Question

我有一个显示很多照片的网站，用asp.net和sql server构建，照片存储在服务器的文件夹中，指向存储在sql server中的照片。我使用iis7在我的Windows计算机上托管了该网站，当我从同一台计算机查看该网站时，我在Temp Internet Files文件夹中找不到任何照片。由于网站尚未在线，因此不确定是否使用其他计算机。那么这里发生了什么？我做错了什么或IE没有从localhost下载图片到临时文件夹??

Answer 1

当我想显示存储在服务器上的另一个文件夹中的图像时，我会这样做。我是新手，所以我所做的可能不是最有效或最好的方式，但它有效，并且可能会让你知道如何更改代码以获得所需的结果。

1）将服务器上的路径添加到appSettings下的web.config。

<configuration>

  <appSettings>
    <add key="ClientContactBusinessCardImagePath" value="C:\Content\BusinessCards\" />
    <add key="SupportLogPDFPath" value="C:\Content\SupportLogPDFs\" />
    <add key="NewsAttachmentPath" value="C:\Content\NewsAttachments\" />
  </appSettings>
  <system.web>
     //etc.
  </system.web>
</configuration>

2）这是我从服务器上存储的文件夹中显示名片的方法，但不是项目的一部分：

private void showBusinessCard(int setwidth)
{
    float fileWidth;
    float fileHeight;
    float sizeratio;
    float calculatedheight;
    int roundedheight;
    try
    {
        FileStream fstream = new FileStream(WebConfigurationManager.AppSettings["ClientContactBusinessCardImagePath"] + BusinessCardLabel.Text, FileMode.Open, FileAccess.Read, FileShare.Read);
        System.Drawing.Image image = System.Drawing.Image.FromStream(fstream);
        fstream.Dispose();
        fileWidth = image.Width;
        fileHeight = image.Height;
        sizeratio = fileHeight / fileWidth;

        calculatedheight = setwidth * sizeratio;
        roundedheight = Convert.ToInt32(calculatedheight);

        imgbusinesscard.Width = setwidth;
        imgbusinesscard.Height = roundedheight;

        imgbusinesscard.ImageUrl = "ImageHandler.ashx?img=" + BusinessCardLabel.Text;
        hlbusinesscard.NavigateUrl = "ImageHandler.ashx?img=" + BusinessCardLabel.Text;
    }
    catch
    {
        imgbusinesscard.ImageUrl = "~/images/editcontact/businesscard-noimage.png";
        imgbusinesscard.Width = 240;
        imgbusinesscard.Height = 180;
    }

3）在那里中间调用的ImageHandler看起来像这样：

public void ProcessRequest(HttpContext context)
{
    try
    {
        string imageFileName = context.Request.QueryString["img"];

        System.Drawing.Image objImage = System.Drawing.Bitmap.FromFile(Path.Combine(WebConfigurationManager.AppSettings["ClientContactBusinessCardImagePath"], imageFileName));

        if (imageFileName != null)
        {
            MemoryStream objMemoryStream = new MemoryStream();
            objImage.Save(objMemoryStream, System.Drawing.Imaging.ImageFormat.Jpeg);
            byte[] imageContent = new byte[objMemoryStream.Length];
            objMemoryStream.Position = 0;
            objMemoryStream.Read(imageContent, 0, (int)objMemoryStream.Length);
            objMemoryStream.Dispose();
            objImage.Dispose();
            context.Response.ContentType = "image/jpeg";
            context.Response.BinaryWrite(imageContent);
        }
    }
    catch { }
}

asp.net：当我查看自己的网站时，为什么我在Temp Internet File文件夹中找不到图片？

1 个答案: