.Net Core Entity Framework Core 的基础封装 -数据库操作拦截器 - ToB企服应用市场:ToB评测及商务社交产业平台

/// <summary>
/// EF Core 的数据库操作拦截器，用于在数据库操作过程中进行日志记录和监视。
/// </summary>
/// <remarks>
/// 作者：我只吃饭不洗碗
/// 创建日期：2024年1月29日
/// </remarks>
public class LoggingInterceptor : DbCommandInterceptor
{
/// <summary>
/// 在执行查询命令之前拦截并输出日志。
/// </summary>
/// <param name="command">要执行的查询命令。</param>
/// <param name="eventData">命令事件数据。</param>
/// <param name="result">拦截结果。</param>
/// <returns>拦截结果。</returns>
public override InterceptionResult<DbDataReader> ReaderExecuting(DbCommand command, CommandEventData eventData, InterceptionResult<DbDataReader> result)
{
var fullCommandText = command.CommandText;
foreach (DbParameter param in command.Parameters)
{
var paramValue = param.Value is string ? $"'{param.Value}'" : param.Value.ToString();
fullCommandText = fullCommandText.Replace(param.ParameterName, paramValue);
}
Console.WriteLine($"Executing query: {fullCommandText}");
return base.ReaderExecuting(command, eventData, result);
}
/// <summary>
/// 在执行非查询命令之前拦截并输出日志。
/// </summary>
/// <param name="command">要执行的非查询命令。</param>
/// <param name="eventData">命令事件数据。</param>
/// <param name="result">拦截结果。</param>
/// <returns>拦截结果。</returns>
public override InterceptionResult<int> NonQueryExecuting(DbCommand command, CommandEventData eventData, InterceptionResult<int> result)
{
var fullCommandText = command.CommandText;
foreach (DbParameter param in command.Parameters)
{
var paramValue = param.Value is string ? $"'{param.Value}'" : param.Value.ToString();
fullCommandText = fullCommandText.Replace(param.ParameterName, paramValue);
}
Console.WriteLine($"Executing non-query command: {fullCommandText}");
return base.NonQueryExecuting(command, eventData, result);
}
/// <summary>
/// 在执行标量查询命令之前拦截并输出日志。
/// </summary>
/// <param name="command">要执行的标量查询命令。</param>
/// <param name="eventData">命令事件数据。</param>
/// <param name="result">拦截结果。</param>
/// <returns>拦截结果。</returns>
public override InterceptionResult<object> ScalarExecuting(DbCommand command, CommandEventData eventData, InterceptionResult<object> result)
{
var fullCommandText = command.CommandText;
foreach (DbParameter param in command.Parameters)
{
var paramValue = param.Value is string ? $"'{param.Value}'" : param.Value.ToString();
fullCommandText = fullCommandText.Replace(param.ParameterName, paramValue);
}
Console.WriteLine($"Executing scalar query: {fullCommandText}");
return base.ScalarExecuting(command, eventData, result);
}
}

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