Question

我需要将自定义数据记录到Db，我遵循本教程：http://stephenjamescode.blogspot.it/2014/01/logging-custom-objects-and-fields-with.html

我实施了ReflectionPatternConverter 这使我能够记录我需要的任何自定义数据。这是代码：

ReflectionPatternConverter

    public class ReflectionPatternConverter : PatternConverter
    {
        protected override void Convert(TextWriter writer, object state)
        {
            if (state == null)
            {
                writer.Write(SystemInfo.NullText);
                return;
            }

            var loggingEvent = state as LoggingEvent;
            if (loggingEvent == null)
                return;

            Type messageObjectType = loggingEvent.MessageObject.GetType();
            PropertyInfo[] properties = messageObjectType.GetProperties(BindingFlags.Instance | BindingFlags.Public);

            foreach (var property in properties)
            {
                if (this.Option.ToLower().Equals(property.Name.ToLower()))
                {
                    writer.Write(property.GetValue(loggingEvent.MessageObject, null));
                }
            }
        }

我使用自定义ReflectionPatternLayout除了注册ReflectionPatternConverter之外什么都不做。

ReflectionPatternLayout

    public class ReflectionPatternLayout : PatternLayout
    {
        public ReflectionPatternLayout()
        {
            ConverterInfo converter = new ConverterInfo();
            converter.Name = "customProperties";
            converter.Type = typeof (ReflectionPatternConverter);
            AddConverter(converter);
        }
    }

我想记录这个自定义数据类：

CustomLogData

    public class CustomLogData
    {
        public string Prop1 { get; set; }
        public DateTime Prop2 { get; set; }
        public int Prop3 { get; set; }

        public override string ToString()
        {
            StringBuilder builder = new StringBuilder();
            builder.AppendFormat(
                "Prop1: {0}, Prop2: {1}, Prop3: {2}",
                this.Prop1,
                this.Prop2.ToString("yyyyMMdd HH:mm:ss"),
                this.Prop3);
            return builder.ToString();
        }
    }

所以我配置了log4net whit这个配置文件（片段）：

    <appender name="AdoNetManager" type="log4net.Appender.AdoNetAppender">
        <bufferSize value="1" />
        <connectionType value="System.Data.SqlClient.SqlConnection, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
        <connectionString value="**omitted**" />
        <commandText value="INSERT INTO dbo.ApplicationLog (Timestamp, Prop1, Prop2, Prop3) VALUES (@Timestamp, @Prop1, @Prop2, @Prop3)" />
        <parameter>
            <parameterName value="@Timestamp" />
            <dbType value="DateTime" />
            <layout type="log4net.Layout.RawTimeStampLayout" />
        </parameter>
        <parameter>
            <parameterName value="@Prop1" />
            <dbType value="String" />
            <size value="500" />
            <layout type="MyAssembly.ReflectionPatternLayout, MyAssembly">
                <conversionPattern value="%customProperties{Prop1}" />
            </layout>
        </parameter>
        <parameter>
            <parameterName value="@Prop2" />
            <dbType value="DateTime" />
            <layout type="MyAssembly.ReflectionPatternLayout, MyAssembly">
                <conversionPattern value="%customProperties{Prop2}" />
            </layout>
        </parameter>
        <parameter>
            <parameterName value="@Prop3" />
            <dbType value="Int32" />
            <layout type="MyAssembly.ReflectionPatternLayout, MyAssembly">
                <conversionPattern value="%customProperties{Prop3}" />
            </layout>
        </parameter>
    </appender>

我尝试编写日志条目的任何时候都会遇到此异常（将log4net＆＃39的调试模式设置为true）：

log4net：错误[AdoNetAppender] ErrorCode：GenericFailure。例外写入数据库log4net时：ERROR [AdoNetAppender] ErrorCode： GenericFailure。写入数据库时出现异常 System.FormatException：无法从String do转换参数值约会时间。 ---＆GT; System.FormatException：String未被识别为有效日期时间......

（异常消息可能不同，我将其翻译成意大利语。）有趣的是，如果我将当前线程区域设置放到CultureInfo.InvariantCulture

，我会正确完成日志

...        
Thread.CurrentThread.CurrentCulture = CultureInfo.InvariantCulture;
Thread.CurrentThread.CurrentUICulture = CultureInfo.InvariantCulture;
//log here

所以我非常怀疑这是一个日期时间格式的愚蠢的语言环境问题如何从客户端区域设置中解除日志记录？

log4net adonetappender具有自定义数据，如果包含DataTime数据则无法写入日志

0 个答案: