asp.net(C#)读取服务器根目录下的文件列表

我一点都不懂asp.net,希望高手们能贴出一个在环境中一直可以运行实现的代码.

谢谢.

4 个解决方案

#1

  string dirPath= HttpContext.Current.Server.MapPath("../book/");
             if (Directory.Exists(dirPath))
            {
                //获得目录信息
                DirectoryInfo dir = new DirectoryInfo(dirPath);
                //获得目录文件列表
                FileInfo[] files = dir.GetFiles("*.*");
                string[] fileNames = new string[files.Length];
                int i = 0;
                foreach (FileInfo fileInfo in files)
                {
                    fileNames[i] = fileInfo.Name;
                    i++;
                }
                return fileNames;
            }

#2

能给的详细点吗?全部代码,我是准备放在1.aspx里的,是在浏览器里面看的那种

谢谢

在线等,分一定加

#3

private string[] ReturnFilesArray() {
	if (CurrentImagesFolder.Value != "") {
		try {
			string AppPath = HttpContext.Current.Request.PhysicalApplicationPath;
			string ImageFolderPath = AppPath + CurrentImagesFolder.Value;
			string[] FilesArray = System.IO.Directory.GetFiles(ImageFolderPath,"*");
			return FilesArray;


		} catch {

			return null;
		}
	} else {
		return null;
	}

}

private string[] ReturnDirectoriesArray() {
	if (CurrentImagesFolder.Value != "") {
		try {
			string AppPath = HttpContext.Current.Request.PhysicalApplicationPath;
			string CurrentFolderPath = AppPath + CurrentImagesFolder.Value;
			string[] DirectoriesArray = System.IO.Directory.GetDirectories(CurrentFolderPath,"*");
			return DirectoriesArray ;
		} catch {
			return null;
		}
	} else {
		return null;
	}
}

public void DisplayImages() {
	string[] FilesArray = ReturnFilesArray();
	string[] DirectoriesArray = ReturnDirectoriesArray();
	string AppPath = HttpContext.Current.Request.PhysicalApplicationPath;
	string AppUrl;

	//Get the application's URL
	if (Request.ApplicationPath == "/")
		AppUrl = Request.ApplicationPath;
	else
		AppUrl = Request.ApplicationPath + "/";

	GalleryPanel.Controls.Clear();
	if ( (FilesArray == null || FilesArray.Length == 0) && (DirectoriesArray == null || DirectoriesArray.Length == 0) ) {
		gallerymessage.Text = NoImagesMessage + ": " + RootImagesFolder.Value;
	} else {
		string ImageFileName = "";
		string ImageFileLocation = "";

		int thumbWidth = 94;
		int thumbHeight = 94;

		if (CurrentImagesFolder.Value != RootImagesFolder.Value) {

			System.Web.UI.HtmlControls.HtmlImage myHtmlImage = new System.Web.UI.HtmlControls.HtmlImage();
			myHtmlImage.Src = AppUrl + "images/ftb/folder.up.gif";
			myHtmlImage.Attributes["unselectable"]="on"; 
			myHtmlImage.Attributes["align"]="absmiddle"; 
			myHtmlImage.Attributes["vspace"]="36"; 

			string ParentFolder = CurrentImagesFolder.Value.Substring(0,CurrentImagesFolder.Value.LastIndexOf("\\"));

			System.Web.UI.WebControls.Panel myImageHolder = new System.Web.UI.WebControls.Panel();					
			myImageHolder.CssClass = "imageholder";
			myImageHolder.Attributes["unselectable"]="on"; 
			myImageHolder.Attributes["onclick"]="divClick(this,'');";  
			myImageHolder.Attributes["ondblclick"]="gotoFolder('" + RootImagesFolder.Value + "','" + ParentFolder.Replace("\\","\\\\") + "');";  
			myImageHolder.Controls.Add(myHtmlImage);

			System.Web.UI.WebControls.Panel myMainHolder = new System.Web.UI.WebControls.Panel();
			myMainHolder.CssClass = "imagespacer";
			myMainHolder.Controls.Add(myImageHolder);

			System.Web.UI.WebControls.Panel myTitleHolder = new System.Web.UI.WebControls.Panel();
			myTitleHolder.CssClass = "titleHolder";
			myTitleHolder.Controls.Add(new LiteralControl("向上"));
			myMainHolder.Controls.Add(myTitleHolder);

			GalleryPanel.Controls.Add(myMainHolder);		

		}

		foreach (string _Directory in DirectoriesArray) {

			try {
				string DirectoryName = _Directory.ToString();


				System.Web.UI.HtmlControls.HtmlImage myHtmlImage = new System.Web.UI.HtmlControls.HtmlImage();
				myHtmlImage.Src = AppUrl + "images/ftb/folder.big.gif";
				myHtmlImage.Attributes["unselectable"]="on"; 
				myHtmlImage.Attributes["align"]="absmiddle"; 
				myHtmlImage.Attributes["vspace"]="29"; 

				System.Web.UI.WebControls.Panel myImageHolder = new System.Web.UI.WebControls.Panel();					
				myImageHolder.CssClass = "imageholder";
				myImageHolder.Attributes["unselectable"]="on"; 
				myImageHolder.Attributes["onclick"]="divClick(this);";  
				myImageHolder.Attributes["ondblclick"]="gotoFolder('" + RootImagesFolder.Value + "','" + DirectoryName.Replace(AppPath,"").Replace("\\","\\\\") + "');";  
				myImageHolder.Controls.Add(myHtmlImage);

				System.Web.UI.WebControls.Panel myMainHolder = new System.Web.UI.WebControls.Panel();
				myMainHolder.CssClass = "imagespacer";
				myMainHolder.Controls.Add(myImageHolder);

				System.Web.UI.WebControls.Panel myTitleHolder = new System.Web.UI.WebControls.Panel();
				myTitleHolder.CssClass = "titleHolder";
				myTitleHolder.Controls.Add(new LiteralControl(DirectoryName.Replace(AppPath + CurrentImagesFolder.Value + "\\","")));
				myMainHolder.Controls.Add(myTitleHolder);

				GalleryPanel.Controls.Add(myMainHolder);		
			} catch {
				// nothing for error
			}
		}

		foreach (string ImageFile in FilesArray) {

			try {

				ImageFileName = ImageFile.ToString();
				ImageFileName = ImageFileName.Substring(ImageFileName.LastIndexOf("\\")+1);
				ImageFileLocation = AppUrl;
				ImageFileLocation = ImageFileLocation.Substring(ImageFileLocation.LastIndexOf("\\")+1);
				//galleryfilelocation += "/";
				ImageFileLocation += CurrentImagesFolder.Value;
				ImageFileLocation += "/";
				ImageFileLocation += ImageFileName;
				System.Web.UI.HtmlControls.HtmlImage myHtmlImage = new System.Web.UI.HtmlControls.HtmlImage();
				myHtmlImage.Src = ImageFileLocation;
				System.Drawing.Image myImage = System.Drawing.Image.FromFile(ImageFile.ToString());
				myHtmlImage.Attributes["unselectable"]="on";  
				//myHtmlImage.border=0;

				// landscape image
				if (myImage.Width > myImage.Height) {
					if (myImage.Width > thumbWidth) {
						myHtmlImage.Width = thumbWidth;
						myHtmlImage.Height = Convert.ToInt32(myImage.Height * thumbWidth/myImage.Width);						
					} else {
						myHtmlImage.Width = myImage.Width;
						myHtmlImage.Height = myImage.Height;
					}
				// portrait image
				} else {
					if (myImage.Height > thumbHeight) {
						myHtmlImage.Height = thumbHeight;
						myHtmlImage.Width = Convert.ToInt32(myImage.Width * thumbHeight/myImage.Height);
					} else {
						myHtmlImage.Width = myImage.Width;
						myHtmlImage.Height = myImage.Height;
					}
				}

				if (myHtmlImage.Height < thumbHeight) {
					myHtmlImage.Attributes["vspace"] = Convert.ToInt32((thumbHeight/2)-(myHtmlImage.Height/2)).ToString(); 
				}


				System.Web.UI.WebControls.Panel myImageHolder = new System.Web.UI.WebControls.Panel();					
				myImageHolder.CssClass = "imageholder";
				myImageHolder.Attributes["onclick"]="divClick(this,'" + ImageFileName + "');";  
				myImageHolder.Attributes["ondblclick"]="returnImage('" + ImageFileLocation.Replace("\\","/") + "','" + myImage.Width.ToString() + "','" + myImage.Height.ToString() + "');";  
				myImageHolder.Controls.Add(myHtmlImage);


				System.Web.UI.WebControls.Panel myMainHolder = new System.Web.UI.WebControls.Panel();
				myMainHolder.CssClass = "imagespacer";
				myMainHolder.Controls.Add(myImageHolder);

				System.Web.UI.WebControls.Panel myTitleHolder = new System.Web.UI.WebControls.Panel();
				myTitleHolder.CssClass = "titleHolder";
				myTitleHolder.Controls.Add(new LiteralControl(ImageFileName + "<BR>" + myImage.Width.ToString() + "x" + myImage.Height.ToString()));
				myMainHolder.Controls.Add(myTitleHolder);

				//GalleryPanel.Controls.Add(myImage);
				GalleryPanel.Controls.Add(myMainHolder);

				myImage.Dispose();
			} catch {

			}
		}
		gallerymessage.Text = "";
	}
}

#4

#1 的方法很简洁嘛！！ 我试一下！

string dirPath= HttpContext.Current.Server.MapPath("../book/");
  if (Directory.Exists(dirPath))
  {
  //获得目录信息
  DirectoryInfo dir = new DirectoryInfo(dirPath);
  //获得目录文件列表
  FileInfo[] files = dir.GetFiles("*.*");
  string[] fileNames = new string[files.Length];
  int i = 0;
  foreach (FileInfo fileInfo in files)
  {
  fileNames[i] = fileInfo.Name;
  i++;
  }
  return fileNames;
  }