Db.Fastest mysql set characterset

Src/Asp.Net/SqlSugar/Abstract/FastestProvider/FastBuilder.cs

@@ -10,7 +10,7 @@ namespace SqlSugar
     public class FastBuilder 
     {
         public SqlSugarProvider Context { get; set; }
-
+        public virtual string CharacterSet { get; set; }
         public virtual string UpdateSql { get; set; } = @"UPDATE TM
                                                     SET  {0}
                                                     FROM {1} TM

Src/Asp.Net/SqlSugar/Abstract/FastestProvider/Private.cs

@@ -14,7 +14,9 @@ namespace SqlSugar
             switch (this.context.CurrentConnectionConfig.DbType)
             {
                 case DbType.MySql:
-                    return new MySqlFastBuilder();
+                    var result= new MySqlFastBuilder();
+                    result.CharacterSet = this.CharacterSet;
+                    return result;
                 case DbType.SqlServer:
                     return new SqlServerFastBuilder();
                 case DbType.Sqlite:
@@ -24,7 +26,9 @@ namespace SqlSugar
                 case DbType.PostgreSQL:
                     return new PostgreSQLFastBuilder(this.entityInfo);
                 case DbType.MySqlConnector:
-                    return InstanceFactory.CreateInstance<IFastBuilder>("SqlSugar.MySqlConnector.MySqlFastBuilder");
+                    var resultConnector = InstanceFactory.CreateInstance<IFastBuilder>("SqlSugar.MySqlConnector.MySqlFastBuilder");
+                    resultConnector.CharacterSet = this.CharacterSet;
+                    return resultConnector;
                 case DbType.Dm:
                     break;
                 case DbType.Kdbndp:

Src/Asp.Net/SqlSugar/Abstract/FastestProvider/Setting.cs

@@ -12,6 +12,11 @@ namespace SqlSugar
         private int Size { get; set; }
         private string CacheKey { get; set; }
         private string CacheKeyLike { get; set; }
+        private string CharacterSet { get; set; }
+        public void SetCharacterSet(string CharacterSet) 
+        {
+            this.CharacterSet = CharacterSet;
+        }
         public IFastest<T> RemoveDataCache() 
         {
             CacheKey = typeof(T).FullName;

Src/Asp.Net/SqlSugar/Interface/IFastBuilder.cs

@@ -10,6 +10,7 @@ namespace SqlSugar
     public interface  IFastBuilder
     {
         SqlSugarProvider Context { get; set; }
+        string CharacterSet { get; set; }
         Task<int> UpdateByTempAsync(string tableName,string tempName,string [] updateColumns,string[] whereColumns);
         Task<int> ExecuteBulkCopyAsync(DataTable dt);
         Task CreateTempAsync<T>(DataTable dt) where T : class, new();

Src/Asp.Net/SqlSugar/Interface/IFastest.cs

@@ -12,6 +12,7 @@ namespace SqlSugar
         IFastest<T> RemoveDataCache(string cacheKey);
         IFastest<T> AS(string tableName);
         IFastest<T> PageSize(int Size);
+        void SetCharacterSet(string CharacterSet);
         int BulkCopy(List<T> datas);
         Task<int> BulkCopyAsync(List<T> datas);
         int BulkCopy(string tableName,DataTable dataTable);

Src/Asp.Net/SqlSugar/Realization/MySql/SqlBuilder/MySqlFastBuilder.cs

@@ -44,6 +44,10 @@ namespace SqlSugar
                     TableName = dt.TableName,
                     Local = true,
                 };
+                if (bulk.CharacterSet.HasValue()) 
+                {
+                    bulk.CharacterSet = this.CharacterSet;
+                }
                 bulk.Columns.AddRange(dt.Columns.Cast<DataColumn>().Select(colum =>new MySqlBuilder().GetTranslationColumnName(colum.ColumnName)).Distinct().ToArray());
                 result= await bulk.LoadAsync();
                 //执行成功才删除文件