protected void Upload()
{
//判断是否选择文件
if (FileUpload1.HasFile)
{
string fileContentType = FileUpload1.PostedFile.ContentType;//获取文件类型
//判断类型是否符合条件
if (fileContentType == "image/bmp" || fileContentType == "image/gif" || fileContentType == "image/pjpeg"||fileContentType=="image/PNG")
{
//客户端文件路径
string name = FileUpload1.PostedFile.FileName;
FileInfo file = new FileInfo(name);
//文件名称
string fileName = file.Name;
//服务器端文件路径
string webFilePath = Server.MapPath("resource/" + fileName);
//判断同名文件是否存在
if (!File.Exists(webFilePath))
{
try
{
//使用SaveAs方法保存文件
FileUpload1.SaveAs(webFilePath);
this.lMsg.Text = "提示：文件" + fileName + "上传成功！";
this.lPathInfo.Text = "resource" + fileName;
this.iPic.ImageUrl = "resource" + fileName;
}
catch (Exception ex)
{
this.lMsg.Text = "提示:文件上传失败，失败原因：" + ex.Message;
}
}
else
{
this.lMsg.Text = "提示：文件已经存在，请重命名后上传";
}
}
else
{
this.lMsg.Text = "提示：文件类型不符合";
}
}
}
protected void btUpload_Click(object sender, EventArgs e)
{
if (Directory.Exists("resource"))
{
Upload();
}
else
{
Directory.CreateDirectory(Server.MapPath("resource"));
Upload();
}
}