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public class CustomEFLogger : ILogger    {
           private string _CategoryName = null;        public CustomEFLogger(string categoryName)        {
               this._CategoryName = categoryName;        }        public IDisposable BeginScope
   
    (TState state)        {
               return null;        }        public bool IsEnabled(LogLevel logLevel)        {
               return true;        }        public void Log
    
     (LogLevel logLevel, EventId eventId, TState state, Exception exception, Func
     
       formatter)        {
               System.Diagnostics.Debug.WriteLine($"************************************************************");            System.Diagnostics.Debug.WriteLine($"CustomEFLogger {_CategoryName} {logLevel} {eventId} {state} start");            System.Diagnostics.Debug.WriteLine($"异常信息：{exception?.Message}");            System.Diagnostics.Debug.WriteLine($"信息：{formatter.Invoke(state, exception)}");            System.Diagnostics.Debug.WriteLine($"CustomEFLogger {_CategoryName} {logLevel} {eventId} {state} end");            System.Diagnostics.Debug.WriteLine($"************************************************************");        }    }
     
    
   

public class CustomEFLoggerFactory : ILoggerFactory    {
           public void AddProvider(ILoggerProvider provider)        {
                       }        public ILogger CreateLogger(string categoryName)        {
               return new CustomEFLogger(categoryName);        }        public void Dispose()        {
                      }    }

/// 
/// 日志问题/// 
public partial class JDDbContext : DbContext{
       public JDDbContext(DbContextOptions
   
     options) : base(options)    {
           Console.WriteLine("This is JDDbContext DbContextOptions");    }    private IConfiguration _IConfiguration = null;    private ILoggerFactory _iLoggerFactory = null;    public JDDbContext(IConfiguration configuration, ILoggerFactory loggerFactory)    {
           this._IConfiguration = configuration;        this._iLoggerFactory = loggerFactory;        Console.WriteLine("This is JDDbContext configuration loggerFactory");    }    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)    {
           var builder = new ConfigurationBuilder()       .SetBasePath(Directory.GetCurrentDirectory())       .AddJsonFile("appsettings.json");        var configuration = builder.Build();        var conn = configuration.GetConnectionString("JDDbConnection");        optionsBuilder.UseSqlServer(conn);                optionsBuilder.UseLoggerFactory(new CustomEFLoggerFactory());        optionsBuilder.UseLoggerFactory(this._iLoggerFactory);        optionsBuilder.UseSqlServer(this._IConfiguration.GetConnectionString("JDDbConnection"));        optionsBuilder.UseSqlServer(StaticConstraint.JDDbConnection);        optionsBuilder.UseSqlServer("Server=.;Database=advanced11;User id=sa;password=Passw0rd");    } }
   

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