Question

我尝试使用log4net以JSON格式记录一些值。

以下是我的log4net配置

<appender name="DataDeleteAppender" type="log4net.Appender.RollingFileAppender">
       <file value="c:\\deltanetscratch\\splunk\\DataDelete" />
       <appendToFile value="true" />
       <lockingModel type="log4net.Appender.FileAppender+MinimalLock" />
       <rollingStyle value="Date" />
       <datePattern value="'.'yyyyMMdd'.log'" />
       <staticLogFileName value="false" />
       <layout type="log4net.Layout.SerializedLayout, log4net.Ext.Json">
          <decorator type="log4net.Layout.Decorators.StandardTypesFlatDecorator, log4net.Ext.Json" />
          <default />
          <remove value="message" />
          <remove value="appname" />
          <remove value="ndc" />
          <remove value="logger" />
          <remove value="thread" />
          <member value="M:messageobject" />
       </layout>
    </appender>

  <logger name="DataDelete">
    <level value="INFO"/>
    <appender-ref ref="DataDeleteAppender"/>
  </logger>

以下是我的c＃代码

    _Log.Info(new
    {
    EndTime = DateTime.Now,
    IsClientConnected = HttpContext.Current.Response.IsClientConnected,
    batchSize = BatchSize,
    searchStartDate = StartDate,
    searchEndDate = EndDate,
    emails = Emails,
    ActionType = "Queue Course",
    RowsAffected = HttpContext.Current.Items[ROW_COUNTER] == null ? "0" : HttpContext.Current.Items[ROW_COUNTER].ToString()
    });

以下是我的输出。在此处查看所有属性获取M.前缀。我想删除前缀并获取属性。

{  
   "date":"2017-05-26T15:34:24.7920436+05:30",
   "level":"INFO",
   "M.EndTime":"2017-05-26T15:34:24.7920436+05:30",
   "M.IsClientConnected":true,
   "M.batchSize":2,
   "M.searchStartDate":"2000-04-30T00:00:00.0000000",
   "M.searchEndDate":"2008-04-30T00:00:00.0000000",
   "M.emails":"lec@intl.com",
   "M.ActionType":"Queue Course",
   "M.RowsAffected":"0"
}

我期待输出如下。

{  
   "date":"2017-05-26T15:34:24.7920436+05:30",
   "level":"INFO",
   "EndTime":"2017-05-26T15:34:24.7920436+05:30",
   "IsClientConnected":true,
   "batchSize":2,
   "searchStartDate":"2000-04-30T00:00:00.0000000",
   "searchEndDate":"2008-04-30T00:00:00.0000000",
   "emails":"lec@intl.com",
   "ActionType":"Queue Course",
   "RowsAffected":"0"
}

请问您如何实现此输出？

Answer 1

这应该是相当简单的。替换：

<decorator type="log4net.Layout.Decorators.StandardTypesFlatDecorator, log4net.Ext.Json" />

与

<decorator type="log4net.Layout.Decorators.StandardTypesDecorator, log4net.Ext.Json" />

StandardTypesFlatDecorator使对象图变平，将成员路径作为前缀添加。

使用StandardTypesDecorator，您可以将您的messageobject嵌套在logevent对象中。

如果这还不够好，那么我建议两个选择：

1）实现自己的装饰器 - 查看StandardTypesDecorator的来源 - 您可以覆盖Standardize()方法以将LogEvent成员与自定义对象成员合并。

2）使用NXLog或LogStash重写日志。 NXlog需要平面格式。

Log4Net为messegeobject的属性添加前缀

1 个答案: