Nlog记录日志

心已赠人 2022-04-17 03:15 331阅读 0赞

<?xml version="1.0" ?>
    
    
    
    <nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          autoReload="true">
      
      <targets>
        
        
    
        
        <target name="file" xsi:type="AsyncWrapper" queueLimit="5000" overflowAction="Discard">
          <target xsi:type="File" fileName="${basedir}/logs/${shortdate}.log" layout="${longdate} ${level:uppercase=true} ${event-context:item=Action} ${message} ${event-context:item=Amount} ${stacktrace}" />      
        </target>
    
        
        <target name="db" xsi:type="AsyncWrapper" queueLimit="5000" overflowAction="Discard">
          <target type="Database" dbProvider="mssql" connectionString="Data Source=.\SQLEXPRESS;Initial Catalog=EFinance;Persist Security Info=True;User ID=sa;Password=123456;">
    
            <commandText>
              INSERT INTO Log(Timestamp,Level,Message,Action,Amount,StackTrace) VALUES(@time_stamp, @level, @message, @action, @amount, @stacktrace);
            </commandText>
    
            
            <parameter name="@time_stamp" layout="${date}" />
            <parameter name="@level" layout="${level:uppercase=true}" />
            <parameter name="@message" layout="${message}" />
            <parameter name="@action" layout="${event-context:item=Action}" />
            <parameter name="@amount" layout="${event-context:item=Amount}" />
            <parameter name="@stacktrace" layout="${stacktrace}" />
          </target>
        </target>
    
        
        <target name="debugger" xsi:type="Debugger" layout="NLog: ${date:format=HH\:mm\:ss} | ${level:uppercase=true:padding=-5} | ${message}" />
      </targets>
    
      <rules>
        
        <logger name="*" minlevel="Trace" writeTo="debugger" />
        
        <logger name="*" minlevel="Info" writeTo="db" />
        
        <logger name="*" minlevel="Debug" writeTo="file" />    
      </rules>
    </nlog>

NLog.config 新建这个文件，将以上paste到这个文件，

简单两句就可以使用NLog了：

NLog.Logger logger = Nlog.LogManager.GetCurrentClassLogger();  
logger.Fatal("发生致命错误");  
logger.Warn("警告信息");

using nlog;