Asp.Net无组件上传
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-C#
/*
Asp.Net无组件上传(1.0.0.0)。
.net Framework2.0+IIS6.0 调试通过。不可用于商业用途,只共交流使用.
--Edit By ShowBo于2007.10.19 10:00
*/
namespace ShowBo.AspNetUpLoad
{
using System;
using System.IO;
using System.Web;
using System.Text;
using System.Collections;
/// <summary>
/// 文件结构
/// </summary>
public struct MyFileInfo
{
public string FileName;//服务器端的文件名
public string SFileName;//客户端的文件名
public byte[] FileData;//文件的2进制数据
}
/// <summary>
/// 表单项收集
/// </summary>
public class FormCollection : DictionaryBase
{
/// <summary>
/// 添加项目
/// </summary>
/// <param name="Key">键</param>
/// <param name="Value">值</param>
public void Add(string Key, string Value)
{
Dictionary.Add(Key, Value);
}
/// <summary>
/// 获取或设置对应的键值
/// </summary>
/// <param name="Key">键</param>
/// <returns>值</returns>
public string this[string Key]
{
get { return (string)Dictionary[Key]; }
set { Dictionary[Key] = value; }
}
/// <summary>
/// 重写叠代借口返回,返回string类型
/// </summary>
/// <returns>IEnumerator叠代接口</returns>
public new IEnumerator GetEnumerator()
{
foreach (DictionaryEntry de in Dictionary)
{
yield return (string)de.Value;
}
}
/// <summary>
/// 删除键值
/// </summary>
/// <param name="Key">要删除的键值</param>
public void Remove(string Key)
{
Dictionary.Remove(Key);
}
}
/// <summary>
/// 上传文件收集,信息为2进制
/// </summary>
public class FileCollection : DictionaryBase
{
public void Add(string Key, MyFileInfo fileInfo)
{
Dictionary.Add(Key, fileInfo);
}
public void Remove(string Key)
{
Dictionary.Remove(Key);
}
/// <summary>
/// 重写迭代接口接口
/// </summary>
/// <returns>返回文件的MyFileInfo结构体</returns>
public new IEnumerator GetEnumerator()
{
foreach (DictionaryEntry de in Dictionary)
{
yield return (MyFileInfo)de.Value;
}
}
public MyFileInfo this[string Key]
{
get { return (MyFileInfo)Dictionary[Key]; }
set { Dictionary[Key] = value; }
}
}
/// <summary>
/// 文件上传类
/// </summary>
public class UpLoad
{
#region 变量申明
private byte[] FormData; //表单的2进制数据数组
private int formSize;//总上传字节数
private string allowExts;//默认的可以上传的文件扩展名称
private string rootPath;//文件保存的目录
private string fileErr;//文件错误信息,例如文件大小超过,扩展名不允许
private string allFile;//保存所有成功上传的文件名称
private int maxFileSize;//默认上传大小为200kb
private int fileCount;//总的上传的文件个数
private byte[] SplitStr;//2进制分隔符号
private int SplitStrLen;//分隔符号长度
byte[] CLStr = new byte[] { 13, 10 };//2进制回车
private FileCollection fileCollections = new FileCollection();//文件信息集合
private FormCollection formCollections = new FormCollection();//表单信息集合
private BinaryReader binReader;//2进制读取器
#endregion
#region 属性
/// <summary>
/// 默认的可以上传的文件扩展名称
/// </summary>
public string AllowExts
{
get { return allowExts; }
set { allowExts = value; }
}
/// <summary>
/// 文件保存的目录
/// </summary>
public string RootPath
{
get { return rootPath; }
set
{
string tempPath = value;
if (tempPath.LastIndexOf("/") == -1)
rootPath = tempPath + "/";
else
rootPath = tempPath;
}
}
/// <summary>
/// 错误信息,只读属性
/// </summary>
public string ErrorStr
{
get
{
if (fileErr != "")
fileErr = "发生如下错误\n" + fileErr;
return fileErr;
}
}
/// <summary>
/// 文件信息集合,2进制流形式缓存数据,只读属性
/// </summary>
public FileCollection FileCollections
{
get { return fileCollections; }
}
/// <summary>
/// 表单信息集合,只读属性
/// </summary>
public FormCollection FormCollections
{
get { return formCollections; }
}
/// <summary>
/// 所有文件在服务器上生成的文件名,只读属性
/// </summary>
public string FileNames
{
get
{
return allFile;
}
}
/// <summary>
/// 文件数量,只读属性
/// </summary>
public int FileCount
{
get { return fileCount; }
}
#endregion
public UpLoad()
{
allowExts = "jpg|png|gif";
rootPath = "uploadfiles/";
maxFileSize = 200;
allFile = "";
fileErr = "";
fileCount = 0;
}
/// <summary>
/// 保存文件到硬盘
/// </summary>
public void Save()
{
string FilePath = "";
FileStream fileStream;
foreach (MyFileInfo mfi in fileCollections)
{
try
{
FilePath = HttpContext.Current.Server.MapPath(rootPath + mfi.FileName);//获取文件的物理路径
fileStream = new FileStream(FilePath, FileMode.OpenOrCreate);
fileStream.Write(mfi.FileData, 0, mfi.FileData.Length);
fileStream.Flush();
fileStream.Close();
}
catch
{
fileErr += mfi.SFileName+"保存失败!\n";
}
}
}
/// <summary>
/// 以时间和文件第几个为文件重新命名
/// </summary>
/// <param name="Ext">扩展名</param>
/// <param name="fileCount">第几个文件,防止服务器处理速度快,一个时间内能处理几个文件,那么用时间生成的文件名有可能被覆盖。</param>
/// <returns>新文件名</returns>
private string getFileName(string Ext, int fileCount)
{
return DateTime.Now.ToString().Replace(":", "").Replace(" ", "").Replace("-", "") + fileCount.ToString() + "." + Ext;
}
/// <summary>
/// 获取表单数据项目
/// </summary>
public void CollectFormDatas()
{
string sfilename = "", fileExt = "",FileName="";
string Key = "";//表单键名称
int DataSize, headstart, headend;
formSize = HttpContext.Current.Request.TotalBytes;
if (formSize < 1)
{
ErrHandle("没有选择上传的文件!");
}
FormData = new byte[formSize];
binReader = new BinaryReader(HttpContext.Current.Request.InputStream);
binReader.Read(FormData, 0, formSize);
SplitStrLen = InStrB(0, FormData, CLStr);
SplitStr = new byte[SplitStrLen];
binReader.BaseStream.Position = 0;//设置流位置
binReader.Read(SplitStr, 0, SplitStrLen);//获取2进制分隔符号
headstart = SplitStrLen + 2;//第一个集合的描述信息位置
do
{
headend = InStrB(headstart, FormData, new byte[] { CLStr[0], CLStr[1], CLStr[0], CLStr[1] });//两对回车换行符
DataSize = InStrB(headend + 4, FormData, SplitStr) - (headend + 4)-2;
fileExt = getExt(headstart, headend - headstart , ref sfilename, ref Key);
if (fileExt == null)//表单集合
{
formCollections.Add(Key, ReadData(headend+4, DataSize));
}
else if (fileExt != "")//文件
{
if (!checkFileSize(DataSize))
fileErr = fileErr + sfilename + "上传失败,文件大小超过" + maxFileSize + "KB!\n";
else if (!checkExt(fileExt))
fileErr = fileErr + sfilename + "上传失败,文件类型 " + fileExt + " 不允许上传!\n";
else
{
fileCount = fileCount + 1;//累计文件个数
FileName = getFileName(fileExt, fileCount);
ReadData(headend+4, DataSize, Key,FileName,sfilename);
}
}
//计算下项开始位置
headstart = (headend+4) + DataSize +2+ (SplitStrLen + 2);
} while (headstart + 2 < formSize);
binReader.Close(); //关闭流
}
/// <summary>
/// 错误处理
/// </summary>
/// <param name="ErrMsg">发生的错误</param>
private void ErrHandle(string ErrMsg)
{
ErrMsg = ErrMsg.Replace("'", "\'");//防止脚本符号的嵌套出错
HttpContext.Current.Response.Write("<script>alert('" + ErrMsg + "');history.back();</" + "script>");
HttpContext.Current.Response.End();
}
/// <summary>
/// 获取文件的扩展名称
/// </summary>
/// <param name="start">就是filename="的位置</param>
/// <param name="end">客户端的文件物理路径的末尾位置</param>
/// <param name="filename">客户端的文件名称,注意变量是引用了地址,而不是值</param>
/// <param name="desInfo">描述信息</param>
/// <param name="Key">键名称</param>
/// <returns>文件的扩展名称,不带.</returns>
private string getExt(int start, int DataSize, ref string filename, ref string Key)
{
string fileExt = null, desInfo = "";
byte[] desBytes = new byte[DataSize];
desBytes = ReadBytes(start, DataSize);
desInfo = Encoding.UTF8.GetString(desBytes);
desInfo = desInfo.Substring(desInfo.IndexOf("name=\"") + 6);
Key = desInfo.Substring(0, desInfo.IndexOf("\""));
int fnStart = desInfo.IndexOf("filename=\"");
if (fnStart != -1)
{
filename = desInfo.Substring(fnStart + 10);
if (filename.IndexOf("\"") != 0)//有可能未上传文件
{
filename = filename.Substring(0,filename.IndexOf("\""));
fileExt = Path.GetExtension(filename).ToLower().Substring(1);
}
else
fileExt = "";
}
return fileExt;
}
/// <summary>
/// 验证单个文件大小
/// </summary>
/// <param name="datasize">文件大小</param>
/// <returns>是否合格</returns>
private bool checkFileSize(int datasize)
{
if (datasize > maxFileSize * 1024)
return false;
else
return true;
}
/// <summary>
/// 验证扩展名是否允许
/// </summary>
/// <param name="fileExt">扩展名</param>
/// <returns>是否合格</returns>
private bool checkExt(string fileExt)
{
string[] exts = allowExts.Split('|');
foreach (string ext in exts)
{
if (ext == fileExt)
return true;
}
return false;
}
/// <summary>
/// 获取流中的字节数组
/// </summary>
/// <param name="DataStart">流开始处</param>
/// <param name="DataSize">数组大小</param>
/// <returns>字节数组</returns>
private byte[] ReadBytes(int DataStart, int DataSize)
{
byte[] ReturnBytes = new byte[DataSize];
binReader.BaseStream.Position = DataStart;
binReader.Read(ReturnBytes, 0, DataSize);
return ReturnBytes;
}
/// <summary>
/// 读取bytes数组数据
/// </summary>
/// <param name="DataStart">开始位置</param>
/// <param name="DataSize">大小</param>
private string ReadData(int DataStart, int DataSize)
{
if (DataSize < 1)
return "";
else
{
byte[] bytesData = new byte[DataSize];
bytesData = ReadBytes(DataStart, DataSize);
string Str = Encoding.UTF8.GetString(bytesData);
if (Str == "\r\n")
return "";
else
return Str;
}
}
/// <summary>
/// 读取bytes数组数据
/// </summary>
/// <param name="DataStart">开始位置</param>
/// <param name="DataSize">大小</param>
/// <param name="Key">键名称</param>
/// <param name="FileName">服务器的文件名</param>
/// <param name="sFileName">客户端的文件名</param>
private void ReadData(int DataStart, int DataSize, string Key,string FileName,string sFileName)
{
MyFileInfo myFileInfo = new MyFileInfo();
myFileInfo.FileData = ReadBytes(DataStart, DataSize);
myFileInfo.FileName = FileName;
myFileInfo.SFileName = sFileName;
fileCollections.Add(Key, myFileInfo);
allFile += FileName + ",";
}
/// <summary>
/// 搜索给定2进制数在数组中的位置
/// </summary>
/// <param name="startPosition">要搜索开始的位置,默认为0</param>
/// <param name="b">要搜索的2进制数组</param>
/// <param name="sb">搜索的2进制数数组</param>
/// <returns>所在位置,找不到默认为-1</returns>
private int InStrB(int startPosition, byte[] b, byte[] sb)
{
int blen = b.Length;
if (startPosition >= blen)
return -1;
int sblen = sb.Length;
int postion = -1;
if (sblen == 0)
return -1;
for (int i = startPosition; i < blen; i++)
{
if (b == sb[0])
{
int TempI = i + 1;
bool Find = true; ;
for (int j = 1; j < sblen && TempI < blen; j++, TempI++)
{
if (b[TempI] == sb[j])
continue;
else
{
Find = false;
break;
}
}
if (Find)
{
postion = i;
break;
}
}
}
return postion;
}
}
}
Asp.Net无组件上传(1.0.0.0)。
.net Framework2.0+IIS6.0 调试通过。不可用于商业用途,只共交流使用.
--Edit By ShowBo于2007.10.19 10:00
*/
namespace ShowBo.AspNetUpLoad
{
using System;
using System.IO;
using System.Web;
using System.Text;
using System.Collections;
/// <summary>
/// 文件结构
/// </summary>
public struct MyFileInfo
{
public string FileName;//服务器端的文件名
public string SFileName;//客户端的文件名
public byte[] FileData;//文件的2进制数据
}
/// <summary>
/// 表单项收集
/// </summary>
public class FormCollection : DictionaryBase
{
/// <summary>
/// 添加项目
/// </summary>
/// <param name="Key">键</param>
/// <param name="Value">值</param>
public void Add(string Key, string Value)
{
Dictionary.Add(Key, Value);
}
/// <summary>
/// 获取或设置对应的键值
/// </summary>
/// <param name="Key">键</param>
/// <returns>值</returns>
public string this[string Key]
{
get { return (string)Dictionary[Key]; }
set { Dictionary[Key] = value; }
}
/// <summary>
/// 重写叠代借口返回,返回string类型
/// </summary>
/// <returns>IEnumerator叠代接口</returns>
public new IEnumerator GetEnumerator()
{
foreach (DictionaryEntry de in Dictionary)
{
yield return (string)de.Value;
}
}
/// <summary>
/// 删除键值
/// </summary>
/// <param name="Key">要删除的键值</param>
public void Remove(string Key)
{
Dictionary.Remove(Key);
}
}
/// <summary>
/// 上传文件收集,信息为2进制
/// </summary>
public class FileCollection : DictionaryBase
{
public void Add(string Key, MyFileInfo fileInfo)
{
Dictionary.Add(Key, fileInfo);
}
public void Remove(string Key)
{
Dictionary.Remove(Key);
}
/// <summary>
/// 重写迭代接口接口
/// </summary>
/// <returns>返回文件的MyFileInfo结构体</returns>
public new IEnumerator GetEnumerator()
{
foreach (DictionaryEntry de in Dictionary)
{
yield return (MyFileInfo)de.Value;
}
}
public MyFileInfo this[string Key]
{
get { return (MyFileInfo)Dictionary[Key]; }
set { Dictionary[Key] = value; }
}
}
/// <summary>
/// 文件上传类
/// </summary>
public class UpLoad
{
#region 变量申明
private byte[] FormData; //表单的2进制数据数组
private int formSize;//总上传字节数
private string allowExts;//默认的可以上传的文件扩展名称
private string rootPath;//文件保存的目录
private string fileErr;//文件错误信息,例如文件大小超过,扩展名不允许
private string allFile;//保存所有成功上传的文件名称
private int maxFileSize;//默认上传大小为200kb
private int fileCount;//总的上传的文件个数
private byte[] SplitStr;//2进制分隔符号
private int SplitStrLen;//分隔符号长度
byte[] CLStr = new byte[] { 13, 10 };//2进制回车
private FileCollection fileCollections = new FileCollection();//文件信息集合
private FormCollection formCollections = new FormCollection();//表单信息集合
private BinaryReader binReader;//2进制读取器
#endregion
#region 属性
/// <summary>
/// 默认的可以上传的文件扩展名称
/// </summary>
public string AllowExts
{
get { return allowExts; }
set { allowExts = value; }
}
/// <summary>
/// 文件保存的目录
/// </summary>
public string RootPath
{
get { return rootPath; }
set
{
string tempPath = value;
if (tempPath.LastIndexOf("/") == -1)
rootPath = tempPath + "/";
else
rootPath = tempPath;
}
}
/// <summary>
/// 错误信息,只读属性
/// </summary>
public string ErrorStr
{
get
{
if (fileErr != "")
fileErr = "发生如下错误\n" + fileErr;
return fileErr;
}
}
/// <summary>
/// 文件信息集合,2进制流形式缓存数据,只读属性
/// </summary>
public FileCollection FileCollections
{
get { return fileCollections; }
}
/// <summary>
/// 表单信息集合,只读属性
/// </summary>
public FormCollection FormCollections
{
get { return formCollections; }
}
/// <summary>
/// 所有文件在服务器上生成的文件名,只读属性
/// </summary>
public string FileNames
{
get
{
return allFile;
}
}
/// <summary>
/// 文件数量,只读属性
/// </summary>
public int FileCount
{
get { return fileCount; }
}
#endregion
public UpLoad()
{
allowExts = "jpg|png|gif";
rootPath = "uploadfiles/";
maxFileSize = 200;
allFile = "";
fileErr = "";
fileCount = 0;
}
/// <summary>
/// 保存文件到硬盘
/// </summary>
public void Save()
{
string FilePath = "";
FileStream fileStream;
foreach (MyFileInfo mfi in fileCollections)
{
try
{
FilePath = HttpContext.Current.Server.MapPath(rootPath + mfi.FileName);//获取文件的物理路径
fileStream = new FileStream(FilePath, FileMode.OpenOrCreate);
fileStream.Write(mfi.FileData, 0, mfi.FileData.Length);
fileStream.Flush();
fileStream.Close();
}
catch
{
fileErr += mfi.SFileName+"保存失败!\n";
}
}
}
/// <summary>
/// 以时间和文件第几个为文件重新命名
/// </summary>
/// <param name="Ext">扩展名</param>
/// <param name="fileCount">第几个文件,防止服务器处理速度快,一个时间内能处理几个文件,那么用时间生成的文件名有可能被覆盖。</param>
/// <returns>新文件名</returns>
private string getFileName(string Ext, int fileCount)
{
return DateTime.Now.ToString().Replace(":", "").Replace(" ", "").Replace("-", "") + fileCount.ToString() + "." + Ext;
}
/// <summary>
/// 获取表单数据项目
/// </summary>
public void CollectFormDatas()
{
string sfilename = "", fileExt = "",FileName="";
string Key = "";//表单键名称
int DataSize, headstart, headend;
formSize = HttpContext.Current.Request.TotalBytes;
if (formSize < 1)
{
ErrHandle("没有选择上传的文件!");
}
FormData = new byte[formSize];
binReader = new BinaryReader(HttpContext.Current.Request.InputStream);
binReader.Read(FormData, 0, formSize);
SplitStrLen = InStrB(0, FormData, CLStr);
SplitStr = new byte[SplitStrLen];
binReader.BaseStream.Position = 0;//设置流位置
binReader.Read(SplitStr, 0, SplitStrLen);//获取2进制分隔符号
headstart = SplitStrLen + 2;//第一个集合的描述信息位置
do
{
headend = InStrB(headstart, FormData, new byte[] { CLStr[0], CLStr[1], CLStr[0], CLStr[1] });//两对回车换行符
DataSize = InStrB(headend + 4, FormData, SplitStr) - (headend + 4)-2;
fileExt = getExt(headstart, headend - headstart , ref sfilename, ref Key);
if (fileExt == null)//表单集合
{
formCollections.Add(Key, ReadData(headend+4, DataSize));
}
else if (fileExt != "")//文件
{
if (!checkFileSize(DataSize))
fileErr = fileErr + sfilename + "上传失败,文件大小超过" + maxFileSize + "KB!\n";
else if (!checkExt(fileExt))
fileErr = fileErr + sfilename + "上传失败,文件类型 " + fileExt + " 不允许上传!\n";
else
{
fileCount = fileCount + 1;//累计文件个数
FileName = getFileName(fileExt, fileCount);
ReadData(headend+4, DataSize, Key,FileName,sfilename);
}
}
//计算下项开始位置
headstart = (headend+4) + DataSize +2+ (SplitStrLen + 2);
} while (headstart + 2 < formSize);
binReader.Close(); //关闭流
}
/// <summary>
/// 错误处理
/// </summary>
/// <param name="ErrMsg">发生的错误</param>
private void ErrHandle(string ErrMsg)
{
ErrMsg = ErrMsg.Replace("'", "\'");//防止脚本符号的嵌套出错
HttpContext.Current.Response.Write("<script>alert('" + ErrMsg + "');history.back();</" + "script>");
HttpContext.Current.Response.End();
}
/// <summary>
/// 获取文件的扩展名称
/// </summary>
/// <param name="start">就是filename="的位置</param>
/// <param name="end">客户端的文件物理路径的末尾位置</param>
/// <param name="filename">客户端的文件名称,注意变量是引用了地址,而不是值</param>
/// <param name="desInfo">描述信息</param>
/// <param name="Key">键名称</param>
/// <returns>文件的扩展名称,不带.</returns>
private string getExt(int start, int DataSize, ref string filename, ref string Key)
{
string fileExt = null, desInfo = "";
byte[] desBytes = new byte[DataSize];
desBytes = ReadBytes(start, DataSize);
desInfo = Encoding.UTF8.GetString(desBytes);
desInfo = desInfo.Substring(desInfo.IndexOf("name=\"") + 6);
Key = desInfo.Substring(0, desInfo.IndexOf("\""));
int fnStart = desInfo.IndexOf("filename=\"");
if (fnStart != -1)
{
filename = desInfo.Substring(fnStart + 10);
if (filename.IndexOf("\"") != 0)//有可能未上传文件
{
filename = filename.Substring(0,filename.IndexOf("\""));
fileExt = Path.GetExtension(filename).ToLower().Substring(1);
}
else
fileExt = "";
}
return fileExt;
}
/// <summary>
/// 验证单个文件大小
/// </summary>
/// <param name="datasize">文件大小</param>
/// <returns>是否合格</returns>
private bool checkFileSize(int datasize)
{
if (datasize > maxFileSize * 1024)
return false;
else
return true;
}
/// <summary>
/// 验证扩展名是否允许
/// </summary>
/// <param name="fileExt">扩展名</param>
/// <returns>是否合格</returns>
private bool checkExt(string fileExt)
{
string[] exts = allowExts.Split('|');
foreach (string ext in exts)
{
if (ext == fileExt)
return true;
}
return false;
}
/// <summary>
/// 获取流中的字节数组
/// </summary>
/// <param name="DataStart">流开始处</param>
/// <param name="DataSize">数组大小</param>
/// <returns>字节数组</returns>
private byte[] ReadBytes(int DataStart, int DataSize)
{
byte[] ReturnBytes = new byte[DataSize];
binReader.BaseStream.Position = DataStart;
binReader.Read(ReturnBytes, 0, DataSize);
return ReturnBytes;
}
/// <summary>
/// 读取bytes数组数据
/// </summary>
/// <param name="DataStart">开始位置</param>
/// <param name="DataSize">大小</param>
private string ReadData(int DataStart, int DataSize)
{
if (DataSize < 1)
return "";
else
{
byte[] bytesData = new byte[DataSize];
bytesData = ReadBytes(DataStart, DataSize);
string Str = Encoding.UTF8.GetString(bytesData);
if (Str == "\r\n")
return "";
else
return Str;
}
}
/// <summary>
/// 读取bytes数组数据
/// </summary>
/// <param name="DataStart">开始位置</param>
/// <param name="DataSize">大小</param>
/// <param name="Key">键名称</param>
/// <param name="FileName">服务器的文件名</param>
/// <param name="sFileName">客户端的文件名</param>
private void ReadData(int DataStart, int DataSize, string Key,string FileName,string sFileName)
{
MyFileInfo myFileInfo = new MyFileInfo();
myFileInfo.FileData = ReadBytes(DataStart, DataSize);
myFileInfo.FileName = FileName;
myFileInfo.SFileName = sFileName;
fileCollections.Add(Key, myFileInfo);
allFile += FileName + ",";
}
/// <summary>
/// 搜索给定2进制数在数组中的位置
/// </summary>
/// <param name="startPosition">要搜索开始的位置,默认为0</param>
/// <param name="b">要搜索的2进制数组</param>
/// <param name="sb">搜索的2进制数数组</param>
/// <returns>所在位置,找不到默认为-1</returns>
private int InStrB(int startPosition, byte[] b, byte[] sb)
{
int blen = b.Length;
if (startPosition >= blen)
return -1;
int sblen = sb.Length;
int postion = -1;
if (sblen == 0)
return -1;
for (int i = startPosition; i < blen; i++)
{
if (b == sb[0])
{
int TempI = i + 1;
bool Find = true; ;
for (int j = 1; j < sblen && TempI < blen; j++, TempI++)
{
if (b[TempI] == sb[j])
continue;
else
{
Find = false;
break;
}
}
if (Find)
{
postion = i;
break;
}
}
}
return postion;
}
}
}
测试页面
+展开
-HTML
<!!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>asp.net无组件上传</title>
<meta http-equiv="content-type" content='text/html;utf-8' />
</head>
<body>
<script type="text/javascript">
function check(f)
{
var choose=false;
//至少要选择一个文件
for(var i=0;i<10;i++)
{
if(eval("f.myfile"+i)!=undefined)
{
if(eval("f.myfile"+i).value!="")
{
choose=true;
break;
}
}
}
if(!choose)
{
alert('请选择上传的文件!');
f.myfile0.focus();
return false;
}
}
function SetFile()
{
var fc=document.getElementById('filecount');
if(fc.value=="")
{
alert('文件个数不能为空!');
fc.focus();
return ;
}
if(isNaN(fc.value))
{
alert('文件个数为整数!');
fc.select();
return;
}
var count=parseInt(fc.value);
if(count<1||count>10)
{
alert('一次上传文件个数为1-10个!');
fc.select();
return false;
}
var div=document.getElementById('divFile');
div.innerHTML="";
for(var i=0;i {
div.innerHTML+='请选择文件:<input type="file" name="myfile'+i+'" style="width:200px" /><br/>';
}
}
</script>
<form method="post" enctype='multipart/form-data' action="getfile.aspx" >
文件个数:<input type="text" size='2' name='filecount' id='filecount' />(1-10个)<input type="button" onclick='SetFile()' value="设置上传个数"/>
<div id='divFile'>请选择文件:<input type="file" name="myfile0" style="width:200px" /></div>
<input type="submit" value='开始上传' />
</form>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>asp.net无组件上传</title>
<meta http-equiv="content-type" content='text/html;utf-8' />
</head>
<body>
<script type="text/javascript">
function check(f)
{
var choose=false;
//至少要选择一个文件
for(var i=0;i<10;i++)
{
if(eval("f.myfile"+i)!=undefined)
{
if(eval("f.myfile"+i).value!="")
{
choose=true;
break;
}
}
}
if(!choose)
{
alert('请选择上传的文件!');
f.myfile0.focus();
return false;
}
}
function SetFile()
{
var fc=document.getElementById('filecount');
if(fc.value=="")
{
alert('文件个数不能为空!');
fc.focus();
return ;
}
if(isNaN(fc.value))
{
alert('文件个数为整数!');
fc.select();
return;
}
var count=parseInt(fc.value);
if(count<1||count>10)
{
alert('一次上传文件个数为1-10个!');
fc.select();
return false;
}
var div=document.getElementById('divFile');
div.innerHTML="";
for(var i=0;i {
div.innerHTML+='请选择文件:<input type="file" name="myfile'+i+'" style="width:200px" /><br/>';
}
}
</script>
<form method="post" enctype='multipart/form-data' action="getfile.aspx" >
文件个数:<input type="text" size='2' name='filecount' id='filecount' />(1-10个)<input type="button" onclick='SetFile()' value="设置上传个数"/>
<div id='divFile'>请选择文件:<input type="file" name="myfile0" style="width:200px" /></div>
<input type="submit" value='开始上传' />
</form>
</body>
</html>
接收页面
+展开
-HTML
<%@ Page Language="C#" %>
<%@ Import Namespace="ShowBo.AspNetUpLoad" %>
<script runat="server">
protected void Page_Load(object sender, EventArgs e)
{
UpLoad upload = new UpLoad();
upload.CollectFormDatas();
upload.Save();
string Err = upload.ErrorStr;
Response.Write(upload.FormCollections["filecount"]);
if (Err != "")
Response.Write(Err);
else
Response.Write("Ok");
}
</script>
<%@ Import Namespace="ShowBo.AspNetUpLoad" %>
<script runat="server">
protected void Page_Load(object sender, EventArgs e)
{
UpLoad upload = new UpLoad();
upload.CollectFormDatas();
upload.Save();
string Err = upload.ErrorStr;
Response.Write(upload.FormCollections["filecount"]);
if (Err != "")
Response.Write(Err);
else
Response.Write("Ok");
}
</script>
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