日志管理——log4net的应用
log4Net的应用
Log4net是针对.Net.日志类库，并且稳定。其功能还是挺强大的，可将日志分不同的等级，以不同的样式，将日志输出到不同的媒介。使用过程中，主要还是在于配置文件的配置。
一、添加log4net组件
二、定义一个接口
public interface ILogService
{
/// <summary>
/// 写本地及服务器日志
/// </summary>
/// <param name="model"></param>
void Log(Log model);
void Log(List<Log> list);
/// <summary>
/// 写本地日志
/// </summary>
/// <param name="model"></param>
void Log2Local(Log model);
void Log2Local(List<Log> list);
/// <summary>
/// 写服务器日志
/// </summary>
/// <param name="model"></param>
void Log2Server(Log model);
void Log2Server(List<Log> list);
}
三、定义一个记录日志实体
public class Log
{
/// <summary>
/// 日志ID
/// </summary>
public string Id
{
get;
set;
}
/// <summary>
/// 来源
/// </summary>
public string Item
{
get;
set;
}
/// <summary>
/// 用户ID
/// </summary>
public string UserId
{
get;
set;
}
/// <summary>
/// 用户名
/// </summary>
public string UserName
{
get;
set;
}
/// <summary>
/// 日志概述
/// </summary>
public string Summary
{
get;
set;
}
/// <summary>
/// 创建时间
/// </summary>
public DateTime LogTime
{
get;
set;
}
/// <summary>
/// 日志级别
/// </summary>
public string Level
{
get;
set;
}
/// <summary>
/// 动作
/// </summary>
public string Action
{
get;
set;
}
public override string ToString()
{
return String.Format("日志级别:{0} 记录时间：{1} 来源名称：{2} 动作：{3} 描述：{4}",
Level,
LogTime.ToString(),
Item,
Action,
Summary);
}
}
四、实现定义的接口
public class LogService:ILogService
{
log4net.ILog logger = null;
Dictionary<LogAction, String> ActionDictionary = new Dictionary<LogAction, String>();
Dictionary<LogLevel, String> LevelDictionary = new Dictionary<LogLevel, String>();
public LogService()
{
BuildDirectory();
BuildEnumString();
logger = LogManager.GetLogger("TestLog");
}
/// <summary>
/// 创建存放日志的文件夹及文件
/// </summary>
protected void BuildDirectory()
{
string folder = ConfigurationManager.AppSettings["LogFile"].Split('\\')[0];
string fullFolder = Path.Combine(Application.StartupPath, folder);
string logfilePath = Path.Combine(Application.StartupPath,
ConfigurationManager.AppSettings["LogFile"]);
if (!Directory.Exists(fullFolder))
{
Directory.CreateDirectory(fullFolder);
}
if (!File.Exists(logfilePath))
{
File.Create(logfilePath);
}
}
/// <summary>
/// 设置枚举的字符串化值
/// </summary>
protected void BuildEnumString()
{
ActionDictionary.Add(LogAction.INSERT, "新增");
ActionDictionary.Add(LogAction.DELETE, "删除");
ActionDictionary.Add(LogAction.UPDATE, "修改");
ActionDictionary.Add(LogAction.UNKNOWN, "其他");
LevelDictionary.Add(LogLevel.INFO, "信息");
LevelDictionary.Add(LogLevel.WARN, "警告");
LevelDictionary.Add(LogLevel.ERROR, "错误");
LevelDictionary.Add(LogLevel.FATAL, "致命错误");
LevelDictionary.Add(LogLevel.UNKNOWN, "未定义级别");
}
#region ILogService 成员
public void Log(Log model)
{
throw new NotImplementedException();
}
public void Log(List<Log> list)
{
throw new NotImplementedException();
}
public void Log2Local(Log model)
{
LogLevel level =(LogLevel) Enum.Parse(typeof(LogLevel), model.Level) ;
model.Level = LevelDictionary[level];
switch (level)
{
case LogLevel.INFO:
logger.Info(model.ToString());
break;
case LogLevel.ERROR:
logger.Error(model.ToString());
break;
case LogLevel.FATAL:
logger.Fatal(model.ToString());
break;
case LogLevel.WARN:
logger.Warn(model.ToString());
break;
case LogLevel.UNKNOWN:
logger.Info(model.ToString());
break;
default:
break;
}
}
public void Log2Local(List<Log> list)
{
throw new NotImplementedException();
}
public void Log2Server(Log model)
{
throw new NotImplementedException();
}
public void Log2Server(List<Log> list)
{
throw new NotImplementedException();
}
#endregion
}
/// <summary>
/// 日志级别
/// </summary>
public enum LogLevel
{
/// <summary>
/// 信息
/// </summary>
INFO,
/// <summary>
/// 警告
/// </summary>
WARN,
/// <summary>
/// 错误
/// </summary>
ERROR,
/// <summary>
/// 致命错误
/// </summary>
FATAL,
/// <summary>
/// 未定义级别
/// </summary>
UNKNOWN
}
/// <summary>
/// 日志动作
/// </summary>
public enum LogAction
{
/// <summary>
/// 新增动作
/// </summary>
INSERT,
/// <summary>
/// 更新动作
/// </summary>
UPDATE,
/// <summary>
/// 删除动作
/// </summary>
DELETE,
/// <summary>
/// 未定义动作
/// </summary>
UNKNOWN
}
五、将创建好的类拿来用
添加配置文件：
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<section name="log4net" type="System.Configuration.Log4NetConfigurationSectionHandler" />
</configSections>
<appSettings>
<add key="LogFile" value="log\log.txt"/>
</appSettings>
<log4net>
<logger name="TestLog">
<level value="ALL"/>
<appender-ref ref="FileAppender" />
</logger>
<appender name="FileAppender" type="log4net.Appender.FileAppender">
<file value="log\log.txt" />
<appendToFile value="true" />
<layout type="log4net.Layout.PatternLayout">
<ConversionPattern value="%message%newline" />
</layout>
</appender>
</log4net>
</configuration>
重点在于节点<configSections>与<log4net>的配置。
注意在AssemblyInfo.cs中添加[assembly: log4net.Config.XmlConfigurator(ConfigFile = "App.config", Watch = true)]
使其能自动寻找配置文件里面的配置信息。
六。测试
LogService log = new LogService();
Log model = new Log();
model.Id = Guid.NewGuid().ToString();
model.Level = LogLevel.INFO.ToString();
model.LogTime = DateTime.Now;
model.Summary = textBox1.Text;
model.Action = LogAction.INSERT.ToString();
log.Log2Local(model);
