public class LogHelper
{
static string strLogCOMPath = Directory.GetCurrentDirectory() + "\\Log\\" + DateTime.Now.ToString("yyyyMMdd") + "LogJH.txt";
static string strLogErrorPath = Directory.GetCurrentDirectory() + "\\Log\\" + DateTime.Now.ToString("yyyyMMdd") + "ErrorLog.txt";
/// <summary>
/// 记录交互日志
/// </summary>
/// <param name="strLogContent">要记录的内容</param>
/// <param name="bWriteFirstLine">是否要添加第一行日志title</param>
/// <param name="strConentTitle">title内容</param>
public static void AddCOMLog(string strLogContent, bool bWriteFirstLine, string strConentTitle)
{
string time1;
time1 = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff");
if (!File.Exists(strLogCOMPath))
{
using (FileStream fs = new FileStream(strLogCOMPath, FileMode.Create, FileAccess.Write))
{
if (bWriteFirstLine)
{
StringBuilder sb1 = new StringBuilder();
sb1.Append("时间").Append(",").Append(strConentTitle).Append(",").Append("\n");
string str = sb1.ToString();
byte[] buffer = Encoding.Default.GetBytes(str);
fs.Write(buffer, 0, buffer.Length);
}
}
}
using (StreamWriter sw = new StreamWriter(strLogCOMPath, true, Encoding.Default))
{
StringBuilder sb = new StringBuilder();
sb.Append(time1).Append(",").Append(strLogContent).Append(",");
sw.WriteLine(sb);
}
}
/// <summary>
/// 记录错误日志
/// </summary>
/// <param name="strLogContent">要记录的内容</param>
/// <param name="bWriteFirstLine">是否要添加第一行日志title</param>
/// <param name="strConentTitle">title内容</param>
public static void AddErrorLog(string strLogContent, bool bWriteFirstLine, string strConentTitle)
{
string time1;
time1 = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff");
if (!File.Exists(strLogErrorPath))
{
using (FileStream fs = new FileStream(strLogErrorPath, FileMode.Create, FileAccess.Write))
{
if (bWriteFirstLine)
{
StringBuilder sb1 = new StringBuilder();
sb1.Append("时间").Append(",").Append(strConentTitle).Append(",").Append("\n");
string str = sb1.ToString();
byte[] buffer = Encoding.Default.GetBytes(str);
fs.Write(buffer, 0, buffer.Length);
}
}
}
using (StreamWriter sw = new StreamWriter(strLogErrorPath, true, Encoding.Default))
{
StringBuilder sb = new StringBuilder();
sb.Append(time1).Append(",").Append(strLogContent).Append(",");
sw.WriteLine(sb);
}
}
static readonly log4net.ILog loginfo = log4net.LogManager.GetLogger("loginfo");
static readonly log4net.ILog logerror = log4net.LogManager.GetLogger("logerror");
static string isAddLog = System.Configuration.ConfigurationSettings.AppSettings.Get("isAddLog");
/// <summary>
/// 仅向日志中增加信息
/// </summary>
/// <param name="info"></param>
public static void WriteLog(string info)
{
if (isAddLog == "0")
return;
if (loginfo.IsInfoEnabled)
{
loginfo.Info(info);
}
}
/// <summary>
/// 记录错误日志
/// </summary>
/// <param name="ex">错误异常</param>
/// <param name="info">异常信息</param>
public static void WriteLog(Exception ex, string info)
{
if (logerror.IsErrorEnabled)
{
logerror.Error(info, ex);
}
}
}
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<log4net>
<!--错误日志类-->
<logger name="logerror">
<!--日志类的名字-->
<level value="ALL" />
<!--定义记录的日志级别-->
<appender-ref ref="ErrorAppender" />
<!--记录到哪个介质中去-->
</logger>
<!--信息日志类-->
<logger name="loginfo">
<level value="ALL" />
<appender-ref ref="InfoAppender" />
</logger>
<!--错误日志附加介质-->
<appender name="ErrorAppender" type="log4net.Appender.RollingFileAppender">
<!-- name属性指定其名称,type则是log4net.Appender命名空间的一个类的名称,意思是,指定使用哪种介质-->
<param name="File" value="Log\\LogError\\" />
<!--日志输出到exe程序这个相对目录下-->
<param name="AppendToFile" value="true" />
<!--输出的日志不会覆盖以前的信息-->
<param name="MaxSizeRollBackups" value="100" />
<!--备份文件的个数-->
<param name="MaxFileSize" value="10240" />
<!--当个日志文件的最大大小-->
<param name="StaticLogFileName" value="false" />
<!--是否使用静态文件名-->
<param name="DatePattern" value="yyyyMMdd".html"" />
<!--日志文件名-->
<param name="RollingStyle" value="Date" />
<!--文件创建的方式，这里是以Date方式创建-->
<!--错误日志布局-->
<layout type="log4net.Layout.PatternLayout">
<param name="ConversionPattern" value="<HR COLOR=red>%n异常时间：%d [%t] <BR>%n异常级别：%-5p <BR>%n异 常 类：%c [%x] <BR>%n%m <BR>%n <HR Size=1>" />
</layout>
</appender>
<!--信息日志附加介质-->
<appender name="InfoAppender" type="log4net.Appender.RollingFileAppender">
<param name="File" value="Log\\LogInfo\\" />
<param name="AppendToFile" value="true" />
<param name="MaxFileSize" value="10240" />
<param name="MaxSizeRollBackups" value="100" />
<param name="StaticLogFileName" value="false" />
<param name="DatePattern" value="yyyyMMdd".html"" />
<param name="RollingStyle" value="Date" />
<!--信息日志布局-->
<layout type="log4net.Layout.PatternLayout">
<param name="ConversionPattern" value="<HR COLOR=blue>%n日志时间：%d [%t] <BR>%n日志级别：%-5p <BR>%n日 志 类：%c [%x] <BR>%n%m <BR>%n <HR Size=1>" />
</layout>
</appender>
</log4net>
</configuration>
引用添加Log4net.DLL
使用日志时，注意2点
1.目标框架不能使用Client Profile，否则无法找到Log4net.DLL。
2.在Assembly程序集需要添加以下代码，否则无法写日志。
[assembly: log4net.Config.XmlConfigurator(ConfigFile = "log4net.config", ConfigFileExtension = "config", Watch = true)]//让程序启动时是找到Log4net.config配置文件