一个解决方案中的项目和单元测试的 log4net 配置 [英] log4net configuration for project and unit test in one solution
问题描述
我的解决方案包含一个 Windows 服务应用程序项目和一个单元测试项目，如下所示:
My solution contains a Windows Service application project and a Unit Test project, as shown here:
我已经在我的 Windows 服务应用程序项目中设置了 log4net，如下所示:
步骤 1) 我已将 log4net 的引用添加到我的 Windows 服务应用程序项目中.
Step 1) I've added the reference to log4net to my Windows Service application project.
步骤 2) 我的 app.config 如下所示:
Step 2) My app.config looks like this:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
</startup>
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,Log4net"/>
</configSections>
<log4net>
<appender name="LogFileAppender" type="log4net.Appender.RollingFileAppender">
<file value="log.log" />
<appendToFile value="true" />
<rollingStyle value="Size" />
<maxSizeRollBackups value="5" />
<maximumFileSize value="100KB" />
<staticLogFileName value="true" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date %level %logger - %message %exception%newline" />
</layout>
</appender>
<root>
<level value="ALL" />
<appender-ref ref="LogFileAppender" />
</root>
</log4net>
</configuration>
步骤 3) 我已将其添加到 Program.cs 主项:
Step 3) I've added this the Program.cs main:
using System;
using System.Collections.Generic;
using System.Linq;
using System.ServiceProcess;
using System.Text;
using System.Threading.Tasks;
[assembly: log4net.Config.XmlConfigurator(Watch = true)]
namespace MyAppService
{
static class Program
{
/// <summary>
/// The main entry point for the application.
/// </summary>
static void Main()
{
log4net.Config.XmlConfigurator.Configure();
步骤 4) 在我记录的课程中，我添加了以下内容:
Step 4) In my classes where I am logging I've added this:
private static ILog logger = LogManager.GetLogger(typeof(Reader));
步骤 5) 我添加了这样的日志语句:
Step 5) I've added logging statements like this:
logger.Info("Data Read Completed Successfully.");
<小时>
-----------------------------单元测试项目设置----------------------------
<小时>我已经在我的单元测试项目中设置了 log4net，如下所示:
步骤 1) 我已将 log4net 的引用添加到我的单元测试项目中.
Step 1) I've added the reference to log4net to my Unit Test project.
步骤 2) 我添加了一个 app.config 文件，如下所示:
Step 2) I've added a app.config file that looks like this:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
</startup>
<appSettings>
<add key="log4net.Internal.Debug" value="true"/>
</appSettings>
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net"/>
</configSections>
<log4net>
<!-- A1 is set to be a ConsoleAppender -->
<appender name="A1" type="log4net.Appender.FileAppender">
<file value="logfile.txt" />
<appendToFile value="false" />
<!-- A1 uses PatternLayout -->
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%-4timestamp [%thread] %-5level %logger %ndc - %message%newline" />
</layout>
</appender>
<!-- Set root logger level to DEBUG and its only appender to A1 -->
<root>
<level value="DEBUG" />
<appender-ref ref="A1" />
</root>
</log4net>
</configuration>
第 3 步) 我已将此添加到 ForecastIOTest.cs 单元测试类:
Step 3) I've added this the ForecastIOTest.cs unit test class:
using log4net;
using log4net.Config;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using System;
using System.Collections.Generic;
using WeatherAppService;
[assembly: log4net.Config.XmlConfigurator(Watch = true)]
namespace WeatherAppTests
{
[TestClass]
public class ForecastIOTest
{
private static ILog logger = LogManager.GetLogger(typeof(WeatherController));
[AssemblyInitialize]
public static void Configure(TestContext tc)
{
log4net.Config.XmlConfigurator.Configure();
}
步骤 4) 在我记录的测试类中，我添加了这个:
Step 4) In my test class where I am logging I've added this:
private static ILog logger = LogManager.GetLogger(typeof(ForecastIOTest));
步骤 5) 我添加了这样的日志语句:
Step 5) I've added logging statements like this:
logger.Info("This is a test.");
<小时>
-------------------------------------问题------------------------------------
<小时>现在，我收到的错误表明我有多个 configSections 元素:一个在服务应用程序中，另一个在测试应用程序中.
log4net:ERROR Exception while reading ConfigurationSettings. Check your .config file is well formed XML.
System.Configuration.ConfigurationErrorsException: Configuration system failed to initialize ---> System.Configuration.ConfigurationErrorsException: Only one <configSections> element allowed per config file and if present must be the first child of the root <configuration> element. (C:\Users\pdl\Documents\Visual Studio 2013\Projects\WeatherAppService\WeatherAppTests\bin\Debug\WeatherAppTests.dll.config line 9)
但如果我从测试应用程序中删除 configSections，我会收到此错误:
log4net:ERROR Exception while reading ConfigurationSettings. Check your .config file is well formed XML.
System.Configuration.ConfigurationErrorsException: Configuration system failed to initialize ---> System.Configuration.ConfigurationErrorsException: Unrecognized configuration section log4net. (C:\Users\pdl\Documents\Visual Studio 2013\Projects\WeatherAppService\WeatherAppTests\bin\Debug\WeatherAppTests.dll.config line 7)
<小时>
-------------------------------------问题------------------------------------
<小时>有谁知道如何设置 log4net，以便我可以运行单元测试，它运行服务应用程序并写入我的日志文件?或者，鉴于我所做的一切，有人可以告诉我什么是不正确或不完整的吗?
-------------------------------------Question------------------------------------
Does anybody know how to set up log4net, so I can run the unit test, which runs the service app and get my log files written to? Or, given everything I have done, can someone please tell me what is incorrect or incomplete?
推荐答案
该错误是因为，configSection 应该是配置文件中
The error is because, configSection should be the first element after <Configuration> in the config file.
<configuration>
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,Log4net"/>
</configSections>
<ConfigSections> element specifies the configuration and handler declaration, so this must be the first child of <Configuration>
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