该试验分以下步骤：
1、在服务器设置一个共享文件夹，在这里我的服务器ip地址是10.80.88.180，共享文件夹名字是test，test里面有两个文件：good.txt和bad.txt，访问权限，用户名是admin，密码是admin。
2、新建一个webapplication项目，在前台页面加一个listbox，ID是ListBox1.
3、添加后台代码如下：其中包含的功能是读文件，这里以读good 文件为例；写文件，这里以写bad文件为例；还有是将test文件夹下的文件名列到listbox中。
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Text; using System.Diagnostics; using System.IO; namespace WebApplication2 { public class FileShare { public FileShare() { } public static bool connectState( string path) { return connectState(path, "", ""); } public static bool connectState( string path, string userName, string passWord) { bool Flag = false; Process proc = new Process(); try { proc.StartInfo.FileName = " cmd.exe "; proc.StartInfo.UseShellExecute = false; proc.StartInfo.RedirectStandardInput = true; proc.StartInfo.RedirectStandardOutput= true; proc.StartInfo.RedirectStandardError= true; proc.StartInfo.CreateNoWindow= true; proc.Start(); string dosLine = @" net use " + path + " /User: " + userName + " " + passWord + " /PERSISTENT:YES "; proc.StandardInput.WriteLine(dosLine); proc.StandardInput.WriteLine( " exit "); while (!proc.HasExited) { proc.WaitForExit( 1000); } string errormsg = proc.StandardError.ReadToEnd(); proc.StandardError.Close(); if ( string.IsNullOrEmpty(errormsg)) { Flag = true; } else { throw new Exception(errormsg); } } catch (Exception ex) { throw ex; } finally { proc.Close(); proc.Dispose(); } return Flag; } // read file public static void ReadFiles( string path) { try { // Create an instance of StreamReader to read from a file. // The using statement also closes the StreamReader. using (StreamReader sr = new StreamReader(path)) { String line; // Read and display lines from the file until the end of // the file is reached. while ((line = sr.ReadLine()) != null) { Console.WriteLine(line); } } } catch (Exception e) { // Let the user know what went wrong. Console.WriteLine( " The file could not be read: "); Console.WriteLine(e.Message); } } // write file public static void WriteFiles( string path) { try { // Create an instance of StreamWriter to write text to a file. // The using statement also closes the StreamWriter. using (StreamWriter sw = new StreamWriter(path)) { // Add some text to the file. sw.Write( " This is the "); sw.WriteLine( " header for the file. "); sw.WriteLine( " ------------------- "); // Arbitrary objects can also be written to the file. sw.Write( " The date is: "); sw.WriteLine(DateTime.Now); } } catch (Exception e) { // Let the user know what went wrong. Console.WriteLine( " The file could not be read: "); Console.WriteLine(e.Message); } } } public partial class _Default : System.Web.UI.Page { protected void Page_Load( object sender, EventArgs e) { bool status = false; // 连接共享文件夹 status = FileShare.connectState( @" \\10.80.88.180\test ", " admin ", " admin "); if (status) { DirectoryInfo theFolder = new DirectoryInfo( @" \\10.80.88.180\test "); // 先测试读文件，把目录路径与文件名连接 string filename = theFolder.ToString()+ " \\good.txt "; FileShare.ReadFiles(filename); // 测试写文件，拼出完整的路径 filename = theFolder.ToString() + " \\bad.txt "; FileShare.WriteFiles(filename); // 遍历共享文件夹，把共享文件夹下的文件列表列到listbox foreach (FileInfo nextFile in theFolder.GetFiles()) { ListBox1.Items.Add(nextFile.Name); } } else { ListBox1.Items.Add( " 未能连接！ "); } } }}
按以上步骤，即可实现读写网络共享文件。
转载于:https://www.cnblogs.com/ManMonth/archive/2011/10/11/2206998.html
相关资源：C#访问网络共享文件夹的方法