NLog 不创建日志文件,通过代码配置
NLog not creating log files, configuration through code
使用 NLog v4.6.8。
正在通过代码配置如下:
public class Logger
{
public static void ConfigureLogger()
{
var config = new NLog.Config.LoggingConfiguration();
// target where to log to
string logFileName = @"\log.txt";
string path = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
var logfile = new NLog.Targets.FileTarget("logfile") { FileName = path + logFileName, KeepFileOpen = true, OpenFileCacheTimeout = 5 };
// delete the log file, if it exists.
string fullFilePath = path + logFileName;
if (File.Exists(fullFilePath))
{
File.Delete(fullFilePath);
}
// rules for mapping loggers to targets
// minimum and maximum log levels for logging targets
config.AddRule(NLog.LogLevel.Info, NLog.LogLevel.Fatal, logfile);
// apply config
NLog.LogManager.Configuration = config;
}
// create an instance of the logger for each class
public static NLog.Logger getLogger()
{
return NLog.LogManager.GetCurrentClassLogger();
}
// Flush and close down internal threads and timers.
public static void flushLogger()
{
NLog.LogManager.Shutdown();
}
}
典型用法如下:
Logger.Info("Doing something");
程序集目录中没有日志文件。为什么会这样?
发现的一些故障排除建议表明,一个常见的原因是 NLog 的配置文件没有被复制到输出目录。但是,项目或解决方案中没有配置文件。只有对所需 DLL 的引用。
乍一看,您的代码看起来是有效的。当然,请确保您会先致电 Logger.ConfigureLogger
。
我认为这是一个写权限错误。您可以尝试写入临时文件夹。您也可以启用内部日志(来自代码)
// In case of a console application:
NLog.Common.InternalLogger.LogToConsole = true;
// otherwise to file: recommended to use the temp dir
NLog.Common.InternalLogger.LogFile = "c:\temp\log-internal.txt";
// Also needed. Try info level or otherwise debug and trace to get more details
NLog.Common.InternalLogger.LogLevel = LogLevel.Info;
需要说明的是,不需要 XML 配置 - 这是可选的
使用 NLog v4.6.8。
正在通过代码配置如下:
public class Logger
{
public static void ConfigureLogger()
{
var config = new NLog.Config.LoggingConfiguration();
// target where to log to
string logFileName = @"\log.txt";
string path = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
var logfile = new NLog.Targets.FileTarget("logfile") { FileName = path + logFileName, KeepFileOpen = true, OpenFileCacheTimeout = 5 };
// delete the log file, if it exists.
string fullFilePath = path + logFileName;
if (File.Exists(fullFilePath))
{
File.Delete(fullFilePath);
}
// rules for mapping loggers to targets
// minimum and maximum log levels for logging targets
config.AddRule(NLog.LogLevel.Info, NLog.LogLevel.Fatal, logfile);
// apply config
NLog.LogManager.Configuration = config;
}
// create an instance of the logger for each class
public static NLog.Logger getLogger()
{
return NLog.LogManager.GetCurrentClassLogger();
}
// Flush and close down internal threads and timers.
public static void flushLogger()
{
NLog.LogManager.Shutdown();
}
}
典型用法如下:
Logger.Info("Doing something");
程序集目录中没有日志文件。为什么会这样?
发现的一些故障排除建议表明,一个常见的原因是 NLog 的配置文件没有被复制到输出目录。但是,项目或解决方案中没有配置文件。只有对所需 DLL 的引用。
乍一看,您的代码看起来是有效的。当然,请确保您会先致电 Logger.ConfigureLogger
。
我认为这是一个写权限错误。您可以尝试写入临时文件夹。您也可以启用内部日志(来自代码)
// In case of a console application:
NLog.Common.InternalLogger.LogToConsole = true;
// otherwise to file: recommended to use the temp dir
NLog.Common.InternalLogger.LogFile = "c:\temp\log-internal.txt";
// Also needed. Try info level or otherwise debug and trace to get more details
NLog.Common.InternalLogger.LogLevel = LogLevel.Info;
需要说明的是,不需要 XML 配置 - 这是可选的