ASP.NET上传图片代码

来源：互联网发布：郑州宽带网络哪家好编辑：程序博客网时间：2024/06/06 14:09

ASP.NET上传图片代码：

using System;

using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
this.Title = "图片上传";
Image1.AlternateText = "图片尚未上传";
Label1.Visible = false;
Label2.Visible = false;
}
protected void file_Click(object sender, EventArgs e)
{
if (FileUpload1.HasFile)
{
string name = FileUpload1.PostedFile.FileName;
FileInfo file = new FileInfo(name);
string fileName = file.Name;
string webFilePath = Server.MapPath("images/" + fileName);
string fileContentType = FileUpload1.PostedFile.ContentType;
if (fileContentType == "image/bmp" || fileContentType == "image/gif" || fileContentType == "image/pjpeg")
{
if (!File.Exists(webFilePath))
{
try
{
FileUpload1.SaveAs(webFilePath);
Label1.Visible = true;
Label2.Visible = true;
Label1.Text = "文件“" + fileName + "“成功上传，" + "文件大小为：" + FileUpload1.PostedFile.ContentLength + "字节";
Image1.Visible = true;
Image1.ImageUrl = "images/" + fileName;
Image1.Width = 200;
Image1.Height = 150;
Label2.Text = "按200×150大小显示";
}
catch (Exception ex)
{
Label1.Visible = true;
Label1.Text = "文件上传失败，失败原因：" + ex.Message;
}
}
else
{
Label1.Visible = true;
Label1.Text = "文件已经存在，请重命名后上传";
}
}
else
{
Label1.Visible = true;
Label1.Text = "文件类型不符，只能上传*.bmp,*.jpg,*.gif类型的文件";
}
}
else
{
Label1.Visible = true;
Label1.Text = "请选择文件或输入文件路径及名称！";
}
}

}