修复部分bug增加更多功能

samples/Sample.MySql/Program.cs

@@ -13,7 +13,6 @@ namespace Sample.MySql
     {
         public static void Main(string[] args)
         {
-            var list = Enumerable.Range(1,3).Select(o=>(o%100).ToString().PadLeft(2,'0')).ToList();
             CreateHostBuilder(args).Build().Run();
         }
 

src/ShardingCore/Bootstrappers/IShardingBootstrapper.cs

@@ -7,7 +7,8 @@
 namespace ShardingCore.Bootstrappers
 {
     /// <summary>
-    /// 主要的分表初始化器,不再需要手动调用,<code>IShardingRuntimeContext初始化的时候会调用</code>
+    /// 主要的分片初始化器,需要手动调用,如果你的分片路由存在定时执行的job譬如
+    /// 系统默认的时间分片的情况下那么需要调用<code>IShardingRuntimeContext初始化的时候会调用</code>
     /// </summary>
     public interface IShardingBootstrapper
     {

src/ShardingCore/Bootstrappers/ShardingInitializer.cs

@@ -41,7 +41,6 @@ namespace ShardingCore.Bootstrappers
             if (!_doOnlyOnce.IsUnDo())
                 return;
             _logger.LogDebug("sharding core starting......");
-            
             _logger.LogDebug("sharding core initialize entity metadata......");
             InitializeEntityMetadata();
             _logger.LogDebug("sharding core initialize parallel table......");
@@ -63,7 +62,6 @@ namespace ShardingCore.Bootstrappers
 
                 var entityMetadataInitializer =(IEntityMetadataInitializer)_shardingProvider.CreateInstance(entityMetadataInitializerType);
                 entityMetadataInitializer.Initialize();
-                    
             }
         }
 

src/ShardingCore/Core/ServiceProviders/IShardingProvider.cs

@@ -43,6 +43,8 @@ namespace ShardingCore.Core.ServiceProviders
         /// <typeparam name="TService"></typeparam>
         /// <returns></returns>
          TService GetRequiredService<TService>(bool tryApplicationServiceProvider=true);
+        
+        IServiceProvider ApplicationServiceProvider { get; }
 
         IShardingScope CreateScope();
     }

src/ShardingCore/Core/ServiceProviders/ShardingProvider.cs

@@ -44,6 +44,8 @@ namespace ShardingCore.Core.ServiceProviders
             return (TService)GetRequiredService(typeof(TService),tryApplicationServiceProvider);
         }
 
+        public IServiceProvider ApplicationServiceProvider => _applicationServiceProvider;
+
         public IShardingScope CreateScope()
         {
             return new ShardingScope(_internalServiceProvider.CreateScope(), _applicationServiceProvider?.CreateScope());

src/ShardingCore/Jobs/Impls/JobEntry.cs

@@ -2,6 +2,7 @@ using System;
 using System.Linq;
 using System.Reflection;
 using System.Threading;
+using ShardingCore.Exceptions;
 using ShardingCore.Jobs.Abstaractions;
 using ShardingCore.Jobs.Cron;
 
@@ -20,6 +21,15 @@ namespace ShardingCore.Jobs.Impls
             JobInstance = job;
             JobName = job.JobName;
             JobCronExpressions = job.GetJobCronExpressions();
+            if (JobCronExpressions == null)
+            {
+                throw new ArgumentException($" {nameof(JobCronExpressions)} is null");
+            }
+
+            if (JobCronExpressions.Any(o => o is null))
+            {
+                throw new ArgumentException($"{nameof(JobCronExpressions)} has null element");
+            }
         }
         /// <summary>
         /// 保证多线程只有一个清理操作
@@ -79,6 +89,7 @@ namespace ShardingCore.Jobs.Impls
         /// </summary>
         public void CalcNextUtcTime()
         {
+            
             this.NextUtcTime= JobCronExpressions.Select(cron => new CronExpression(cron).GetTimeAfter(DateTime.UtcNow)).Min();
         }
     }