protected void btnAdd_Click(object sender, EventArgs e)
{
if (UpImage.HasFile)
{
FileInfo file = new FileInfo(UpImage.PostedFile.FileName);
if (file.Extension.ToLower() != ".bmp" && file.Extension.ToLower() != ".jpg" && file.Extension.ToLower() != ".jpeg" && file.Extension.ToLower() != ".png" && file.Extension.ToLower() != ".gif")
{
Response.Write("<script>alert('上传的图片格式应为bmp/jpg/jpeg/png/gif格式');history.back(-1);</script>");
return;
}
string filename = UpImage.PostedFile.FileName;
filename = System.IO.Path.GetFileName(filename);
//改文件名
int index = filename.LastIndexOf(".");
string lastName = filename.Substring(index, filename.Length - index);//获得文件后缀类型
//新文件名称,以时间年月日时分秒作为文件名
string newname = "BBSSubject" + DateTime.Now.ToString("yyyyMMddhhmmss") + lastName;
double size = UpImage.PostedFile.ContentLength;
if (size >= 1024000)
{
Response.Write("<script>alert('添加失败！（图片容量请不要超过1MB）')</script>");
return;
}
// 客户端文件路径 ,取得图片的文件名
string webFilePath = Server.MapPath("/NewsImages/" + newname);
if (!File.Exists(webFilePath))
{
UpImage.SaveAs(webFilePath); // 使用 SaveAs 方法保存文件
System.Drawing.Image image = System.Drawing.Image.FromFile(webFilePath);
float a = image.Width / image.Height;
if (a > 5)
{
image.Dispose();
File.Delete(webFilePath);
Response.Write("<script>alert('高宽比例不合适');</script>");
return;
}
System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(image, 80, 80);
string path = Server.MapPath("/IndexImages/" + newname);
if (!File.Exists(path))
{
bmp.Save(path);
}
image.Dispose();
bmp.Dispose();
File.Delete(webFilePath);
}
else
{
Response.Write("<script>alert('上传失败，请重试！')</script>");
return;
}
string title = Server.HtmlEncode(txtModuleName.Text.Trim());
string describe = Server.HtmlEncode(Describe.Text.Trim());
string sqlstr = "insert into tb_Module "
+ "(ModuleName,ModuleDate,ModuleImage,ModuleDescribe)"
+ "values('" + title + "','" + DateTime.Now.ToString() + "','" + newname + "','" + describe + "')";
if (sqlBind.DataCom(sqlstr))
{
Response.Write("<script lanuage=javascript>alert('添加成功');location='ManageMudole.aspx'</script>");
}
}
}
//修改模块信息
protected void btnModify_Click(object sender, EventArgs e)
{
if (UpImage.PostedFile.ContentLength == 0)
{
string sqlstr = "update tb_Module set ModuleName='"
+ txtModTitle.Text + "',ModuleDescribe='"
+ Describe.Text + "' where ModuleID='" + Request["ModuleID"].ToString() + "'";
if (sqlBind.DataCom(sqlstr))
{
Response.Write("<script>alert('修改成功');window.location.href='ManageMudole.aspx';</script>");
}
else
{
Response.Write("<script>alert('修改失败');history.back();</script>");
}
}
else
{
FileInfo file1 = new FileInfo(UpImage.PostedFile.FileName);
if (file1.Extension != ".bmp" && file1.Extension != ".jpg" && file1.Extension != ".jpeg" && file1.Extension != ".png" && file1.Extension != ".gif")
{
Response.Write("<script>alert('上传的图片格式应为bmp/jpg/jpeg/png/gif格式');history.back(-1);</script>");
return;
}
double size = UpImage.PostedFile.ContentLength;
if (size >= 1024000)
{
Response.Write("<script>alert('添加失败！（图片容量请不要超过1MB）')</script>");
return;
}
string name = this.Image1.ImageUrl.Substring(14); //原来图片的URL
string webFilePath = Server.MapPath("~/NewsImages/" + name); //用来删除原有的图片
string indexpath = Server.MapPath(this.Image1.ImageUrl);
string filename = UpImage.PostedFile.FileName;
filename = System.IO.Path.GetFileName(filename);
//改文件名
int index = filename.LastIndexOf(".");
string lastName = filename.Substring(index, filename.Length - index);//获得文件后缀类型
//新文件名称,以时间年月日时分秒作为文件名
string newname = "BBSSubject" + DateTime.Now.ToString("yyyyMMddhhmmss") + lastName;
string newpath = Server.MapPath("~/NewsImages/" + newname);//用来保存新上传的图片
string newindexpath = Server.MapPath("~/IndexImages/" + newname);
System.IO.FileInfo file = new System.IO.FileInfo(webFilePath);
System.IO.FileInfo indexfile = new System.IO.FileInfo(indexpath);
if (file.Exists)
{
file.Delete();//删除
}
if (indexfile.Exists)
{
indexfile.Delete();//删除
}
if (!File.Exists(newpath))
{
UpImage.SaveAs(newpath);// 使用 SaveAs 方法保存文件
System.Drawing.Image image = System.Drawing.Image.FromFile(newpath);
float a = image.Width / image.Height;
if (a > 5)
{
image.Dispose();
File.Delete(newpath);
Response.Write("<script>alert('高宽比例不合适');</script>");
return;
}
System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(image, 80, 80);
if (!File.Exists(newindexpath))
{
bmp.Save(newindexpath);
}
image.Dispose();
bmp.Dispose();
File.Delete(newpath);
}
string title = Server.HtmlEncode(txtModTitle.Text.Trim());
string describe = Server.HtmlEncode(Describe.Text.Trim());
string sqlstr = "update tb_Module set ModuleName='"
+ title + "',ModuleDescribe='"
+ describe + "',ModuleImage='"
+ newname + "' where ModuleID='" + Request["ModuleID"].ToString() + "'";
if (sqlBind.DataCom(sqlstr))
{
Response.Write("<script>alert('修改成功');window.location.href='ManageMudole.aspx';</script>");
}
else
{
Response.Write("<script>alert('修改失败');history.back();</script>");
}
}
}