本文实例为大家分享了C#读写共享文件夹的具体代码，供大家参考，具体内容如下

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！"); } } }}

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