1、
nuget install package log4net
2、站点跟目录新建配置文件 LogWriterConfig.xml
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<section name="log4net"
type="log4net.Config.Log4NetConfigurationSectionHandler,log4net-net-2.0"/>
</configSections>
<log4net>
<root>
<level value="ALL" />
<appender-ref ref="LogFileAppender" />
</root> <logger name="Idc.Logger" additivity="false">
<appender-ref ref="LogFileAppender" />
</logger> <!--Log File Setting-->
<appender name ="LogFileAppender" type="log4net.Appender.RollingFileAppender">
<param name="File" value ="Log\Trace-"/>
<param name="AppendToFile" value="true" />
<param name="MaxSizeRollBackups" value="" />
<param name="MaxFileSize" value="" />
<param name="StaticLogFileName" value="false" />
<param name="DatePattern" value="yyyy.MM.dd'.log'" />
<param name="RollingStyle" value ="Date" /> <layout type="log4net.Layout.PatternLayout">
<param name="ConversionPattern" value="%date{yyyy-MM-dd HH:mm:ss,fff} %-5p : %m%n"/>
</layout> <!--FATAL > ERROR > WARN > INFO > DEBUG-->
<filter type="log4net.Filter.LevelRangeFilter">
<param name="LevelMin" value="WARN" />
<param name="LevelMax" value="FATAL" />
</filter>
</appender>
</log4net>
</configuration>
3、新建类
public class LogWriter
{
private ILog _log4Net = null;
private const string DEFAULT_LOGGER_NAME = "Logger";
/// <summary>
/// Prevents a default instance of the <see cref="LogWriter"/> class from being created.
/// </summary>
/// <param name="log4NetInstance">The log4net instance to be used.</param>
private LogWriter(ILog log4NetInstance)
{
_log4Net = log4NetInstance;
} /// <summary>
/// Gets a logger with the specified configuration name.
/// </summary>
/// <param name="configName">Name of the logger in the configuration.</param>
/// <returns>The logger obtained.</returns>
/// <exception cref="System.Configuration.ConfigurationException">Thrown when no logger with the specified configuration name was found.</exception>
public static LogWriter GetLogger(string configName)
{
var logger = LogManager.GetLogger(configName);
if (logger == null)
{
throw new ArgumentException(string.Format("No logger configuration named '{0}' was found in the configuration.", configName), "configName");
}
return new LogWriter(logger);
} /// <summary>
/// Gets the default.
/// </summary>
public static LogWriter Default
{
get
{
return GetLogger(DEFAULT_LOGGER_NAME);
}
} /// <summary>
/// Writes an information level logging message.
/// </summary>
/// <param name="message">The message to be written.</param>
public void WriteInfo(object message)
{
_log4Net.Info(message);
} /// <summary>
/// Writes a warning level logging message.
/// </summary>
/// <param name="message">The message to be written.</param>
public void WriteWarning(object message)
{
_log4Net.Warn(message);
} /// <summary>
/// Writes a warning level logging message.
/// </summary>
/// <param name="message">The message to be written.</param>
/// <param name="exception">The exception.</param>
public void WriteWarning(object message, System.Exception exception)
{
_log4Net.Warn(message, exception);
} /// <summary>
/// Writes the error.
/// </summary>
/// <param name="message">The message to be written.</param>
public void WriteError(object message)
{
_log4Net.Error(message);
} /// <summary>
/// Writes the error level logging message..
/// </summary>
/// <param name="message">The message to be written.</param>
/// <param name="exception">The exception.</param>
public void WriteError(object message, System.Exception exception)
{
_log4Net.Error(message, exception);
} /// <summary>
/// Writes the fatal error level logging message..
/// </summary>
/// <param name="message">The message to be written.</param>
public void WriteFatal(object message)
{
_log4Net.Fatal(message);
} /// <summary>
/// Writes the fatal error level logging message..
/// </summary>
/// <param name="message">The message to be written.</param>
/// <param name="exception">The exception.</param>
public void WriteFatal(object message, System.Exception exception)
{
_log4Net.Fatal(message, exception);
} public void DeleteLog()
{
string logDirPath = Path.Combine(Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location), "Log");
if (!Directory.Exists(logDirPath)) return;
int days =;
foreach (string filePath in Directory.GetFiles(logDirPath))
{
DateTime dt;
DateTime.TryParse(Path.GetFileNameWithoutExtension(filePath).Replace(@"Log\", "").Replace(".", "-"), out dt);
if (dt.AddDays(days).CompareTo(DateTime.Now) < )
{
File.Delete(filePath);
}
}
}
}
4、在Global.asax 文件cs 里面加入代码
protected void Application_Start () {
AreaRegistration.RegisterAllAreas();
FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
RouteConfig.RegisterRoutes(RouteTable.Routes);
WeixinConfig.Register();
log4net.Config.XmlConfigurator.Configure(new FileInfo("LogWriterConfig.xml"));
LogWriter.Default.WriteWarning("app started.");
}
protected void Application_End () {
LogWriter.Default.WriteWarning("app stopped.");
}
protected void Application_Error (object sender, EventArgs e) {
Exception ex = Server.GetLastError().GetBaseException();
StringBuilder str = new StringBuilder();
str.Append("\r\n.客户信息：");
string ip = "";
if (Request.ServerVariables.Get("HTTP_X_FORWARDED_FOR") != null) {
ip = Request.ServerVariables.Get("HTTP_X_FORWARDED_FOR").ToString().Trim();
} else {
ip = Request.ServerVariables.Get("Remote_Addr").ToString().Trim();
}
str.Append("\r\n\tIp:" + ip);
str.Append("\r\n\t浏览器:" + Request.Browser.Browser.ToString());
str.Append("\r\n\t浏览器版本:" + Request.Browser.MajorVersion.ToString());
str.Append("\r\n\t操作系统:" + Request.Browser.Platform.ToString());
str.Append("\r\n.错误信息：");
str.Append("\r\n\t页面：" + Request.Url.ToString());
str.Append("\r\n\t错误信息：" + ex.Message);
str.Append("\r\n\t错误源：" + ex.Source);
str.Append("\r\n\t异常方法：" + ex.TargetSite);
str.Append("\r\n\t堆栈信息：" + ex.StackTrace);
str.Append("\r\n--------------------------------------------------------------------------------------------------");
//创建路径
LogWriter.Default.WriteError(str.ToString());
}
5、项目 AssemblyInfo.cs 文件加入
[assembly: log4net.Config.XmlConfigurator(ConfigFile = "LogWriterConfig.xml", Watch = true)]
6、大功告成可以在开发使用了