C# 将异常写入MySQL数据库时发生Log4Net异常
记录异常时,它会正确显示在命令行中。但是,它不会写入数据库。其他参数已正确记录 在myC# 将异常写入MySQL数据库时发生Log4Net异常,c#,mysql,database,logging,log4net,C#,Mysql,Database,Logging,Log4net,记录异常时,它会正确显示在命令行中。但是,它不会写入数据库。其他参数已正确记录 在myapp.config中,异常配置如下: <commandText value="INSERT INTO logs (time, log_level, logger, message, exception, thread) VALUES (?time, ?log_level, ?logger, ?message, ?exception, ?thread)" /> 我启用了Log4Net调试,并获得以
app.config
中,异常配置如下:
<commandText value="INSERT INTO logs (time, log_level, logger, message, exception, thread) VALUES (?time, ?log_level, ?logger, ?message, ?exception, ?thread)" />
我启用了Log4Net调试,并获得以下输出:
log4net: Hierarchy Threshold []
A first chance exception of type 'System.FormatException' occurred in mscorlib.dll
log4net:ERROR [CustomAdoNetAppender] ErrorCode: GenericFailure. Exception while writing to database
12:25:37,902 [Game.Program] {exceptions} () ERROR: System.DivideByZeroException: Attempted to divide by zero.
at Game.Program.Init() in --:line 98
log4net:ERROR [CustomAdoNetAppender] ErrorCode: GenericFailure. Exception while writing to database
System.FormatException: Input string was not in a correct format.
at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
at System.String.System.IConvertible.ToInt32(IFormatProvider provider)
at System.Convert.ToInt32(Object value)
at MySql.Data.Types.MySqlInt32.MySql.Data.Types.IMySqlValue.WriteValue(MySqlPacket packet, Boolean binary, Object val, Int32 length)
at MySql.Data.MySqlClient.MySqlParameter.Serialize(MySqlPacket packet, Boolean binary, MySqlConnectionStringBuilder settings)
at MySql.Data.MySqlClient.Statement.SerialiSystem.FormatException: Input string was not in a correct format.
at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
at System.String.System.IConvertible.ToInt32(IFormatProvider provider)
at System.Convert.ToInt32(Object value)
at MySql.Data.Types.MySqlInt32.MySql.Data.Types.IMySqlValue.WriteValue(MySqlPacket packet, Boolean binary, Object val, Int32 length)
at MySql.Data.MySqlClient.MySqlParameter.Serialize(MySqlPacket packet, Boolean binary, MySqlConnectionStringBuilder settings)
at MySql.Data.MySqlClient.Statement.SerializeParameter(MySqlParameterCollection parameters, MySqlPacket packet, String parmName, Int32 parameterIndex)
at MySql.Data.MySqlClient.Statement.InternalBindParameters(String sql, MySqlParameterCollection parameters, MySqlPacket packet)
at MySql.Data.MySqlClient.Statement.BindParameters()
at MySql.Data.MySqlClient.Statement.Execute()
at MySql.Data.MySqlClient.PreparableStatement.Execute()
at MySql.Data.MySqlClient.MySqlCommand.ExecuteReader(CommandBehavior behavior)
at MySql.Data.MySqlClient.MySqlCommand.ExecuteReader()
at MySql.Data.MySqlClient.MySqlCommand.ExecuteNonQuery()
at log4net.Appender.AdoNetAppender.SendBuffer(IDbTransaction dbTran, LoggingEvent[] events)
at log4net.Appender.AdoNetAppender.SendBuffer(LoggingEvent[] events)
zeParameter(MySqlParameterCollection parameters, MySqlPacket packet, String parmName, Int32 parameterIndex)
at MySql.Data.MySqlClient.Statement.InternalBindParameters(String sql, MySqlParameterCollection parameters, MySqlPacket packet)
at MySql.Data.MySqlClient.Statement.BindParameters()
at MySql.Data.MySqlClient.Statement.Execute()
at MySql.Data.MySqlClient.PreparableStatement.Execute()
at MySql.Data.MySqlClient.MySqlCommand.ExecuteReader(CommandBehavior behavior)
at MySql.Data.MySqlClient.MySqlCommand.ExecuteReader()
at MySql.Data.MySqlClient.MySqlCommand.ExecuteNonQuery()
at log4net.Appender.AdoNetAppender.SendBuffer(IDbTransaction dbTran, LoggingEvent[] events)
at log4net.Appender.AdoNetAppender.SendBuffer(LoggingEvent[] events)
我发现了错误
显然,我在调用测试异常函数时添加了一些尚未初始化的全局变量。我将这些变量初始化为空字符串和零,结果成功了。您试图插入的值似乎有问题。我想你有一个数字类型的列。您可以发布您尝试为列插入的值吗。或者更好,所有绑定变量的值。更直接地询问,时间、日志级别、记录器、消息、异常、线程变量的值是什么?这些都是Log4Net的内部值。它们被正确地记录到数据库中,例外情况除外。哪些变量?
try
{
throw new DivideByZeroException();
}
catch (Exception e)
{
log.Error("", e);
}
log4net: Hierarchy Threshold []
A first chance exception of type 'System.FormatException' occurred in mscorlib.dll
log4net:ERROR [CustomAdoNetAppender] ErrorCode: GenericFailure. Exception while writing to database
12:25:37,902 [Game.Program] {exceptions} () ERROR: System.DivideByZeroException: Attempted to divide by zero.
at Game.Program.Init() in --:line 98
log4net:ERROR [CustomAdoNetAppender] ErrorCode: GenericFailure. Exception while writing to database
System.FormatException: Input string was not in a correct format.
at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
at System.String.System.IConvertible.ToInt32(IFormatProvider provider)
at System.Convert.ToInt32(Object value)
at MySql.Data.Types.MySqlInt32.MySql.Data.Types.IMySqlValue.WriteValue(MySqlPacket packet, Boolean binary, Object val, Int32 length)
at MySql.Data.MySqlClient.MySqlParameter.Serialize(MySqlPacket packet, Boolean binary, MySqlConnectionStringBuilder settings)
at MySql.Data.MySqlClient.Statement.SerialiSystem.FormatException: Input string was not in a correct format.
at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
at System.String.System.IConvertible.ToInt32(IFormatProvider provider)
at System.Convert.ToInt32(Object value)
at MySql.Data.Types.MySqlInt32.MySql.Data.Types.IMySqlValue.WriteValue(MySqlPacket packet, Boolean binary, Object val, Int32 length)
at MySql.Data.MySqlClient.MySqlParameter.Serialize(MySqlPacket packet, Boolean binary, MySqlConnectionStringBuilder settings)
at MySql.Data.MySqlClient.Statement.SerializeParameter(MySqlParameterCollection parameters, MySqlPacket packet, String parmName, Int32 parameterIndex)
at MySql.Data.MySqlClient.Statement.InternalBindParameters(String sql, MySqlParameterCollection parameters, MySqlPacket packet)
at MySql.Data.MySqlClient.Statement.BindParameters()
at MySql.Data.MySqlClient.Statement.Execute()
at MySql.Data.MySqlClient.PreparableStatement.Execute()
at MySql.Data.MySqlClient.MySqlCommand.ExecuteReader(CommandBehavior behavior)
at MySql.Data.MySqlClient.MySqlCommand.ExecuteReader()
at MySql.Data.MySqlClient.MySqlCommand.ExecuteNonQuery()
at log4net.Appender.AdoNetAppender.SendBuffer(IDbTransaction dbTran, LoggingEvent[] events)
at log4net.Appender.AdoNetAppender.SendBuffer(LoggingEvent[] events)
zeParameter(MySqlParameterCollection parameters, MySqlPacket packet, String parmName, Int32 parameterIndex)
at MySql.Data.MySqlClient.Statement.InternalBindParameters(String sql, MySqlParameterCollection parameters, MySqlPacket packet)
at MySql.Data.MySqlClient.Statement.BindParameters()
at MySql.Data.MySqlClient.Statement.Execute()
at MySql.Data.MySqlClient.PreparableStatement.Execute()
at MySql.Data.MySqlClient.MySqlCommand.ExecuteReader(CommandBehavior behavior)
at MySql.Data.MySqlClient.MySqlCommand.ExecuteReader()
at MySql.Data.MySqlClient.MySqlCommand.ExecuteNonQuery()
at log4net.Appender.AdoNetAppender.SendBuffer(IDbTransaction dbTran, LoggingEvent[] events)
at log4net.Appender.AdoNetAppender.SendBuffer(LoggingEvent[] events)