <summary>
/// 上传RAR文件
/// </summary>
public bool UploadRARFile()
{
return DoUpload(ZIP_FILE);
}
/// <summary>
/// 上传视频文件
/// </summary>
public bool UploadVideo()
{
return DoUpload(MUILT_MEDIA_FILE);
}
/// <summary>
/// 上传图片文件
/// </summary>
public bool UploadImage()
{
return DoUpload(PICTURE_FILE);
}
public bool UploadImage(int maxWidth, int maxHeight)
{
this.IMG_MAX_WIDTH = maxWidth;
this.IMG_MAX_HEIGHT = maxHeight;
return DoUpload(PICTURE_FILE);
}
/// <summary>
/// 上传任何支持的文件
/// </summary>
public bool UploadAnySupported()
{
return DoUpload(PICTURE_FILE ZIP_FILE MUILT_MEDIA_FILE);
}
/// <summary>
/// 生成新的文件名
/// </summary>
private string GetNewFileName(string folder, string fileName)
{
if (_AutoGenFileName) //自动生成32位GUID文件名
{
string ext = System.IO.Path.GetExtension(fileName);
string newfile = Guid.NewGuid().ToString().Replace("-", "") ext;
return folder newfile;
}
else
{
if (System.IO.File.Exists(folder fileName))
{
string ext = System.IO.Path.GetExtension(fileName);
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