C# 如何在Asp.net core 2.0中使用log4net
如本文所述,我在asp.net core 2.0应用程序中配置了C# 如何在Asp.net core 2.0中使用log4net,c#,asp.net,log4net,asp.net-core-2.0,log4net-configuration,C#,Asp.net,Log4net,Asp.net Core 2.0,Log4net Configuration,如本文所述,我在asp.net core 2.0应用程序中配置了log4net program.cs public static void Main(string[] args) { var logRepository = LogManager.GetRepository(Assembly.GetEntryAssembly()); XmlConfigurator.Configure(logRepository, new FileInfo("log4net.config"));
log4net
program.cs
public static void Main(string[] args)
{
var logRepository = LogManager.GetRepository(Assembly.GetEntryAssembly());
XmlConfigurator.Configure(logRepository, new FileInfo("log4net.config"));
BuildWebHost(args).Run();
}
家庭控制器
public class HomeController : Controller
{
private static readonly log4net.ILog log = log4net.LogManager.GetLogger(typeof(HomeController));
public IActionResult Error()
{
log.Info("Hello logging world!");
return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier });
}
}
log4net.config
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<log4net>
<root>
<level value="ALL" />
<appender-ref ref="RollingFile" />
</root>
<appender name="RollingFile" type="log4net.Appender.FileAppender">
<file value="C:\Temp\app.log" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%-5p %d{hh:mm:ss} %message%newline" />
</layout>
</appender>
</log4net>
</configuration>
真倒霉!,我没有看到在中生成的任何文件<代码>C:\Temp\app.log目录。会是什么错误?如何为asp.net core 2.0配置
log4net
我能够使用以下代码成功地记录文件
public static void Main(string[] args)
{
XmlDocument log4netConfig = new XmlDocument();
log4netConfig.Load(File.OpenRead("log4net.config"));
var repo = log4net.LogManager.CreateRepository(Assembly.GetEntryAssembly(),
typeof(log4net.Repository.Hierarchy.Hierarchy));
log4net.Config.XmlConfigurator.Configure(repo, log4netConfig["log4net"]);
BuildWebHost(args).Run();
}
网站根目录中的log4net.config
<?xml version="1.0" encoding="utf-8" ?>
<log4net>
<appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
<lockingModel type="log4net.Appender.FileAppender+MinimalLock"/>
<file value="C:\Temp\" />
<datePattern value="yyyy-MM-dd.'txt'"/>
<staticLogFileName value="false"/>
<appendToFile value="true"/>
<rollingStyle value="Date"/>
<maxSizeRollBackups value="100"/>
<maximumFileSize value="15MB"/>
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level App %newline %message %newline %newline"/>
</layout>
</appender>
<root>
<level value="ALL"/>
<appender-ref ref="RollingLogFileAppender"/>
</root>
</log4net>
您只需将iLogger工厂
传递给启动
类,然后调用
loggerFactory.AddLog4Net();
并且有一个配置。因此,您不必编写任何锅炉铭牌代码
根据Irfan的回答,我在OSX上使用.NET Core 2.1.300进行了以下XML配置,它正确地记录并附加到
/log
文件夹以及控制台。注意log4net.config
必须存在于解决方案根目录中(而在我的情况下,我的应用程序根目录是一个子文件夹)
由于某些原因,通过log4netConfig[“log4net”]
访问XMLDocument时,找不到log4net节点。您需要安装NuGet软件包并将log4net.config文件添加到应用程序中。那么这应该是可行的:
public class Program
{
private readonly ILogger<Program> logger;
public Program()
{
var services = new ServiceCollection()
.AddLogging(logBuilder => logBuilder.SetMinimumLevel(LogLevel.Debug))
.BuildServiceProvider();
logger = services.GetService<ILoggerFactory>()
.AddLog4Net()
.CreateLogger<Program>();
}
static void Main(string[] args)
{
Program program = new Program();
program.Run();
Console.WriteLine("\n\nPress any key to continue...");
Console.ReadKey();
}
private void Run()
{
logger.LogInformation("Logging is working");
}
}
公共类程序
{
专用只读ILogger记录器;
公共计划()
{
var services=newservicecolection()
.AddLogging(logBuilder=>logBuilder.SetMinimumLevel(LogLevel.Debug))
.BuildServiceProvider();
logger=services.GetService()
.AddLog4Net()文件
.CreateLogger();
}
静态void Main(字符串[]参数)
{
程序=新程序();
program.Run();
Console.WriteLine(“\n\n按任意键继续…”);
Console.ReadKey();
}
私家车
{
logger.LogInformation(“日志正在工作”);
}
}
仍在寻找解决方案吗?我从这里得到了我的
我所要做的就是在“程序类”中的“publicstaticvoidmain”方法的顶部添加这两行代码
是的,您必须添加:
Install-Package Log4Net_Logging -Version 1.0.0
然后添加包含以下信息的log4net.config(请编辑它以匹配您的设置):
然后,将以下代码添加到控制器中(这是一个示例,请在将其添加到控制器之前对其进行编辑):
public values控制人()
{
SetUp(Assembly.GetEntryAssembly(),“log4net.config”);
}
//获取api/值
[HttpGet]
公共行动结果获取()
{
LogFourNet.Info(这是“信息日志”);
Debug(这是“调试日志”);
LogFourNet.Error(这是“错误日志”);
返回新字符串[]{“value1”,“value2”};
}
然后调用相关的控制器操作(使用上述示例,使用HTTP Get调用/Values/Get
),您将收到与以下内容匹配的输出:
2019-06-05 19:58:45103[9]信息-[Log4NetLogging_Project.Controllers.ValuesController.Get:23]-这是信息日志
我已经找出了问题所在,loggerFactory.AddLog4Net()中的名称空间含糊不清。下面是我如何将log4Net添加到我的Asp.Net核心项目中的一个简短摘要
我能够用以下方法作出回应:
1-Install-Package log4net
首先,我使用以下代码创建数据库和表:
CREATE DATABSE Log4netDb
CREATE TABLE [dbo].[Log] (
[Id] [int] IDENTITY (1, 1) NOT NULL,
[Date] [datetime] NOT NULL,
[Thread] [varchar] (255) NOT NULL,
[Level] [varchar] (50) NOT NULL,
[Logger] [varchar] (255) NOT NULL,
[Message] [varchar] (4000) NOT NULL,
[Exception] [varchar] (2000) NULL
)
第二,,
我在程序中创建log4net.config文件。
这是一个简单的配置,没有对日志消息进行自定义:
<?xml version="1.0" encoding="utf-8" ?>
<log4net debug="true">
<!-- definition of the RollingLogFileAppender goes here -->
<appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
<file value="Logs/WebApp.log" />
<appendToFile value="true" />
<rollingStyle value="Size" />
<maxSizeRollBackups value="10" />
<maximumFileSize value="10MB" />
<staticLogFileName value="true" />
<lockingModel type="log4net.Appender.FileAppender+MinimalLock" />
<layout type="log4net.Layout.PatternLayout">
<!-- Format is [date/time] [log level] [thread] message-->
<conversionPattern value="[%date] [%level] [%thread] %m%n" />
</layout>
</appender>
<appender name="AdoNetAppender" type="MicroKnights.Logging.AdoNetAppender, MicroKnights.Log4NetAdoNetAppender">
<bufferSize value="1" />
<connectionType value="System.Data.SqlClient.SqlConnection, System.Data" />
<connectionStringName value="log4net" />
<connectionStringFile value="appsettings.json" />
<commandText value="INSERT INTO Log ([Date],[Thread],[Level],[Logger],[Message]) VALUES (@log_date, @thread, @log_level, @logger, @message)" />
<parameter>
<parameterName value="@log_date" />
<dbType value="DateTime" />
<layout type="log4net.Layout.RawTimeStampLayout" />
</parameter>
<parameter>
<parameterName value="@thread" />
<dbType value="String" />
<size value="255" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%thread" />
</layout>
</parameter>
<parameter>
<parameterName value="@log_level" />
<dbType value="String" />
<size value="50" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%level" />
</layout>
</parameter>
<parameter>
<parameterName value="@logger" />
<dbType value="String" />
<size value="255" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%logger" />
</layout>
</parameter>
<parameter>
<parameterName value="@message" />
<dbType value="String" />
<size value="4000" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%message" />
</layout>
</parameter>
<parameter>
<parameterName value="@exception" />
<dbType value="String" />
<size value="2000" />
<layout type="log4net.Layout.ExceptionLayout" />
</parameter>
</appender>
<root>
<level value="ALL" />
<appender-ref ref="RollingLogFileAppender" />
<appender-ref ref="AdoNetAppender" />
</root>
</log4net>
最后,,
使用这些命令可以享受登录的乐趣
public class ValuesController : Controller
{
private static readonly ILog log = LogManager.GetLogger(typeof(ValuesController));
[HttpPost]
public async Task<IActionResult> Login(string userName, string password)
{
log.Info("Action start");
// More code here ...
log.Info("Action end");
}
// More code here...
}
公共类值控制器:控制器
{
private static readonly ILog log=LogManager.GetLogger(typeof(valuescocontroller));
[HttpPost]
公共异步任务登录(字符串用户名、字符串密码)
{
日志信息(“操作开始”);
//更多代码在这里。。。
日志信息(“操作结束”);
}
//更多代码在这里。。。
}
祝你好运。我正在将.Net Framework控制台应用程序移植到.Net Core,发现在某些情况下无法创建日志文件存在类似问题 当使用“CreateRepository”时,与.net f
2-Install-Package MicroKnights.Log4NetAdoNetAppender
3-Install-Package System.Data.SqlClient
CREATE DATABSE Log4netDb
CREATE TABLE [dbo].[Log] (
[Id] [int] IDENTITY (1, 1) NOT NULL,
[Date] [datetime] NOT NULL,
[Thread] [varchar] (255) NOT NULL,
[Level] [varchar] (50) NOT NULL,
[Logger] [varchar] (255) NOT NULL,
[Message] [varchar] (4000) NOT NULL,
[Exception] [varchar] (2000) NULL
)
<?xml version="1.0" encoding="utf-8" ?>
<log4net debug="true">
<!-- definition of the RollingLogFileAppender goes here -->
<appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
<file value="Logs/WebApp.log" />
<appendToFile value="true" />
<rollingStyle value="Size" />
<maxSizeRollBackups value="10" />
<maximumFileSize value="10MB" />
<staticLogFileName value="true" />
<lockingModel type="log4net.Appender.FileAppender+MinimalLock" />
<layout type="log4net.Layout.PatternLayout">
<!-- Format is [date/time] [log level] [thread] message-->
<conversionPattern value="[%date] [%level] [%thread] %m%n" />
</layout>
</appender>
<appender name="AdoNetAppender" type="MicroKnights.Logging.AdoNetAppender, MicroKnights.Log4NetAdoNetAppender">
<bufferSize value="1" />
<connectionType value="System.Data.SqlClient.SqlConnection, System.Data" />
<connectionStringName value="log4net" />
<connectionStringFile value="appsettings.json" />
<commandText value="INSERT INTO Log ([Date],[Thread],[Level],[Logger],[Message]) VALUES (@log_date, @thread, @log_level, @logger, @message)" />
<parameter>
<parameterName value="@log_date" />
<dbType value="DateTime" />
<layout type="log4net.Layout.RawTimeStampLayout" />
</parameter>
<parameter>
<parameterName value="@thread" />
<dbType value="String" />
<size value="255" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%thread" />
</layout>
</parameter>
<parameter>
<parameterName value="@log_level" />
<dbType value="String" />
<size value="50" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%level" />
</layout>
</parameter>
<parameter>
<parameterName value="@logger" />
<dbType value="String" />
<size value="255" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%logger" />
</layout>
</parameter>
<parameter>
<parameterName value="@message" />
<dbType value="String" />
<size value="4000" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%message" />
</layout>
</parameter>
<parameter>
<parameterName value="@exception" />
<dbType value="String" />
<size value="2000" />
<layout type="log4net.Layout.ExceptionLayout" />
</parameter>
</appender>
<root>
<level value="ALL" />
<appender-ref ref="RollingLogFileAppender" />
<appender-ref ref="AdoNetAppender" />
</root>
</log4net>
public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
WebHost.CreateDefaultBuilder(args)
.ConfigureLogging(logging =>
{
// clear default logging providers
logging.ClearProviders();
logging.AddConsole();
logging.AddDebug();
logging.AddEventLog();
// add more providers here
})
.UseStartup<Startup>();
{
"connectionStrings": {
"log4net": "Server=MICKO-PC;Database=Log4netDb;Trusted_Connection=True;MultipleActiveResultSets=true"
}
}
public class ValuesController : Controller
{
private static readonly ILog log = LogManager.GetLogger(typeof(ValuesController));
[HttpPost]
public async Task<IActionResult> Login(string userName, string password)
{
log.Info("Action start");
// More code here ...
log.Info("Action end");
}
// More code here...
}
GlobalContext.Properties["LogName"] = LogName;
var loggerRepository = LogManager.CreateRepository(LogName);
XmlConfigurator.Configure(loggerRepository);
var loggerRepository = LogManager.CreateRepository(LogName);
XmlConfigurator.Configure(loggerRepository,new FileInfo("log4net.config"));
var hierarchy = (Hierarchy) loggerRepository;
var appender = (RollingFileAppender)hierarchy.Root.GetAppender("RollingLogFileAppender");
appender.File = Path.Combine(Directory.GetCurrentDirectory(), "logs", $"{LogName}.log");