在EF6.0中打印数据库操作日志

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
namespace EFLogging {
    class Program {
        private static CSharpCornerEntities context = new CSharpCornerEntities();
        static void Main(string[] args) {
            context.Database.Log = logInfo => FileLogger.Log(logInfo);
            InsertEmployeeRecord();
            UpdateEmployeeRecord();
            context.Database.Log = Console.Write;
        }
        private static void UpdateEmployeeRecord(long employeeID) {
            //Linq
            var empData = (from employee in context.Employees where employee.ID == employeeID select employee).FirstOrDefault();
            //Lambda
            //var empData = context.Employees.Where(a => a.ID.Equals(employeeID)).ToList();
            empData.Location = "UK";
            context.Entry(empData).State = System.Data.Entity.EntityState.Modified;
            context.SaveChanges();
        }
        private static void InsertEmployeeRecord() {
            context.Employees.Add(new Employee {
                Designation = "Software Engineer ", Location = "Chennai", Name = "DummyRecord"
            });
            context.SaveChanges();
        }
    }
    public class FileLogger {
        public static void Log(string logInfo) {
            File.AppendAllText(@ "C:\Users\SMKG\Desktop\Logger.txt", logInfo);
        }
    }
}