efCore3.1+mysql 启用日志查询记录

 1.  Nuget安装 Microsoft.Extensions.Logging

2.      

 /// <summary>         /// 记录sql语句日志         /// </summary>         public static readonly ILoggerFactory MyLoggerFactory           = LoggerFactory.Create(builder => {          builder.AddFilter((category, level) =>              category == DbLoggerCategory.Database.Command.Name              && level == LogLevel.Information).AddConsole();                    });  //添加日志             services.AddDbContext<SlaughterContext>(options=>options.UseLoggerFactory(MyLoggerFactory).UseMySql(Configuration.GetConnectionString("conStr")));