首先是ASPX页面中添加file标签
<input onclick="addFile()" type="button" value="增加" /><br />
<input id="viewfile" type="file" name="File" runat="server" style="width: 300px" accept="application/pdf,application/msword,application/x-zip-compressed" />
描述：<input name="text" type="text" style="width: 150px" maxlength="20" />
还有按钮
<asp:Button CssClass="inputbutton" ID="BtnAdd" runat="server" Text="提交" OnClick="btnSave_Click" />
添加addFile()js事件
<script type="text/javascript">
var i = 1
function addFile() {
if (i < 8) {
var str = '<BR> <input type="file" name="File" runat="server" style="width: 300px" accept="application/pdf,application/msword,application/x-zip-compressed"/>描述：<input name="text" type="text" style="width: 150px" maxlength="20" />'
document.getElementById('MyFile').insertAdjacentHTML("beforeEnd", str)
}
else {
alert("您一次最多只能上传8个附件！")
}
i++
}
</script>
后台处理事件
/// <summary>
/// 保存事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void btnSave_Click(object sender, EventArgs e)
{
try
{
lblMessage.Text = "";
lblMessage.Visible = false;
System.Web.HttpFileCollection files = System.Web.HttpContext.Current.Request.Files;
System.Text.StringBuilder strmsg = new System.Text.StringBuilder("");
string[] rd = Request.Form[].Split(',');//获得图片描述的文本框字符串数组，为对应的图片的描述
int ifile;
for (ifile = ; ifile < files.Count; ifile++)
{
if (files[ifile].FileName.Length > )
{
System.Web.HttpPostedFile postedfile = files[ifile];
if (postedfile.ContentLength / > )//单个文件不能大于10240k
{
strmsg.Append(Path.GetFileName(postedfile.FileName) + "---不能大于10240k<br>");
break;
}
string fex = Path.GetExtension(postedfile.FileName).ToLower();
if (fex != ".doc" && fex != ".docx" && fex != ".zip" && fex != ".rar")
{
strmsg.Append(Path.GetFileName(postedfile.FileName) + "---格式不对，只能是doc、docx、zip、rar");
break;
}
}
}
if (strmsg.Length <= )//说明图片大小和格式都没问题
{
//以下为创建图库目录
string dirname = "excellent";
string dirpath = Server.MapPath("/appendix");
dirpath = dirpath + "\\" + dirname;
if (Directory.Exists(dirpath) == false)
{
Directory.CreateDirectory(dirpath);
}
Random ro = new Random();
int name = ;
int id = ;
Model.ExcellentWorksModel excellentWorksModel = null;
for (int i = ; i < files.Count; i++)
{
System.Web.HttpPostedFile myFile = files[i];
string FileName = "";
string FileExtention = "";
string PicPath = "";
FileName = System.IO.Path.GetFileName(myFile.FileName);
string stro = ro.Next(, ).ToString() + name.ToString();//产生一个随机数用于新命名的图片
string NewName = ConvertDateTimeInt(DateTime.Now) + stro;
if (FileName.Length > )//有文件才执行上传操作再保存到数据库
{
FileExtention = System.IO.Path.GetExtension(myFile.FileName); string ppath = dirpath + "\\" + NewName + FileExtention;
myFile.SaveAs(ppath);
string FJname = FileName;
PicPath = ppath;
} //保存图片详细
excellentWorksModel = new ExcellentWorksModel();
excellentWorksModel.AddTime = DateTime.Now;
excellentWorksModel.Path = PicPath;
excellentWorksModel.Title = FileName;
excellentWorksModel.Description = rd[i];
excellentWorksModel.Status = ;
bool res = BusinessLogic.ExcellentWorksBll.Add(excellentWorksModel); name = name + ;//用来重命名规则的变量
}
}
else
{
lblMessage.Text = strmsg.ToString();
lblMessage.Visible = true;
}
ResponseRedirect("/Reporter/UpLoadExcellentWorks.aspx");
}
catch (Exception ex)
{
WriteErrMsg("出现异常："+ex.Message);
}
} /// <summary>
/// DateTime时间格式转换为Unix时间戳格式
/// </summary>
/// <param name=”time”></param>
/// <returns></returns>
public int ConvertDateTimeInt(System.DateTime time)
{
System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(, , ));
return (int)(time - startTime).TotalSeconds;
}
附件信息保存表
/*==============================================================*/
/* Table: ExcellentWorks */
/*==============================================================*/
create table ExcellentWorks (
ID int not null,
Title nvarchar(200) null,
Description nvarchar(200) null,
Path nvarchar(200) null,
AddTime datetime null,
Status int null,
constraint PK_EXCELLENTWORKS primary key (ID)
)
go declare @CurrentUser sysname
select @CurrentUser = user_name()
execute sp_addextendedproperty 'MS_Description',
'小记者优秀作品',
'user', @CurrentUser, 'table', 'ExcellentWorks'
go declare @CurrentUser sysname
select @CurrentUser = user_name()
execute sp_addextendedproperty 'MS_Description',
'表ID',
'user', @CurrentUser, 'table', 'ExcellentWorks', 'column', 'ID'
go declare @CurrentUser sysname
select @CurrentUser = user_name()
execute sp_addextendedproperty 'MS_Description',
'附件文件名',
'user', @CurrentUser, 'table', 'ExcellentWorks', 'column', 'Title'
go declare @CurrentUser sysname
select @CurrentUser = user_name()
execute sp_addextendedproperty 'MS_Description',
'描述',
'user', @CurrentUser, 'table', 'ExcellentWorks', 'column', 'Description'
go declare @CurrentUser sysname
select @CurrentUser = user_name()
execute sp_addextendedproperty 'MS_Description',
'路径',
'user', @CurrentUser, 'table', 'ExcellentWorks', 'column', 'Path'
go declare @CurrentUser sysname
select @CurrentUser = user_name()
execute sp_addextendedproperty 'MS_Description',
'添加时间',
'user', @CurrentUser, 'table', 'ExcellentWorks', 'column', 'AddTime'
go declare @CurrentUser sysname
select @CurrentUser = user_name()
execute sp_addextendedproperty 'MS_Description',
'状态',
'user', @CurrentUser, 'table', 'ExcellentWorks', 'column', 'Status'
go
