图片上传的功能简介及web.config设置(自动生成所略图)
2005-04-09 15:56
417 查看
程序代码：
功能：
1。把图片文件(JPG GIF PNG)上传，
2。保存到指定的路径（在web.config中设置路径，以文件的原有格式保存），
3。并自动生成指定宽度的（在web.config中设置宽度）
4。和指定格式的（在web.config中指定缩略图的格式，支持GIF,JPG,PNG）
5。和原图比例相同的缩略图(根据宽度和原图的宽和高计算所略图的高度)
6。可以判断是否已经存在文件
7。如果不覆盖，则给出错误
8。如果选中"覆盖原图"checkbox，则覆盖原图。
9。可以根据要求，在webform上设置1个以上的file input和相应的checkbox
10。并在文件上传完毕后，显示原图的文件名，尺寸，字节，和
11。缩略图的文件名尺寸，以及
12。显示原图和缩略图。
13。缩略图的文件名格式，以便与管理：
大图（原图）： 图片分类代号_图片代表的日期_图片原有文件名.原有格式 （如：28_2002-1-28_test.jpg）
缩略图： 图片分类代号_图片代表的日期_图片原有文件名.原有格式_thumb.指定的缩略图格式 （如：28_2002-1-28_test.jpg_thumb.gif）
----------------------
web.config文件中的相应设置：
...
...
...
...
...
...
//FePicSavePath 图片保存在服务器上的实际路径
//FePicWebPath 图片的网络路径，用于显示图片
//FePicThumbWidth 缩略图的宽度
//所略图的格式
图片上传的数据库部分(自动生成所略图)
程序代码：
public int FePicDataSet(string strPicTitle, string strPicDate, string strPicName, int intPicType, string strPicIntro, string strThumbnail, int opID)
{
//string strPicTitle,
//string strPicDate,
//string strPicName,
//int intPicType,
//string strPicIntro,
//string strPicName,
//string strThumbnail,
//int opID
SqlConnection myConnection = new SqlConnection(ConfigurationSettings.AppSettings["ConnectionString"]);
SqlCommand myCommand = new SqlCommand("mag_FePicDataSet", myConnection);
// Mark the Command as a SPROC
myCommand.CommandType = CommandType.StoredProcedure;
// Add Parameters to SPROC
SqlParameter parameterUserId = new SqlParameter("@opID", SqlDbType.Int);
parameterUserId.Value = opID;
myCommand.Parameters.Add(parameterUserId);
SqlParameter parameterPicTitle = new SqlParameter("@picTitle", SqlDbType.Char, 30);
parameterPicTitle.Value = strPicTitle;
myCommand.Parameters.Add(parameterPicTitle);
SqlParameter parameterPicDate = new SqlParameter("@picDate", SqlDbType.Char, 10);
parameterPicDate.Value = strPicDate;
myCommand.Parameters.Add(parameterPicDate);
SqlParameter parameterPicName = new SqlParameter("@picName", SqlDbType.Char, 50);
parameterPicName.Value = strPicName;
myCommand.Parameters.Add(parameterPicName);
SqlParameter parameterPicType = new SqlParameter("@picType", SqlDbType.Int);
parameterPicType.Value = intPicType;
myCommand.Parameters.Add(parameterPicType);
SqlParameter parameterPicIntro = new SqlParameter("@picIntro", SqlDbType.Char, 255);
parameterPicIntro.Value = strPicIntro;
myCommand.Parameters.Add(parameterPicIntro);
SqlParameter parameterThumbnail = new SqlParameter("@thumbnail", SqlDbType.Char, 50);
parameterThumbnail.Value = strThumbnail;
myCommand.Parameters.Add(parameterThumbnail);
SqlParameter parameterHostAddress = new SqlParameter("@opIP", SqlDbType.Char, 15);
parameterHostAddress.Value = Context.Request.UserHostAddress;
myCommand.Parameters.Add(parameterHostAddress);
//SqlParameter parameterRID = new SqlParameter("@returnID", SqlDbType.Int);
//parameterReturnUserID.Value = -1;
//parameterRID.Direction = ParameterDirection.Output;
//myCommand.Parameters.Add(parameterRID);
// Execute the command in a try/catch to catch duplicate username errors
try
{
// Open the connection and execute the Command
myConnection.Open();
myCommand.ExecuteNonQuery();
}
catch
{
// failed to create a new user
return -1;
}
finally
{
// Close the Connection
if (myConnection.State == ConnectionState.Open)
myConnection.Close();
}
return 1;
}
图片上传的Codebehind(自动生成所略图)
程序代码：
using System;
using System.Collections;
using System.ComponentModel;
using System.Configuration;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Text;
using cj168.util;
namespace cj168.Web.Mag.Admins.FeData
{
///
/// Summary description for fedata.
///
public class feUploadPic : System.Web.UI.Page
{
protected System.Web.UI.WebControls.TextBox txtboxPicTitle;
protected System.Web.UI.WebControls.Calendar calPicDate;
protected System.Web.UI.WebControls.DropDownList ddlPicType;
protected System.Web.UI.WebControls.TextBox txtboxPicIntro;
protected System.Web.UI.HtmlControls.HtmlInputFile filePicName;
protected System.Web.UI.WebControls.Button btnSubmit;
protected System.Web.UI.WebControls.Label lblPicInfo;
protected System.Web.UI.WebControls.TextBox txtboxPicDate;
protected System.Web.UI.WebControls.RequiredFieldValidator Requiredfieldvalidator1;
protected System.Web.UI.WebControls.RegularExpressionValidator vldCatName;
protected System.Web.UI.WebControls.RequiredFieldValidator Requiredfieldvalidator2;
protected System.Web.UI.WebControls.CustomValidator CustomValidator1;
protected System.Web.UI.WebControls.RegularExpressionValidator RegularExpressionValidator1;
protected System.Web.UI.WebControls.HyperLink hlkOriPic;
protected System.Web.UI.WebControls.HyperLink hlkNewPic;
protected System.Web.UI.WebControls.RegularExpressionValidator Regularexpressionvalidator2;
protected System.Web.UI.WebControls.RegularExpressionValidator Regularexpressionvalidator3;
protected System.Web.UI.WebControls.CheckBoxList checkboxlistRewrite;
private void Page_Load(object sender, System.EventArgs e)
{
// Put user code to initialize the page here
//if(Page.IsPostBack)
//txtboxPicDate.Text = calPicDate.SelectedDate.ToString();
if(!Page.IsPostBack)
{
Bind2DropDownListPicType();
//for(int i = 0;i < Request.Files.Count; i++)
//{
// checkboxlistRewrite.Items.Selected = false;
//}
}
}
public void Bind2DropDownListPicType()
{
cj168.DataAccess.Admins admins = new cj168.DataAccess.Admins();
DataSet ds = admins.FePicTypeGet();
//ddlPicType.DataSource = ;
DataView dv = new DataView(ds.Tables["PicType"]);
DataRowView drv = dv.AddNew();
//DataColumnView dcv = dv.AddNew();
drv["Title"] = "请选择";
drv["fePicTypeID"] = "0";
drv.EndEdit();
dv.Sort = "fePicTypeID";
ddlPicType.DataSource = dv;
ddlPicType.DataBind();
}
public void UploadFile(object sender, System.EventArgs e)
{
string imgNameOnly, imgNameNoExt, imgExt;
string imgThumbnail;
int erroNumber = 0;
System.Drawing.Image oriImg, newImg;
string strFePicSavePath = ConfigurationSettings.AppSettings["FePicSavePath"].ToString();
string strFePicThumbFormat = ConfigurationSettings.AppSettings["FePicThumbFormat"].ToString().ToLower();
int intFeThumbWidth = Int32.Parse(ConfigurationSettings.AppSettings["FePicThumbWidth"]);
string fileExt;
string strPicTitle = txtboxPicTitle.Text;
string strPicIntro = txtboxPicIntro.Text;
string strPicDate = txtboxPicDate.Text;
int intPicType = Int32.Parse(ddlPicType.SelectedItem.Value);
string strPicType = intPicType.ToString() + "_" + DateTime.Now.Date.ToShortDateString() + "_";
string strFePicWebPath = ConfigurationSettings.AppSettings["FePicWebPath"];
cj168.DataAccess.Admins admins = new cj168.DataAccess.Admins();
//if(admins.FePicTypeSet(textboxTitle.Text,0) < 0)
// lblAddPicInfo.Text = "操作失败：已经存在相同名称类型，请修改";
//else
// lblAddPicInfo.Text = "操作成功";
StringBuilder picInfo = new StringBuilder();
if(Page.IsValid)
{
for(int i = 0;i < Request.Files.Count; i++)
{
HttpPostedFile PostedFile = Request.Files;
fileExt = (System.IO.Path.GetExtension(PostedFile.FileName)).ToString().ToLower();
//5-test.jpg
imgNameOnly = strPicType + System.IO.Path.GetFileName(PostedFile.FileName);
if(fileExt == ".jpg" || fileExt == ".gif" || fileExt == ".png")
{
if(System.IO.File.Exists(strFePicSavePath + imgNameOnly) && (checkboxlistRewrite.Items.Selected == false))
{
erroNumber = erroNumber + 1;
picInfo.Append("错误：文件("+ (i+1) +") " + imgNameOnly + " 已经存在，请修改文件名
" );
}
}
else
{
erroNumber = erroNumber + 1;
if(fileExt == "")
picInfo.Append("错误：请选择文件
" );
else
picInfo.Append("错误：文件("+ (i+1) +") " + imgNameOnly + " 扩展名 " + fileExt + " 不被许可
" );
}
}
if(erroNumber > 0)
{
picInfo.Append("全部操作均未完成，请修改错误，再进行操作
");
hlkOriPic.ImageUrl = "";
hlkOriPic.ToolTip = "";
hlkNewPic.ImageUrl = "";
hlkNewPic.ToolTip = "";
}
else
{
for(int i = 0;i < Request.Files.Count; i++)
{
HttpPostedFile PostedFile = Request.Files;
imgNameOnly = strPicType + System.IO.Path.GetFileName(PostedFile.FileName);
imgNameNoExt = System.IO.Path.GetFileNameWithoutExtension(PostedFile.FileName);
imgExt = System.IO.Path.GetExtension(PostedFile.FileName).ToString().ToLower();
oriImg = System.Drawing.Image.FromStream(PostedFile.InputStream);
newImg = oriImg.GetThumbnailImage(intFeThumbWidth, intFeThumbWidth * oriImg.Height/oriImg.Width,null,new System.IntPtr(0));
switch(imgExt)
{
//case ".jpeg":
case ".jpg":
oriImg.Save(strFePicSavePath + imgNameOnly , System.Drawing.Imaging.ImageFormat.Jpeg);
break;
case ".gif":
oriImg.Save(strFePicSavePath + imgNameOnly , System.Drawing.Imaging.ImageFormat.Gif);
break;
case ".png":
oriImg.Save(strFePicSavePath + imgNameOnly , System.Drawing.Imaging.ImageFormat.Png);
break;
}
//oriImg.Save(ConfigurationSettings.AppSettings["FePicSavePath"] + imgNameNoExt + ".jpg", System.Drawing.Imaging.ImageFormat.Jpeg);
switch(strFePicThumbFormat)
{
//jpeg format can get the smallest file size, and the png is the largest size
//case "jpeg":
case "jpg":
newImg.Save(strFePicSavePath + imgNameOnly + "_thumb.jpg",System.Drawing.Imaging.ImageFormat.Jpeg);
imgThumbnail = imgNameOnly + "_thumb.jpg";
break;
case "gif":
newImg.Save(strFePicSavePath + imgNameOnly + "_thumb.gif",System.Drawing.Imaging.ImageFormat.Gif);
imgThumbnail = imgNameOnly + "_thumb.gif";
break;
case "png":
newImg.Save(strFePicSavePath + imgNameOnly + "_thumb.png",System.Drawing.Imaging.ImageFormat.Png);
imgThumbnail = imgNameOnly + "_thumb.png";
break;
default:
newImg.Save(strFePicSavePath + imgNameOnly + "_thumb.jpg",System.Drawing.Imaging.ImageFormat.Jpeg);
imgThumbnail = imgNameOnly + "_thumb.jpg";
break;
}//switch
picInfo.Append("文件 名：" + imgNameOnly + " ( " + oriImg.Width + " x " + oriImg.Height + " ) " + PostedFile.ContentLength/1024 + "KB
");
picInfo.Append("缩略图名：" + imgThumbnail + " ( " + newImg.Width + " x " + newImg.Height + " )
");
hlkOriPic.ImageUrl = strFePicWebPath + imgNameOnly;
hlkOriPic.ToolTip = "◆原图◆n文件名：" + imgNameOnly + "n尺寸：" + oriImg.Width + " x " + oriImg.Height + "n字节：" + PostedFile.ContentLength/1024 + "KB";
hlkNewPic.ImageUrl = strFePicWebPath + imgThumbnail;
hlkNewPic.ToolTip = "◆缩略图◆n文件名：" + imgThumbnail + "n尺寸：" + newImg.Width + " x " + newImg.Height;
oriImg.Dispose();
newImg.Dispose();
picInfo.Append("图片上传成功
");
if(admins.FePicDataSet(strPicTitle, strPicDate, imgNameOnly, intPicType, strPicIntro, imgThumbnail,0) < 0)
picInfo.Append("保存信息到数据库失败
");
else
picInfo.Append("保存信息到数据库成功
");
}//for
picInfo.Append("所有操作成功
");
}// if erronumber = 0
}
else
{
picInfo.Append("有错误，请检查。操作未成功
");
hlkOriPic.ImageUrl = "";
hlkOriPic.ToolTip = "";
hlkNewPic.ImageUrl = "";
hlkNewPic.ToolTip = "";
}
for(int i = 0;i < Request.Files.Count; i++)
{
checkboxlistRewrite.Items.Selected = false;
}
lblPicInfo.Text = picInfo.ToString();
}
public void CalDateSelected(object sender,System.EventArgs e)
{
txtboxPicDate.Text = calPicDate.SelectedDate.ToShortDateString();
}
public void ServerValidateCheckDate(object sender, System.Web.UI.WebControls.ServerValidateEventArgs value)
{
cj168.util.iUtil iUtils = new cj168.util.iUtil();
if(!iUtils.IsDate(value.Value))
value.IsValid = false;
else
value.IsValid = true;
}
#region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: This call is required by the ASP.NET Web Form Designer.
//
InitializeComponent();
base.OnInit(e);
}
///
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
///
private void InitializeComponent()
{
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
}
}
图片上传的WebForm(自动生成所略图)
程序代码：
<%@ Page language="c#" Codebehind="feUploadPic.aspx.cs" AutoEventWireup="false" Inherits="cj168.Web.Mag.Admins.FeData.feUploadPic" %>
<%@ Register TagPrefix="cj168" TagName="Header" Src="modules/headerFe.ascx" %>
fedata
BODY { FONT-SIZE: 9pt }
.calPicDate { FONT-SIZE: 9pt; FONT-FAMILY: Verdana, Helvetica, sans-serif }
.valid { FONT-SIZE: 9pt; COLOR: red }
TD { FONT-SIZE: 9pt }
原图
缩略图
功能：
1。把图片文件(JPG GIF PNG)上传，
2。保存到指定的路径（在web.config中设置路径，以文件的原有格式保存），
3。并自动生成指定宽度的（在web.config中设置宽度）
4。和指定格式的（在web.config中指定缩略图的格式，支持GIF,JPG,PNG）
5。和原图比例相同的缩略图(根据宽度和原图的宽和高计算所略图的高度)
6。可以判断是否已经存在文件
7。如果不覆盖，则给出错误
8。如果选中"覆盖原图"checkbox，则覆盖原图。
9。可以根据要求，在webform上设置1个以上的file input和相应的checkbox
10。并在文件上传完毕后，显示原图的文件名，尺寸，字节，和
11。缩略图的文件名尺寸，以及
12。显示原图和缩略图。
13。缩略图的文件名格式，以便与管理：
大图（原图）： 图片分类代号_图片代表的日期_图片原有文件名.原有格式 （如：28_2002-1-28_test.jpg）
缩略图： 图片分类代号_图片代表的日期_图片原有文件名.原有格式_thumb.指定的缩略图格式 （如：28_2002-1-28_test.jpg_thumb.gif）
----------------------
web.config文件中的相应设置：
...
...
...
...
...
...
//FePicSavePath 图片保存在服务器上的实际路径
//FePicWebPath 图片的网络路径，用于显示图片
//FePicThumbWidth 缩略图的宽度
//所略图的格式
图片上传的数据库部分(自动生成所略图)
程序代码：
public int FePicDataSet(string strPicTitle, string strPicDate, string strPicName, int intPicType, string strPicIntro, string strThumbnail, int opID)
{
//string strPicTitle,
//string strPicDate,
//string strPicName,
//int intPicType,
//string strPicIntro,
//string strPicName,
//string strThumbnail,
//int opID
SqlConnection myConnection = new SqlConnection(ConfigurationSettings.AppSettings["ConnectionString"]);
SqlCommand myCommand = new SqlCommand("mag_FePicDataSet", myConnection);
// Mark the Command as a SPROC
myCommand.CommandType = CommandType.StoredProcedure;
// Add Parameters to SPROC
SqlParameter parameterUserId = new SqlParameter("@opID", SqlDbType.Int);
parameterUserId.Value = opID;
myCommand.Parameters.Add(parameterUserId);
SqlParameter parameterPicTitle = new SqlParameter("@picTitle", SqlDbType.Char, 30);
parameterPicTitle.Value = strPicTitle;
myCommand.Parameters.Add(parameterPicTitle);
SqlParameter parameterPicDate = new SqlParameter("@picDate", SqlDbType.Char, 10);
parameterPicDate.Value = strPicDate;
myCommand.Parameters.Add(parameterPicDate);
SqlParameter parameterPicName = new SqlParameter("@picName", SqlDbType.Char, 50);
parameterPicName.Value = strPicName;
myCommand.Parameters.Add(parameterPicName);
SqlParameter parameterPicType = new SqlParameter("@picType", SqlDbType.Int);
parameterPicType.Value = intPicType;
myCommand.Parameters.Add(parameterPicType);
SqlParameter parameterPicIntro = new SqlParameter("@picIntro", SqlDbType.Char, 255);
parameterPicIntro.Value = strPicIntro;
myCommand.Parameters.Add(parameterPicIntro);
SqlParameter parameterThumbnail = new SqlParameter("@thumbnail", SqlDbType.Char, 50);
parameterThumbnail.Value = strThumbnail;
myCommand.Parameters.Add(parameterThumbnail);
SqlParameter parameterHostAddress = new SqlParameter("@opIP", SqlDbType.Char, 15);
parameterHostAddress.Value = Context.Request.UserHostAddress;
myCommand.Parameters.Add(parameterHostAddress);
//SqlParameter parameterRID = new SqlParameter("@returnID", SqlDbType.Int);
//parameterReturnUserID.Value = -1;
//parameterRID.Direction = ParameterDirection.Output;
//myCommand.Parameters.Add(parameterRID);
// Execute the command in a try/catch to catch duplicate username errors
try
{
// Open the connection and execute the Command
myConnection.Open();
myCommand.ExecuteNonQuery();
}
catch
{
// failed to create a new user
return -1;
}
finally
{
// Close the Connection
if (myConnection.State == ConnectionState.Open)
myConnection.Close();
}
return 1;
}
图片上传的Codebehind(自动生成所略图)
程序代码：
using System;
using System.Collections;
using System.ComponentModel;
using System.Configuration;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Text;
using cj168.util;
namespace cj168.Web.Mag.Admins.FeData
{
///
/// Summary description for fedata.
///
public class feUploadPic : System.Web.UI.Page
{
protected System.Web.UI.WebControls.TextBox txtboxPicTitle;
protected System.Web.UI.WebControls.Calendar calPicDate;
protected System.Web.UI.WebControls.DropDownList ddlPicType;
protected System.Web.UI.WebControls.TextBox txtboxPicIntro;
protected System.Web.UI.HtmlControls.HtmlInputFile filePicName;
protected System.Web.UI.WebControls.Button btnSubmit;
protected System.Web.UI.WebControls.Label lblPicInfo;
protected System.Web.UI.WebControls.TextBox txtboxPicDate;
protected System.Web.UI.WebControls.RequiredFieldValidator Requiredfieldvalidator1;
protected System.Web.UI.WebControls.RegularExpressionValidator vldCatName;
protected System.Web.UI.WebControls.RequiredFieldValidator Requiredfieldvalidator2;
protected System.Web.UI.WebControls.CustomValidator CustomValidator1;
protected System.Web.UI.WebControls.RegularExpressionValidator RegularExpressionValidator1;
protected System.Web.UI.WebControls.HyperLink hlkOriPic;
protected System.Web.UI.WebControls.HyperLink hlkNewPic;
protected System.Web.UI.WebControls.RegularExpressionValidator Regularexpressionvalidator2;
protected System.Web.UI.WebControls.RegularExpressionValidator Regularexpressionvalidator3;
protected System.Web.UI.WebControls.CheckBoxList checkboxlistRewrite;
private void Page_Load(object sender, System.EventArgs e)
{
// Put user code to initialize the page here
//if(Page.IsPostBack)
//txtboxPicDate.Text = calPicDate.SelectedDate.ToString();
if(!Page.IsPostBack)
{
Bind2DropDownListPicType();
//for(int i = 0;i < Request.Files.Count; i++)
//{
// checkboxlistRewrite.Items.Selected = false;
//}
}
}
public void Bind2DropDownListPicType()
{
cj168.DataAccess.Admins admins = new cj168.DataAccess.Admins();
DataSet ds = admins.FePicTypeGet();
//ddlPicType.DataSource = ;
DataView dv = new DataView(ds.Tables["PicType"]);
DataRowView drv = dv.AddNew();
//DataColumnView dcv = dv.AddNew();
drv["Title"] = "请选择";
drv["fePicTypeID"] = "0";
drv.EndEdit();
dv.Sort = "fePicTypeID";
ddlPicType.DataSource = dv;
ddlPicType.DataBind();
}
public void UploadFile(object sender, System.EventArgs e)
{
string imgNameOnly, imgNameNoExt, imgExt;
string imgThumbnail;
int erroNumber = 0;
System.Drawing.Image oriImg, newImg;
string strFePicSavePath = ConfigurationSettings.AppSettings["FePicSavePath"].ToString();
string strFePicThumbFormat = ConfigurationSettings.AppSettings["FePicThumbFormat"].ToString().ToLower();
int intFeThumbWidth = Int32.Parse(ConfigurationSettings.AppSettings["FePicThumbWidth"]);
string fileExt;
string strPicTitle = txtboxPicTitle.Text;
string strPicIntro = txtboxPicIntro.Text;
string strPicDate = txtboxPicDate.Text;
int intPicType = Int32.Parse(ddlPicType.SelectedItem.Value);
string strPicType = intPicType.ToString() + "_" + DateTime.Now.Date.ToShortDateString() + "_";
string strFePicWebPath = ConfigurationSettings.AppSettings["FePicWebPath"];
cj168.DataAccess.Admins admins = new cj168.DataAccess.Admins();
//if(admins.FePicTypeSet(textboxTitle.Text,0) < 0)
// lblAddPicInfo.Text = "操作失败：已经存在相同名称类型，请修改";
//else
// lblAddPicInfo.Text = "操作成功";
StringBuilder picInfo = new StringBuilder();
if(Page.IsValid)
{
for(int i = 0;i < Request.Files.Count; i++)
{
HttpPostedFile PostedFile = Request.Files;
fileExt = (System.IO.Path.GetExtension(PostedFile.FileName)).ToString().ToLower();
//5-test.jpg
imgNameOnly = strPicType + System.IO.Path.GetFileName(PostedFile.FileName);
if(fileExt == ".jpg" || fileExt == ".gif" || fileExt == ".png")
{
if(System.IO.File.Exists(strFePicSavePath + imgNameOnly) && (checkboxlistRewrite.Items.Selected == false))
{
erroNumber = erroNumber + 1;
picInfo.Append("错误：文件("+ (i+1) +") " + imgNameOnly + " 已经存在，请修改文件名
" );
}
}
else
{
erroNumber = erroNumber + 1;
if(fileExt == "")
picInfo.Append("错误：请选择文件
" );
else
picInfo.Append("错误：文件("+ (i+1) +") " + imgNameOnly + " 扩展名 " + fileExt + " 不被许可
" );
}
}
if(erroNumber > 0)
{
picInfo.Append("全部操作均未完成，请修改错误，再进行操作
");
hlkOriPic.ImageUrl = "";
hlkOriPic.ToolTip = "";
hlkNewPic.ImageUrl = "";
hlkNewPic.ToolTip = "";
}
else
{
for(int i = 0;i < Request.Files.Count; i++)
{
HttpPostedFile PostedFile = Request.Files;
imgNameOnly = strPicType + System.IO.Path.GetFileName(PostedFile.FileName);
imgNameNoExt = System.IO.Path.GetFileNameWithoutExtension(PostedFile.FileName);
imgExt = System.IO.Path.GetExtension(PostedFile.FileName).ToString().ToLower();
oriImg = System.Drawing.Image.FromStream(PostedFile.InputStream);
newImg = oriImg.GetThumbnailImage(intFeThumbWidth, intFeThumbWidth * oriImg.Height/oriImg.Width,null,new System.IntPtr(0));
switch(imgExt)
{
//case ".jpeg":
case ".jpg":
oriImg.Save(strFePicSavePath + imgNameOnly , System.Drawing.Imaging.ImageFormat.Jpeg);
break;
case ".gif":
oriImg.Save(strFePicSavePath + imgNameOnly , System.Drawing.Imaging.ImageFormat.Gif);
break;
case ".png":
oriImg.Save(strFePicSavePath + imgNameOnly , System.Drawing.Imaging.ImageFormat.Png);
break;
}
//oriImg.Save(ConfigurationSettings.AppSettings["FePicSavePath"] + imgNameNoExt + ".jpg", System.Drawing.Imaging.ImageFormat.Jpeg);
switch(strFePicThumbFormat)
{
//jpeg format can get the smallest file size, and the png is the largest size
//case "jpeg":
case "jpg":
newImg.Save(strFePicSavePath + imgNameOnly + "_thumb.jpg",System.Drawing.Imaging.ImageFormat.Jpeg);
imgThumbnail = imgNameOnly + "_thumb.jpg";
break;
case "gif":
newImg.Save(strFePicSavePath + imgNameOnly + "_thumb.gif",System.Drawing.Imaging.ImageFormat.Gif);
imgThumbnail = imgNameOnly + "_thumb.gif";
break;
case "png":
newImg.Save(strFePicSavePath + imgNameOnly + "_thumb.png",System.Drawing.Imaging.ImageFormat.Png);
imgThumbnail = imgNameOnly + "_thumb.png";
break;
default:
newImg.Save(strFePicSavePath + imgNameOnly + "_thumb.jpg",System.Drawing.Imaging.ImageFormat.Jpeg);
imgThumbnail = imgNameOnly + "_thumb.jpg";
break;
}//switch
picInfo.Append("文件 名：" + imgNameOnly + " ( " + oriImg.Width + " x " + oriImg.Height + " ) " + PostedFile.ContentLength/1024 + "KB
");
picInfo.Append("缩略图名：" + imgThumbnail + " ( " + newImg.Width + " x " + newImg.Height + " )
");
hlkOriPic.ImageUrl = strFePicWebPath + imgNameOnly;
hlkOriPic.ToolTip = "◆原图◆n文件名：" + imgNameOnly + "n尺寸：" + oriImg.Width + " x " + oriImg.Height + "n字节：" + PostedFile.ContentLength/1024 + "KB";
hlkNewPic.ImageUrl = strFePicWebPath + imgThumbnail;
hlkNewPic.ToolTip = "◆缩略图◆n文件名：" + imgThumbnail + "n尺寸：" + newImg.Width + " x " + newImg.Height;
oriImg.Dispose();
newImg.Dispose();
picInfo.Append("图片上传成功
");
if(admins.FePicDataSet(strPicTitle, strPicDate, imgNameOnly, intPicType, strPicIntro, imgThumbnail,0) < 0)
picInfo.Append("保存信息到数据库失败
");
else
picInfo.Append("保存信息到数据库成功
");
}//for
picInfo.Append("所有操作成功
");
}// if erronumber = 0
}
else
{
picInfo.Append("有错误，请检查。操作未成功
");
hlkOriPic.ImageUrl = "";
hlkOriPic.ToolTip = "";
hlkNewPic.ImageUrl = "";
hlkNewPic.ToolTip = "";
}
for(int i = 0;i < Request.Files.Count; i++)
{
checkboxlistRewrite.Items.Selected = false;
}
lblPicInfo.Text = picInfo.ToString();
}
public void CalDateSelected(object sender,System.EventArgs e)
{
txtboxPicDate.Text = calPicDate.SelectedDate.ToShortDateString();
}
public void ServerValidateCheckDate(object sender, System.Web.UI.WebControls.ServerValidateEventArgs value)
{
cj168.util.iUtil iUtils = new cj168.util.iUtil();
if(!iUtils.IsDate(value.Value))
value.IsValid = false;
else
value.IsValid = true;
}
#region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: This call is required by the ASP.NET Web Form Designer.
//
InitializeComponent();
base.OnInit(e);
}
///
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
///
private void InitializeComponent()
{
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
}
}
图片上传的WebForm(自动生成所略图)
程序代码：
<%@ Page language="c#" Codebehind="feUploadPic.aspx.cs" AutoEventWireup="false" Inherits="cj168.Web.Mag.Admins.FeData.feUploadPic" %>
<%@ Register TagPrefix="cj168" TagName="Header" Src="modules/headerFe.ascx" %>
fedata
BODY { FONT-SIZE: 9pt }
.calPicDate { FONT-SIZE: 9pt; FONT-FAMILY: Verdana, Helvetica, sans-serif }
.valid { FONT-SIZE: 9pt; COLOR: red }
TD { FONT-SIZE: 9pt }
| 图片标题 | 《 》{ } [ ] ? 。，？ ￥" CssClass="valid" ControlToValidate="txtboxPicTitle" ValidationExpression="[^'^“^”^^!^@^#^$^%^^^&^*^(^)^<^>^《^》^?^。^，^？^￥^{^}^][^]]{2,}" Runat="server"> |
| 图片日期 | |
| 图片分类 | |
| 图片介绍 | " ControlToValidate="txtboxPicIntro" ValidationExpression="[^'^<^>]{0,}"> |
| (支持文件格式：Jpg, Gif, Png) |
| 图片名称 | 覆盖原有图片 |
| Label |
缩略图
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