serilog-sinks-mssqlserver：排除 xml 配置文件中的列

Question

如何排除 xml 配置文件中的列？

我想这样做serilogColumnOptions.Store.Remove(StandardColumn.Properties);配置文件中的事件

Answer 1

似乎无法通过 XML 配置删除 Serilog 列。

我找到了这个说法的几个确认：here and here。

您还可以通过检查 source code 的 SQL 服务器接收器来验证这一点：

MSSqlServer() 扩展方法检查 MSSqlServerSettingsSection 部分以配置列，如 documentation.

中所述

MSSqlServerConfigurationSection serviceConfigSection =
    ConfigurationManager.GetSection("MSSqlServerSettingsSection") as MSSqlServerConfigurationSection;

// If we have additional columns from config, load them as well
if (serviceConfigSection != null && serviceConfigSection.Columns.Count > 0)
{
    if (columnOptions == null)
    {
        columnOptions = new ColumnOptions();
    }
    GenerateDataColumnsFromConfig(serviceConfigSection, columnOptions);
}

如果您随后检查 GenerateDataColumnsFromConfig() 方法，您将看到所有配置的列都刚刚添加到 ColumnOptions 的 AdditionalDataColumns 集合中。但是没有任何代码可以从 Store 集合中删除列。

如果您的应用程序必须具有 Serilog 的文件配置并且有可能删除某些列，您可以从文件中添加对 Serilog 配置的简单替换。这是此类配置的示例实现：

var connectionString = ConfigurationManager.AppSettings["serilog:write-to:MSSqlServer.connectionString"];
var tableName = ConfigurationManager.AppSettings["serilog:write-to:MSSqlServer.tableName"];
var autoCreateSqlTable = Convert.ToBoolean(ConfigurationManager.AppSettings["serilog:write-to:MSSqlServer.autoCreateSqlTable"]);
var excludedColumns = ConfigurationManager.AppSettings["serilog:write-to:MSSqlServer.excludedColumns"];

ColumnOptions columnOptions = new ColumnOptions();
foreach (var excludedColumn in Regex.Split(excludedColumns, ",\s*"))
{
    columnOptions.Store.Remove((StandardColumn)Enum.Parse(typeof(StandardColumn), excludedColumn, true));
}

Logger log = new LoggerConfiguration()
    .WriteTo.MSSqlServer(connectionString, tableName, columnOptions: columnOptions, autoCreateSqlTable: autoCreateSqlTable)
    .CreateLogger();

这里是 appSettings 部分：

  <appSettings>
    <add key="serilog:using:MSSqlSever" value="Serilog.Sinks.MSSqlServer" />
    <add key="serilog:write-to:MSSqlServer.connectionString" value="Server=.;Database=LoggingDB;Trusted_Connection=True;"/>
    <add key="serilog:write-to:MSSqlServer.tableName" value="Logs"/>
    <add key="serilog:write-to:MSSqlServer.autoCreateSqlTable" value="true"/>
    <add key="serilog:write-to:MSSqlServer.excludedColumns" value="Properties, TimeStamp"/>
  </appSettings>

希望对您有所帮助。

serilog-sinks-mssqlserver：排除 xml 配置文件中的列

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