C#.NET Log操作

 

using System;
using System.Text;
using System.Web;
using System.IO;
using System.Collections;
using System.Threading;

namespace Pub.Class
{
    /// <summary>
    /// 日志管理类
    /// </summary>
    public class Log
    {
        private static object lockHelper = new object();
        #region Write/Read
        /// <summary>
        /// 写日志
        /// </summary>
        /// <param name="LogFileName">文件</param>
        /// <param name="Strings">消息</param>
        public static bool Write(string fileName,string str) {
            return Write(fileName, str, "utf-8");
        }
        /// <summary>
        /// 写日志gb2312 UTF-8
        /// </summary>
        /// <param name="fileName">文件</param>
        /// <param name="str">消息</param>
        /// <param name="encoding">编码gb2312 UTF-8</param>
        public static bool Write(string fileName,string str,string encoding){
            bool _isTrue = false;
            lock(lockHelper) {
                System.IO.FileStream f = null;
                System.IO.StreamWriter f2 = null;
                try {
                    if (!System.IO.File.Exists(fileName)) { f = System.IO.File.Create(fileName); f.Close(); f.Dispose(); f = null; }
                    f2 = new System.IO.StreamWriter(fileName, true, System.Text.Encoding.GetEncoding(encoding));
                    f2.WriteLine(str); 
                    _isTrue = true;
                } catch { } finally {
                    if (f!=null) { f.Close(); f.Dispose(); f = null; }
                    if (f2!=null) { f2.Close(); f2.Dispose(); f2 = null; }
                }
            }
            return _isTrue;
        }
        /// <summary>
        /// 读取文件中的内容
        /// </summary>
        /// <param name="fileName">文件</param>
        /// <param name="encoding">编码gb2312 UTF-8</param>
        /// <returns>ArrayList</returns>
        public static ArrayList Read(string fileName,string encoding){
            string lineText = null;ArrayList txtTextArr = new ArrayList();
            if (!FileFolder.FileExists(fileName)) { txtTextArr = null; return txtTextArr; }

            lock(lockHelper) {
                StreamReader reader = encoding.Equals("") ? new StreamReader(fileName) : new StreamReader(fileName, System.Text.Encoding.GetEncoding(encoding));
                while ((lineText = reader.ReadLine()) != null){
                    txtTextArr.Add(lineText);
                }

                reader.Close();
                reader.Dispose();
            }
            return txtTextArr;
        }
        /// <summary>
        /// 读取指定文件内容
        /// </summary>
        /// <param name="fileName">文件路径</param>
        /// <param name="encoding">编码</param>
        /// <returns></returns>
        public static StringBuilder ReadFile(string fileName,string encoding){
            string lineText = null;StringBuilder txtTextArr = new StringBuilder();
            if (!FileFolder.FileExists(fileName)) { txtTextArr = null; return txtTextArr; }

            lock(lockHelper) {
                StreamReader reader = encoding.Equals("") ? new StreamReader(fileName) : new StreamReader(fileName, System.Text.Encoding.GetEncoding(encoding));
                while ((lineText = reader.ReadLine()) != null){
                    txtTextArr.Append(lineText + Environment.NewLine);
                }

                reader.Close();
                reader.Dispose();
            }
            return txtTextArr;
        }
        #endregion
    }
}