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最近有个项目,主要是Winform开发,但其中会使用wpf的用户控件,其都要使用log4net进行日志记录,在编译的过程中会报如下错误:
error MC1000: 未知的生成错误“因为没有预加载,所以无法解析程序集“log4net, Version=1.2.15.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a”的依赖项。在使用 ReflectionOnly API 时,必须通过 ReflectionOnlyAssemblyResolve 事件预加载或按需要加载依赖程序集。”
经排查,是因为log4net配置的问题,我日志类如下:
/************************************************************** * 类名:Log4Allen.cs * 描述:日志类,用于记录错误、异常、调试日志 * 创建者:Allen * 时间:Jan 9,2016 * * ***********************************************************/ using System; using System.Collections.Generic; using System.Linq; using System.Text; [assembly: log4net.Config.XmlConfigurator(Watch = true)] namespace QACDR.Common { /// <summary> /// 日志类 /// </summary> public class Log4Allen { /// <summary> /// 输出日志到Log4Net /// </summary> /// <param name="t"></param> /// <param name="ex"></param> #region static void WriteLog(Type t, Exception ex) public static void WriteLog(Type t, Exception ex) { log4net.ILog log = log4net.LogManager.GetLogger(t); log.Error("Error", ex); } #endregion /// <summary> /// 输出日志到Log4Net /// </summary> /// <param name="t"></param> /// <param name="msg"></param> #region static void WriteLog(Type t, string msg) public static void WriteLog(Type t, string msg) { log4net.ILog log = log4net.LogManager.GetLogger(t); log.Error(msg); } #endregion } }
问题就在于[assembly: log4net.Config.XmlConfigurator(Watch = true)],wpf编译会加载解析log4net,这样就会报错,然后就换成另外一种方式初始化log4net的配置,更改之后的方案如下:
/************************************************************** * 类名:Log4Allen.cs * 描述:日志类,用于记录错误、异常、调试日志 * 创建者:Allen * 时间:Jan 9,2016 * * ***********************************************************/ using System; using System.Collections.Generic; using System.Linq; using System.Text; //[assembly: log4net.Config.XmlConfigurator(Watch = true)] namespace QACDR.Common { /// <summary> /// 日志类 /// </summary> public class Log4Allen { /// <summary> /// 初始化日志 /// </summary> public static void InitLog() { log4net.Config.XmlConfigurator.ConfigureAndWatch( new System.IO.FileInfo("Config\\log4net.config")); } /// <summary> /// 输出日志到Log4Net /// </summary> /// <param name="t"></param> /// <param name="ex"></param> #region static void WriteLog(Type t, Exception ex) public static void WriteLog(Type t, Exception ex) { log4net.ILog log = log4net.LogManager.GetLogger(t); log.Error("Error", ex); } #endregion /// <summary> /// 输出日志到Log4Net /// </summary> /// <param name="t"></param> /// <param name="msg"></param> #region static void WriteLog(Type t, string msg) public static void WriteLog(Type t, string msg) { log4net.ILog log = log4net.LogManager.GetLogger(t); log.Error(msg); } #endregion } }
完美解决Winform与wpf同时使用log4net。
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原文地址:http://www.cnblogs.com/Jins/p/5224076.html