首次提交：添加src文件夹代码

Cowain.Bake.BLL/LogService.cs

@@ -0,0 +1,60 @@
+using Cowain.Bake.Common.Enums;
+using Cowain.Bake.Model;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Unity;
+
+namespace Cowain.Bake.BLL
+{
+    public class LogService: ServiceBase
+    {
+        public LogService(IUnityContainer unityContainer) : base(unityContainer)
+        {
+        }
+        public int AddLog(string logText,string logLevel)
+        {
+            if (logText.Length>8000)
+            {
+                logText = logText.Substring(0,7900);
+            }
+            Model.TLog log = new Model.TLog();
+            log.Content = logText;
+            log.Level = 1;// logLevel;
+            log.CreateTime = DateTime.Now;
+
+            using (var Context = new BakingEntities())
+            {
+                Context.Set<TLog>().Add(log);
+                return Context.SaveChanges();
+            }
+   
+        }
+
+        public List<Model.TLog> QueryByTimeAndText(DateTime startTime, DateTime endTime, E_LogType logType)
+        {
+            List<Model.TLog> logList = null; 
+            using (var Context = new BakingEntities())
+            {
+                if (logType == E_LogType.All)
+                {
+                    logList = Context.Set<Model.TLog>().Where(item => item.CreateTime > startTime && item.CreateTime < endTime)
+                        .OrderByDescending(item => item.CreateTime).Take(3000).ToList();
+                }
+                else
+                {
+                    logList = Context.Set<Model.TLog>().Where(item => item.CreateTime > startTime && item.CreateTime < endTime && item.Level == (sbyte)logType)
+                      .OrderByDescending(item => item.CreateTime).Take(3000).ToList();
+                }
+                
+                if (logList == null)
+                {
+                    return null;
+                }
+                return logList;
+            }
+        }
+    }
+}