图片上传？？

Question

protected bool Upload()
    {
        if (fudPic.HasFile)
        {
            String fileExtension = System.IO.Path.GetExtension(fudPic.FileName).ToLower();
            String[] allowedExtensions = { ".gif", ".png", ".bmp", ".jpg" };
            for (int i = 0; i < allowedExtensions.Length; i++)
            {
                if (fileExtension == allowedExtensions[i])
                {
                    fileOK = true;
                }
            }
        }
        return fileOK;
    }
    protected void btnUpload_Click(object sender, EventArgs e)
    {
        Upload();
        string path = Server.MapPath("../Temp/");
        if (fileOK)
        {
            try
            {
                this.fudPic.SaveAs(path + this.fudPic.FileName);
                string filename=this.fudPic.FileName;
                string[] sArray =filename.Split('.');
                int i = sArray.Length-1;
                string typename = sArray[i];
                string updatepath = Server.MapPath("../Temp/" + filename);
                FileInfo fi = new FileInfo(updatepath);
                string newname=filename;
                StringBuilder nname = new StringBuilder();
                nname.Append(newname);
                nname.Append(".");
                nname.Append(typename);
                if (fi.Exists)
                {
                    fi.MoveTo(Server.MapPath("../Temp/"+nname));
                }                Response.Write("<script>alert('文件上传成功')</script>");
                this.libUpload.Text = nname.ToString();
                this.lblMessage.Text = "点击查看";
            }
            catch (Exception ex)
            {
                Response.Write("<script>alert('文件上传不成功')</script>");
            }
        }
        else
        {
            Response.Write("<script>alert('只能上传图片文件')</script>");
        }
    }

Answer 1

fileUpload.SaveAs("路径/文件名");

Answer 2

内网将图片服务器的存放目录做一个映射磁盘到iis服务器，注意网络用户的权限设置。

Answer 3

修改fckedit保存图片的地址,指想你的图片服务器上要存的位置

Answer 4

你自己建个TEMP文件夹就可以了
要用FCKediter，在改改配置就可以了，网上很多
http://hi.baidu.com/totsheng/blog/item/8d749b1356f93225dc54011c.html

Answer 5

SaveAs需要的是绝对路径
我的图片服务器跟程序服务器是分开的

Answer 6

[code=C#]using System;
using System.Data;
using System.Configuration;
using System.Collections;
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;
/// <summary>
///UpPic 的摘要说明
/// </summary>
public class UpPic
{
    public UpPic()
    {
        //
        //TODO: 在此处添加构造函数逻辑
        //
    }
    //生成水印方法
    public string GetUpPic(FileUpload upimg, Label lblex)
    {
        string filepath = "";
        string fileName_syp = "";
        string fileName_slt = "";
        if (upimg.HasFile)
        {
            string fileContentType = upimg.PostedFile.ContentType;
            if (fileContentType == "image/bmp" || fileContentType == "image/gif" || fileContentType == "image/pjpeg")
            {
                string name = upimg.PostedFile.FileName;//获得图片的客服段路径                string picName = DateTime.Now.Year.ToString() + DateTime.Now.Month.ToString() + DateTime.Now.Day.ToString() + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString();                FileInfo file = new FileInfo(name);
                string fileName = picName + file.Name;//文件名称
                string fileName_sy = picName + "sy_" + file.Name;//水印图文件名称（文字）
                string fileName_sl = picName + "sl_" + fileName;//缩略图
                fileName_syp = "syp_" + file.Name;// 水印图文件名称（图片）
                fileName_slt = "slt_" + file.Name;                string webFilePath = System.Web.HttpContext.Current.Server.MapPath("../file/" + fileName);// 服务器端文件路径
                string webFilePath_sy = System.Web.HttpContext.Current.Server.MapPath("../file/" + fileName_sy);// 服务器端带水印图路径(文字)
                string webFilePath_syp = System.Web.HttpContext.Current.Server.MapPath("../file/" + fileName_syp);// 服务器端带水印图路径(图片)
                string webFilePath_sypf = System.Web.HttpContext.Current.Server.MapPath("../file/shuiyin.jpg");　// 服务器端水印图路径(图片)
                string webFilePath_slt = System.Web.HttpContext.Current.Server.MapPath("../file/" + fileName_slt);//服务器缩略图路径(图片)                if (!File.Exists(webFilePath))
                {
                    try
                    {
                        upimg.SaveAs(webFilePath);                                // 使用 SaveAs 方法保存文件
                        // AddShuiYinWord(webFilePath, webFilePath_sy);
                        AddShuiYinPic(webFilePath, webFilePath_syp, webFilePath_sypf); //生成水印的方法
                        MakeThumbnail(webFilePath, webFilePath_slt, 80, 60, "Cut");     // 生成缩略图方法
                        lblex.Text = "提示：文件“" + fileName + "”成功上传，并生成缩略图”" + fileName_slt + "“，文件大小为：" + upimg.PostedFile.ContentLength + "B";                    }
                    catch (Exception ex)
                    {
                        lblex.Text = "提示：文件上传失败，失败原因：" + ex.Message;
                    }
                }
                else
                {
                    lblex.Text = "提示：文件已经存在，请重命名后上传";
                }
            }
            else
            {
                lblex.Text = "提示：文件类型不符";
            }
        }
        filepath = fileName_syp + "," + fileName_slt;
        return filepath;    }
    /**/
    /// <summary>
    /// 在图片上增加文字水印
    /// </summary>
    /// <param name="Path">原服务器图片路径</param>
    /// <param name="Path_sy">生成的带文字水印的图片路径</param>
    protected void AddShuiYinWord(string Path, string Path_sy)
    {
        string addText = "www.mymingch.com.cn";
        System.Drawing.Image image = System.Drawing.Image.FromFile(Path);
        System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(image);
        g.DrawImage(image, 0, 0, image.Width, image.Height);
        System.Drawing.Font f = new System.Drawing.Font("Verdana", 16);
        System.Drawing.Brush b = new System.Drawing.SolidBrush(System.Drawing.Color.Blue);        g.DrawString(addText, f, b, 15, 15);
        g.Dispose();        image.Save(Path_sy);
        image.Dispose();
    }
    /// <summary>
    /// 在图片上生成图片水印
    /// </summary>
    /// <param name="Path">原服务器图片路径</param>
    /// <param name="Path_syp">生成的带图片水印的图片路径</param>
    /// <param name="Path_sypf">水印图片路径</param>
    protected void AddShuiYinPic(string Path, string Path_syp, string Path_sypf)
    {
        System.Drawing.Image image = System.Drawing.Image.FromFile(Path);
        System.Drawing.Image copyImage = System.Drawing.Image.FromFile(Path_sypf);
        System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(image);
        g.DrawImage(copyImage, new System.Drawing.Rectangle(image.Width - copyImage.Width, image.Height - copyImage.Height, copyImage.Width, copyImage.Height), 0, 0, copyImage.Width, copyImage.Height, System.Drawing.GraphicsUnit.Pixel);
        g.Dispose();        image.Save(Path_syp);
        image.Dispose();
    }  

Answer 7

  /**/
    /**/
    /**/
    /// <summary>
    /// 生成缩略图
    /// </summary>
    /// <param name="originalImagePath">源图路径（物理路径）</param>
    /// <param name="thumbnailPath">缩略图路径（物理路径）</param>
    /// <param name="width">缩略图宽度</param>
    /// <param name="height">缩略图高度</param>
    /// <param name="mode">生成缩略图的方式</param>    
    public void MakeThumbnail(string originalImagePath, string thumbnailPath, int width, int height, string mode)
    {
        System.Drawing.Image originalImage = System.Drawing.Image.FromFile(originalImagePath);        int towidth = width;
        int toheight = height;        int x = 0;
        int y = 0;
        int ow = originalImage.Width;
        int oh = originalImage.Height;        switch (mode)
        {
            case "HW"://指定高宽缩放（可能变形）                
                break;
            case "W"://指定宽，高按比例                    
                toheight = originalImage.Height * width / originalImage.Width;
                break;
            case "H"://指定高，宽按比例
                towidth = originalImage.Width * height / originalImage.Height;
                break;
            case "Cut"://指定高宽裁减（不变形）                
                if ((double)originalImage.Width / (double)originalImage.Height > (double)towidth / (double)toheight)
                {
                    oh = originalImage.Height;
                    ow = originalImage.Height * towidth / toheight;
                    y = 0;
                    x = (originalImage.Width - ow) / 2;
                }
                else
                {
                    ow = originalImage.Width;
                    oh = originalImage.Width * height / towidth;
                    x = 0;
                    y = (originalImage.Height - oh) / 2;
                }
                break;
            default:
                break;
        }        //新建一个bmp图片
        System.Drawing.Image bitmap = new System.Drawing.Bitmap(towidth, toheight);        //新建一个画板
        System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bitmap);        //设置高质量插值法
        g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;        //设置高质量,低速度呈现平滑程度
        g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;        //清空画布并以透明背景色填充
        g.Clear(System.Drawing.Color.Transparent);        //在指定位置并且按指定大小绘制原图片的指定部分
        g.DrawImage(originalImage, new System.Drawing.Rectangle(0, 0, towidth, toheight),
            new System.Drawing.Rectangle(x, y, ow, oh),
            System.Drawing.GraphicsUnit.Pixel);        try
        {
            //以jpg格式保存缩略图
            bitmap.Save(thumbnailPath, System.Drawing.Imaging.ImageFormat.Jpeg);
        }
        catch (System.Exception e)
        {
            throw e;
        }
        finally
        {
            originalImage.Dispose();
            bitmap.Dispose();
            g.Dispose();
        }
    }    /**/
    /**/
}
[/code]一个多全面的图片上传。已经封装成类。返回一个水印，和缩略图。接上一楼

Answer 8

我将图片服务器的存放目录做一个映射磁盘Z到iis服务器，Z:\MyWeb\house\pic\
 FileUpload1.SaveAs(bigPhysicalPath);
报错
未能找到路径“Z:\MyWeb\house\pic\H_20081118173946_8326B.jpg”的一部分。