C#實現(xiàn)多線程寫入同一個文件的方法

更新時間：2015年08月22日 10:29:36 作者：我心依舊

這篇文章主要介紹了C#實現(xiàn)多線程寫入同一個文件的方法,涉及C#多線程操作文件讀寫的相關技巧,具有一定參考借鑒價值,需要的朋友可以參考下

本文實例講述了C#實現(xiàn)多線程寫入同一個文件的方法。分享給大家供大家參考。具體實現(xiàn)方法如下：

namespace WfpApp
{
 public partial class Form2 : Form
 {
  object obj = new object();
  public Form2()
  {
   InitializeComponent();
   System.Threading.Thread thread;
   string[] users = new string[] { "zkk", "admin", "administrator", "soft", "iany", "nec", "necsl" };
   for (int i = 0; i < users.Length; i++)
   {
    thread = new System.Threading.Thread(new System.Threading.ParameterizedThreadStart(WriteLock));
    thread.Start(users[i]);
   }
  }
  public void WriteThread(object user)
  {
   string path = System.Windows.Forms.Application.StartupPath + "\\app\\";
   if (!System.IO.Directory.Exists(path))
    System.IO.Directory.CreateDirectory(path);
   path = path + "\\" + DateTime.Now.ToString("yyyyMMdd") + ".txt";
   StringBuilder sb = new StringBuilder();
   sb.AppendLine("----------------------------" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff") + "--------------------------");
   sb.AppendLine(user.ToString());
   sb.AppendLine("---------------------------------------------------------------------------------");
   sb.AppendLine();
   //if (!System.IO.File.Exists(path))
   // System.IO.File.Create(path).Close();
   System.IO.FileStream fileStream = new System.IO.FileStream(path, System.IO.FileMode.Append, System.IO.FileAccess.Write, System.IO.FileShare.ReadWrite);
   System.IO.StreamWriter sw = new System.IO.StreamWriter(fileStream, Encoding.Default);
   sw.Write(sb.ToString());
   sw.Close();
   sw.Dispose();
   fileStream.Close();
   fileStream.Dispose();
  }
  public void WriteLock(object user)
  {
   lock (obj)
   {
    string path = System.Windows.Forms.Application.StartupPath + "\\app\\";
    if (!System.IO.Directory.Exists(path))
     System.IO.Directory.CreateDirectory(path);
    path = path + "\\" + DateTime.Now.ToString("yyyyMMdd") + ".txt";
    StringBuilder sb = new StringBuilder();
    sb.AppendLine("----------------------------" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff") + "--------------------------");
    sb.AppendLine(user.ToString());
    sb.AppendLine("---------------------------------------------------------------------------------");
    sb.AppendLine();
    if (!System.IO.File.Exists(path))
     System.IO.File.Create(path).Close();
    System.IO.FileStream fileStream = new System.IO.FileStream(path, System.IO.FileMode.Append, System.IO.FileAccess.Write);
    System.IO.StreamWriter sw = new System.IO.StreamWriter(fileStream, Encoding.Default);
    sw.Write(sb.ToString());
    sw.Close();
    sw.Dispose();
    fileStream.Close();
    fileStream.Dispose();
   }
  }
 }
}

希望本文所述對大家的C#程序設計有所幫助。

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