标签:XML creat char cal sage bubuko dir conf class
废话不多说直接进入正题。
1、在项目中加入Nlog的应用
安装后会出现两个文件
2、我们打开Nlog.config配置文件设置日志记录
<?xml version="1.0" encoding="utf-8" ?>
<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<!--
See https://github.com/nlog/nlog/wiki/Configuration-file
for information on customizing logging rules and outputs.
-->
<!-- 定义变量
projectName 项目名称
logDirectory 文件路径
-->
<variable name="projectName" value="test"/>
<variable name="logDirectory" value="F:/nlog/${projectName}/${shortdate}"/>
<targets>
<!-- 定义输出模板:
type="File":这个记录方式为文件类型
fileName="${logDirectory}/All.log":表示输出到文件All.log中
layout="...":输出文件中错误的显示格式
${logDirectory}:为上述定义的路径
${longdate}:输出长日期 yyyy-MM-dd HH:mm:ss.ffff(例:2013-01-31 14:49:21.2120)
${level}:错误等级(由低到高为Trace,Debug,Info,Warn,Error,Fatal)
${newline}:输出 新的一行
${stacktrace}:输出 堆栈信息
${callsite:className=True:fileName=True:includeSourcePath=True:methodName=True}:输出 命名空间.类名.方法名(文件路径:行号)
${message}:输出错误信息-->
<target xsi:type="File" name="logfiles" fileName="${logDirectory}/${shortdate}.log" layout="${longdate} ${level} ${message} ${stacktrace} ${callsite:className=True:fileName=True:includeSourcePath=True:methodName=True}${newline}" />
</targets>
<rules>
<!-- 定义输出日志:
name="*":记录所有信息
minlevel="Trace":记录的最低错误级别为Trace
writeTo="logfiles":日志写入logfiles的target中-->
<logger name="*" minlevel="Trace" writeTo="logfiles" />
</rules>
</nlog>
3、用简单的控制台程序测试一下
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using NLog;
namespace NlogDemo
{
class Program
{
private static readonly Logger Logger = LogManager.GetCurrentClassLogger();
static void Main(string[] args)
{
WriteLog();
}
public static void WriteLog()
{
Logger.Log(LogLevel.Error, "nlog test error");
}
}
}
F5运行之后在我设置的路径下会有个以时间命名的log文件
日志内容
日志记录的内容与你在配置文件配置的fileName格式有关
4、以上的是文件的记录方式,下面我们来看数据库的记录方式
<?xml version="1.0" encoding="utf-8" ?>
<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<!--
See https://github.com/nlog/nlog/wiki/Configuration-file
for information on customizing logging rules and outputs.
-->
<!-- 定义变量
projectName 项目名称
logDirectory 文件路径
-->
<variable name="projectName" value="test"/>
<variable name="logDirectory" value="F:/nlog/${projectName}/${shortdate}"/>
<targets>
<!-- 定义输出到MySQL中:
type="database":这个记录方式是数据库
dbProvider="MySql.Data.MySqlClient":使用MySQL的连接方式
connectionString="":数据库的连接字符串
commandText="insert into Logs(CreateDate,LogLevel,CallSite,Massage,StackTrace) values (@CreateDate,@LogLevel,@CallSite,@Massage,@StackTrace)":insert语句
<target xsi:type="Database" name="logdatabase" dbProvider="MySql.Data.MySqlClient"
connectionString="Server=127.0.0.1;Database=mytestdatabase;Uid=root;Pwd=123;"
commandText="insert into Logs(create_time,loglevel,callsite,massage,stacktrace) values (@create_time,@loglevel,@callsite,@massage,@stacktrace)">
<!-- 对应到insert语句的参数的值-->
<parameter name="create_time" layout="${longdate}" />
<parameter name="loglevel" layout="${level}" />
<parameter name="callsite" layout="${callsite:className=True:fileName=True:includeSourcePath=True:methodName=True}" />
<parameter name="massage" layout="${message}" />
<parameter name="stacktrace" layout="${stacktrace}" />
</target>
</targets>
<rules>
<!-- 定义输出日志:
name="*":记录所有信息
minlevel="Trace":记录的最低错误级别为Trace
writeTo="logdatabase":日志写入数据库logdatabase中-->
<logger name="*" minlevel="Trace" writeTo="logdatabase" />
</rules>
</nlog>
sql语句
CREATE TABLE `mytestdatabase`.`Logs` (
`id` INT(11) NOT NULL AUTO_INCREMENT,
`create_time` DATETIME NOT NULL,
`loglevel` VARCHAR(5) NOT NULL,
`callsite` VARCHAR(5000) DEFAULT NULL,
`massage` LONGTEXT,
`stacktrace` VARCHAR(5000) DEFAULT NULL,
PRIMARY KEY (`ID`)
) ENGINE=INNODB AUTO_INCREMENT=10 DEFAULT CHARSET=utf8;
控制台程序还是上面的代码直接F5运行
数据库表中的数据
当然<targets>下面可以包含很多个target 我们也可以把日志文件同时写到文件和数据库表中
<?xml version="1.0" encoding="utf-8" ?>
<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<!--
See https://github.com/nlog/nlog/wiki/Configuration-file
for information on customizing logging rules and outputs.
-->
<!-- 定义变量
projectName 项目名称
logDirectory 文件路径
-->
<variable name="projectName" value="test"/>
<variable name="logDirectory" value="F:/nlog/${projectName}/${shortdate}"/>
<targets>
<target xsi:type="File" name="logfiles" fileName="${logDirectory}/${shortdate}.log" layout="${longdate} ${level} ${message} ${stacktrace} ${callsite:className=True:fileName=True:includeSourcePath=True:methodName=True}${newline}" />
<target xsi:type="Database" name="logdatabase" dbProvider="MySql.Data.MySqlClient"
connectionString="Server=127.0.0.1;Database=mytestdatabase;Uid=root;Pwd=123;"
commandText="insert into Logs(create_time,loglevel,callsite,massage,stacktrace) values (@create_time,@loglevel,@callsite,@massage,@stacktrace)">
<parameter name="create_time" layout="${longdate}" />
<parameter name="loglevel" layout="${level}" />
<parameter name="callsite" layout="${callsite:className=True:fileName=True:includeSourcePath=True:methodName=True}" />
<parameter name="massage" layout="${message}" />
<parameter name="stacktrace" layout="${stacktrace}" />
</target>
</targets>
<rules>
<logger name="*" minlevel="Trace" writeTo="logfiles,logdatabase" />
</rules>
</nlog>
这里只是nlog日常简单的应用,更加详细的应用请参考
NLog Doc http://www.nlog-project.org/
标签:XML creat char cal sage bubuko dir conf class
原文地址:https://www.cnblogs.com/hnsongbiao/p/8858181.html