Tools Function-优快云博客

本文介绍了使用C#进行日志记录的方法，并提供了一个示例函数用于按日期创建日志文件。此外，还展示了如何从数据表构建实体列表及对象到XML字符串的转换。

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public static void TraceLog(string message, string logFileName)
        {
            string tmppath = AppDomain.CurrentDomain.BaseDirectory + "\\Log\\";

            if (!Directory.Exists(tmppath))
            {
                Directory.CreateDirectory(tmppath);
            }
            lock (s_lock)
            {
                StreamWriter myFile = null;
                try
                {
                    myFile = new StreamWriter(tmppath + DateTime.Now.ToString("yyyyMMdd") + logFileName + ".log", true,
                                              Encoding.Default);
                    var textL = new TextWriterTraceListener(myFile);
                    var defL = new DefaultTraceListener();
                    if (Trace.Listeners.IndexOf(textL) == -1)
                    {
                        Trace.Listeners.Clear();
                        Trace.Listeners.Add(textL);
                        Trace.Listeners.Add(defL);
                    }
                    Trace.AutoFlush = true;

                    Trace.WriteLine(string.Empty);
                    Trace.WriteLine(message);
                }
                catch (Exception ioe)
                {
                    Console.WriteLine(ioe.Message);
                }
                finally
                {
                    if (myFile != null)
                    {
                        myFile.Close();
                        myFile.Dispose();
                    }
                }
            }
        }


public static List<T> BuildEntityList<T>(DataTable table) where T : class, new()
        {
            if (table == null)
            {
                return new List<T>(0);
            }
            var list = new List<T>(table.Rows.Count);
            foreach (DataRow row in table.Rows)
            {
                list.Add(EntityBuilder.BuildEntity<T>(row));
            }
            return list;
        }


 public static string ConvertObject<T>(T o)
        {
            StringBuilder sb = new StringBuilder();
            using (TextWriter reader = new StringWriter(sb))
            {
                var serializer = new XmlSerializer(typeof(T));
                serializer.Serialize(reader, o);
                reader.WriteLine();
                return sb.ToString();
            }
        }