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[英]How to configure or setup Log4Net with ASP.NET ( included MVC) C# on Visual Studio 2012 ~ ~
[英]How to configure log4net with VSTO project in visual studio
我試圖構建一個簡單的Outlook加載項。我在Visual Studio 2017中創建了一個VSTO項目。
通過Visual Studio創建項目時,解決方案中沒有app.config
或web.config
。 我想為此項目使用log4net。 我應該如何配置? 我試圖為該項目添加web.config或app.config。 但是我無法從配置文件中獲取值。 我認為該項目無法識別它們。 我無法使用ConfigurationManager.AppSettings["key"]
從配置文件中獲取值。
有誰知道如何在VSTO項目中使用log4net?
謝謝。
通過NuGet軟件包管理器安裝Log4Net。 然后在項目屬性中創建一個設置,例如asdf
(您可以使用Log4Net部分更新app.config文件后刪除該設置),然后它將為您創建app.config
。
這是我在大多數項目中使用的app.config
的配置。 我使用設置asdf
創建了一個新項目,並添加了我的標准Log4Net設置。
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<sectionGroup name="userSettings" type="System.Configuration.UserSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
<section name="ExcelAddIn1.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" allowExeDefinition="MachineToLocalUser" requirePermission="false" />
</sectionGroup>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"/>
</configSections>
<userSettings>
<ExcelAddIn1.Properties.Settings>
<setting name="asdf" serializeAs="String">
<value>asdf</value>
</setting>
</ExcelAddIn1.Properties.Settings>
</userSettings>
<log4net>
<appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender">
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger [%ndc] - %message%newline"/>
</layout>
</appender>
<appender name="FileAppender" type="log4net.Appender.FileAppender">
<file value="C:\Temp\MyOfficeAddIn.log"/>
<appendToFile value="true"/>
<lockingModel type="log4net.Appender.FileAppender+MinimalLock"/>
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date|%-5level|%message%newline"/>
</layout>
</appender>
<root>
<level value="ALL"/>
<appender-ref ref="FileAppender"/>
</root>
</log4net>
</configuration>
我通常創建一個名為ErrorHandler
的類並添加以下代碼。
using System;
using System.Linq;
using System.Text;
using System.Collections.Generic;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using Excel = Microsoft.Office.Interop.Excel;
using log4net;
using log4net.Config;
[assembly: log4net.Config.XmlConfigurator(Watch = true)]
然后我使用以下方法寫入日志文件
private static readonly ILog log = LogManager.GetLogger(typeof(ErrorHandler));
/// <summary>
/// Applies a new path for the log file by FileAppender name
/// </summary>
public static void SetLogPath()
{
XmlConfigurator.Configure();
log4net.Repository.Hierarchy.Hierarchy h = (log4net.Repository.Hierarchy.Hierarchy)LogManager.GetRepository();
string logFileName = System.IO.Path.Combine(Properties.Settings.Default.App_PathLocalData, AssemblyInfo.Product + ".log");
foreach (var a in h.Root.Appenders)
{
if (a is log4net.Appender.FileAppender)
{
if (a.Name.Equals("FileAppender"))
{
log4net.Appender.FileAppender fa = (log4net.Appender.FileAppender)a;
fa.File = logFileName;
fa.ActivateOptions();
}
}
}
}
/// <summary>
/// Create a log record to track which methods are being used.
/// </summary>
public static void CreateLogRecord()
{
try
{
// gather context
var sf = new System.Diagnostics.StackFrame(1);
var caller = sf.GetMethod();
var currentProcedure = caller.Name.Trim();
// handle log record
var logMessage = string.Concat(new Dictionary<string, string>
{
["PROCEDURE"] = currentProcedure,
["USER NAME"] = Environment.UserName,
["MACHINE NAME"] = Environment.MachineName
}.Select(x => $"[{x.Key}]=|{x.Value}|"));
log.Info(logMessage);
}
catch (Exception ex)
{
ErrorHandler.DisplayMessage(ex);
}
}
/// <summary>
/// Used to produce an error message and create a log record
/// <example>
/// <code lang="C#">
/// ErrorHandler.DisplayMessage(ex);
/// </code>
/// </example>
/// </summary>
/// <param name="ex">Represents errors that occur during application execution.</param>
/// <param name="isSilent">Used to show a message to the user and log an error record or just log a record.</param>
/// <remarks></remarks>
public static void DisplayMessage(Exception ex, Boolean isSilent = false)
{
// gather context
var sf = new System.Diagnostics.StackFrame(1);
var caller = sf.GetMethod();
var errorDescription = ex.ToString().Replace("\r\n", " "); // the carriage returns were messing up my log file
var currentProcedure = caller.Name.Trim();
var currentFileName = AssemblyInfo.GetCurrentFileName();
// handle log record
var logMessage = string.Concat(new Dictionary<string, string>
{
["PROCEDURE"] = currentProcedure,
["USER NAME"] = Environment.UserName,
["MACHINE NAME"] = Environment.MachineName,
["FILE NAME"] = currentFileName,
["DESCRIPTION"] = errorDescription,
}.Select(x => $"[{x.Key}]=|{x.Value}|"));
log.Error(logMessage);
// format message
var userMessage = new StringBuilder()
.AppendLine("Contact your system administrator. A record has been created in the log file.")
.AppendLine("Procedure: " + currentProcedure)
.AppendLine("Description: " + errorDescription)
.ToString();
// handle message
if (isSilent == false)
{
MessageBox.Show(userMessage, "Unexpected Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
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