谁有用fileupload控件上传图片的代码

Question

RT,别太复杂了，只有先判断下文件后缀，如果对的话就用save as 方法保存下图片就可以了，以前我的项目里有，但是找不到了，手写又比较麻烦，请高手共享下代码吧!

Answer 1

string fn = fi.FileName;//取出的fi文件的名称        if (string.IsNullOrEmpty(fn) || fn.Length < 1)
        {
            
            Page.ClientScript.RegisterClientScriptBlock(Page.GetType(), "message", " <script>alert('请上传图片！'); </script>");
        }
        else
        {
            string pSuffix = fn.Substring(fn.LastIndexOf(".") + 1);
            if (pSuffix.ToLower() != "jpg" && pSuffix.ToLower() != "bmp" && pSuffix.ToLower() != "png" && pSuffix.ToLower() != "gif")
            {
                Page.ClientScript.RegisterClientScriptBlock(Page.GetType(), "message", " <script>alert('请上传正确的图片类型！'); </script>");
            }
            else
            {
                string pFileName = fn;//设置后的fi文件名
                string pPath = Server.MapPath("../images/photo/") + pFileName;//上传到服务器的目录名称
                fi.PostedFile.SaveAs(pPath);
                string pVirtualPath = "images\\photo\\" + pFileName;                SqlParameter[] para ={ new SqlParameter("@id", SqlDbType.Int), new SqlParameter("@photoAddress", SqlDbType.NVarChar, 80), new SqlParameter("@photoExplain", SqlDbType.NVarChar, 80) };
                para[0].Value = id;
                para[1].Value = pVirtualPath;
                para[2].Value = pExplain;
                SqlHelper.executeNonQuery("update photo set photoAddress=@photoAddress,photoExplain=@photoExplain where id=@id", CommandType.Text, para);
                Page.ClientScript.RegisterClientScriptBlock(Page.GetType(), "message", " <script>alert('更新成功！'); </script>");
            }
        }

Answer 2

参考
http://www.cnblogs.com/weekzero/archive/2006/05/05/392003.html

Answer 3

 protected void btnGoUp_Click(object sender, EventArgs e)
    {
        string str = this.File1.PostedFile.FileName;
        if (str == "")
        {
            Response.Write(bc.MassageBox("请选择上传图片！"));
            return;
        }        string ss = str.Substring(str.LastIndexOf("\\") + 1);
        string s = Server.MapPath("~\\photo\\" + ss);
        path = "~\\photo\\" + ss;
        if (File.Exists(s))
        {
            Response.Write(bc.MassageBox("该文件已经存在，请重新命名！！！"));
            return;
        }
        this.File1.PostedFile.SaveAs(s);
        Response.Write(bc.MassageBox("上传成功！"));
    }这个比较简单

Answer 4

http://download.csdn.net/source/872260  ASP.NET图片的上传

Answer 5

protected void BtnUpload_Click(object sender, EventArgs e)
    {
        bool fileOK = false;
        string path = Server.MapPath("~/Temp/");
        if (FileUpload1.HasFile)
        {
            String fileExtension = System.IO.Path.GetExtension(FileUpload1.FileName).ToLower();
            String[] allowedExtensions = { ".gif", ".png", ".bmp", ".jpg" };
            for (int i = 0; i < allowedExtensions.Length; i++)
            {
                if (fileExtension == allowedExtensions[i])
                {
                    fileOK = true;
                }
            }
        }
        if (fileOK)
        {
            try
            {
                FileUpload1.SaveAs(path + FileUpload1.FileName);
                LabMessage1.Text = "文件上传成功.";
                LabMessage2.Text = "<b>原文件路径：</b>" + FileUpload1.PostedFile.FileName + "<br />" +
                              "<b>文件大小：</b>" + FileUpload1.PostedFile.ContentLength + "字节<br />" +
                              "<b>文件类型：</b>" + FileUpload1.PostedFile.ContentType + "<br />";
            }
            catch (Exception ex)
            {
                LabMessage1.Text = "文件上传不成功.";
            }
        }
        else
        {
            LabMessage1.Text = "只能够上传图片文件.";
        }
    }