Update Core

Src/Asp.NetCore2/SqlSeverTest/PgSqlTest/Config.cs

@@ -8,8 +8,8 @@ namespace OrmTest
 {
     public class Config
     {
-        public static string ConnectionString = "PORT=5432;DATABASE=SqlSugar4xTest;HOST=localhost;PASSWORD=haosql;USER ID=postgres";
-        public static string ConnectionString2 = "PORT=5432;DATABASE=SqlSugar4xTest;HOST=localhost;PASSWORD=haosql;USER ID=postgres";
-        public static string ConnectionString3 = "PORT=5432;DATABASE=SqlSugar4xTest;HOST=localhost;PASSWORD=haosql;USER ID=postgres";
+        public static string ConnectionString = "PORT=5432;DATABASE=SqlSugar4xTest;HOST=localhost;PASSWORD=jhl52771;USER ID=postgres";
+        public static string ConnectionString2 = "PORT=5432;DATABASE=SqlSugar4xTest;HOST=localhost;PASSWORD=jhl52771;USER ID=postgres";
+        public static string ConnectionString3 = "PORT=5432;DATABASE=SqlSugar4xTest;HOST=localhost;PASSWORD=jhl52771;USER ID=postgres";
     }
 }

Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/DeleteProvider/DeleteableProvider.cs

@@ -21,6 +21,7 @@ namespace SqlSugar
         public bool IsEnableDiffLogEvent { get; set; }
         public DiffLogModel diffModel { get; set; }
         public List<string> tempPrimaryKeys { get; set; }
+        private Action RemoveCacheFunc { get; set; }
         public EntityInfo EntityInfo
         {
             get
@@ -213,8 +214,11 @@ namespace SqlSugar
 
         public IDeleteable<T> RemoveDataCache()
         {
-            var cacheService = this.Context.CurrentConnectionConfig.ConfigureExternalServices.DataInfoCacheService;
-            CacheSchemeMain.RemoveCache(cacheService, this.Context.EntityMaintenance.GetTableName<T>());
+            this.RemoveCacheFunc = () =>
+            {
+                var cacheService = this.Context.CurrentConnectionConfig.ConfigureExternalServices.DataInfoCacheService;
+                CacheSchemeMain.RemoveCache(cacheService, this.Context.EntityMaintenance.GetTableName<T>());
+            };
             return this;
         }
 
@@ -398,6 +402,9 @@ namespace SqlSugar
                 if (this.Context.Ado.DiffLogEvent != null)
                     this.Context.Ado.DiffLogEvent(diffModel);
             }
+            if (this.RemoveCacheFunc != null) {
+                this.RemoveCacheFunc();
+            }
         }
 
         private void Before(string sql)

Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs

@@ -29,6 +29,7 @@ namespace SqlSugar
         public bool IsAs { get; set; }
         public bool IsEnableDiffLogEvent { get; set; }
         public DiffLogModel diffModel { get; set; }
+        private Action RemoveCacheFunc { get; set; }
 
 
         #region Core
@@ -214,8 +215,11 @@ namespace SqlSugar
 
         public IInsertable<T> RemoveDataCache()
         {
-            var cacheService = this.Context.CurrentConnectionConfig.ConfigureExternalServices.DataInfoCacheService;
-            CacheSchemeMain.RemoveCache(cacheService, this.Context.EntityMaintenance.GetTableName<T>());
+            this.RemoveCacheFunc = () =>
+            {
+                var cacheService = this.Context.CurrentConnectionConfig.ConfigureExternalServices.DataInfoCacheService;
+                CacheSchemeMain.RemoveCache(cacheService, this.Context.EntityMaintenance.GetTableName<T>());
+            };
             return this;
         }
         public IInsertable<T> EnableDiffLogEvent(object businessData = null)
@@ -436,6 +440,9 @@ namespace SqlSugar
                 if (this.Context.Ado.DiffLogEvent != null)
                     this.Context.Ado.DiffLogEvent(diffModel);
             }
+            if (this.RemoveCacheFunc != null) {
+                this.RemoveCacheFunc();
+            }
         }
         private void Before(string sql)
         {

Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs

@@ -484,7 +484,7 @@ namespace SqlSugar
         }
         public virtual ISugarQueryable<T> MergeTable()
         {
-            Check.Exception(this.MapperAction != null, "'Mapper’ needs to be written after ‘MergeTable’ ");
+            Check.Exception(this.MapperAction != null||this.MapperActionWithCache!=null, "'Mapper’ needs to be written after ‘MergeTable’ ");
             Check.Exception(this.QueryBuilder.SelectValue.IsNullOrEmpty(), "MergeTable need to use Queryable.Select Method .");
             Check.Exception(this.QueryBuilder.Skip > 0 || this.QueryBuilder.Take > 0 || this.QueryBuilder.OrderByValue.HasValue(), "MergeTable  Queryable cannot Take Skip OrderBy PageToList  ");
             ToSqlBefore();
@@ -1006,9 +1006,19 @@ namespace SqlSugar
         {
             QueryBuilder.CheckExpression(expression, "OrderBy");
             var isSingle = QueryBuilder.IsSingle();
-            var lamResult = QueryBuilder.GetExpressionValue(expression, isSingle ? ResolveExpressType.FieldSingle : ResolveExpressType.FieldMultiple);
-            OrderBy(lamResult.GetResultString() + UtilConstants.Space + type.ToString().ToUpper());
-            return this;
+            if ((expression as LambdaExpression).Body is NewExpression)
+            {
+                var lamResult = QueryBuilder.GetExpressionValue(expression, isSingle ? ResolveExpressType.ArraySingle : ResolveExpressType.ArrayMultiple);
+                var items = lamResult.GetResultString().Split(',').Where(it => it.HasValue()).Select(it=> it + UtilConstants.Space + type.ToString().ToUpper()).ToList();
+                OrderBy(string.Join(",",items));
+                return this;
+            }
+            else
+            {
+                var lamResult = QueryBuilder.GetExpressionValue(expression, isSingle ? ResolveExpressType.FieldSingle : ResolveExpressType.FieldMultiple);
+                OrderBy(lamResult.GetResultString() + UtilConstants.Space + type.ToString().ToUpper());
+                return this;
+            }
         }
         protected ISugarQueryable<T> _GroupBy(Expression expression)
         {
@@ -1313,6 +1323,7 @@ namespace SqlSugar
             asyncQueryableBuilder.PartitionByValue = this.QueryBuilder.PartitionByValue;
             asyncQueryableBuilder.JoinExpression = this.QueryBuilder.JoinExpression;
             asyncQueryableBuilder.WhereIndex = this.QueryBuilder.WhereIndex;
+            asyncQueryableBuilder.HavingInfos = this.QueryBuilder.HavingInfos;
             asyncQueryableBuilder.LambdaExpressions.ParameterIndex = this.QueryBuilder.LambdaExpressions.ParameterIndex;
         }
         #endregion

Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/SqlBuilderProvider/SqlBuilderProvider.cs

@@ -98,11 +98,11 @@ namespace SqlSugar
         }
         public virtual string GetUnionAllSql(List<string> sqlList)
         {
-            return string.Join("UNION ALL \r\n", sqlList);
+            return string.Join(" UNION ALL \r\n", sqlList);
         }
         public virtual string GetUnionSql(List<string> sqlList)
         {
-            return string.Join("UNION \r\n", sqlList);
+            return string.Join(" UNION \r\n", sqlList);
         }
         public virtual void RepairReplicationParameters(ref string appendSql, SugarParameter[] parameters, int addIndex)
         {

Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/UpdateProvider/UpdateableProvider.cs

@@ -17,18 +17,21 @@ namespace SqlSugar
         public UpdateBuilder UpdateBuilder { get; set; }
         public IAdo Ado { get { return Context.Ado; } }
         public T[] UpdateObjs { get; set; }
+        public bool UpdateParameterIsNull { get; set; }
         public bool IsMappingTable { get { return this.Context.MappingTables != null && this.Context.MappingTables.Any(); } }
         public bool IsMappingColumns { get { return this.Context.MappingColumns != null && this.Context.MappingColumns.Any(); } }
         public bool IsSingle { get { return this.UpdateObjs.Length == 1; } }
         public List<MappingColumn> MappingColumnList { get; set; }
         private List<string> IgnoreColumnNameList { get; set; }
         private List<string> WhereColumnList { get; set; }
+        private bool IsWhereColumns { get; set; }
         private bool IsOffIdentity { get; set; }
         private bool IsVersionValidation { get; set; }
         public MappingTableList OldMappingTableList { get; set; }
         public bool IsAs { get; set; }
         public bool IsEnableDiffLogEvent { get; set; }
         public DiffLogModel diffModel { get; set; }
+        private Action RemoveCacheFunc { get; set; }
 
         public virtual int ExecuteCommand()
         {
@@ -152,6 +155,8 @@ namespace SqlSugar
 
         public IUpdateable<T> WhereColumns(Expression<Func<T, object>> columns)
         {
+            this.IsWhereColumns = true;
+            Check.Exception(UpdateParameterIsNull==true, "Updateable<T>().Updateable is error,Use Updateable(obj).WhereColumns");
             var whereColumns = UpdateBuilder.GetExpressionValue(columns, ResolveExpressType.ArraySingle).GetResultArray().Select(it => this.SqlBuilder.GetNoTranslationColumnName(it)).ToList();
             if (this.WhereColumnList == null) this.WhereColumnList = new List<string>();
             foreach (var item in whereColumns)
@@ -314,8 +319,11 @@ namespace SqlSugar
 
         public IUpdateable<T> RemoveDataCache()
         {
-            var cacheService = this.Context.CurrentConnectionConfig.ConfigureExternalServices.DataInfoCacheService;
-            CacheSchemeMain.RemoveCache(cacheService, this.Context.EntityMaintenance.GetTableName<T>());
+            this.RemoveCacheFunc = () =>
+            {
+                var cacheService = this.Context.CurrentConnectionConfig.ConfigureExternalServices.DataInfoCacheService;
+                CacheSchemeMain.RemoveCache(cacheService, this.Context.EntityMaintenance.GetTableName<T>());
+            };
             return this;
         }
 
@@ -392,6 +400,13 @@ namespace SqlSugar
         private void PreToSql()
         {
             UpdateBuilder.PrimaryKeys = GetPrimaryKeys();
+            if (this.IsWhereColumns) {
+                foreach (var pkName in UpdateBuilder.PrimaryKeys)
+                {
+                    var isContains=this.UpdateBuilder.DbColumnInfoList.Select(it => it.DbColumnName.ToLower()).Contains(pkName.ToLower());
+                    Check.Exception(isContains == false, "Use UpdateColumns().WhereColumn() ,UpdateColumns need {0}", pkName);
+                }
+            }
             #region IgnoreColumns
             if (this.Context.IgnoreColumns != null && this.Context.IgnoreColumns.Any())
             {
@@ -586,6 +601,9 @@ namespace SqlSugar
                 if (this.Context.Ado.DiffLogEvent != null)
                     this.Context.Ado.DiffLogEvent(diffModel);
             }
+            if (this.RemoveCacheFunc != null) {
+                this.RemoveCacheFunc();
+            }
         }
 
         private void Before(string sql)

Src/Asp.NetCore2/SqlSeverTest/SqlSugar/CacheScheme/CacheKeyBuider.cs

@@ -28,7 +28,7 @@ namespace SqlSugar
             result.IdentificationList.Add(queryBuilder.Take.ObjToString());
             result.IdentificationList.Add(queryBuilder.Skip.ObjToString());
             result.IdentificationList.Add(queryBuilder.IsCount.ObjToString());
-            result.IdentificationList.Add(queryBuilder.GetSelectValue.ObjToString().Length.ObjToString());
+            result.IdentificationList.Add(UtilMethods.GetMD5(queryBuilder.GetSelectValue.ObjToString()));
             if (queryBuilder.Parameters.HasValue())
             {
                 foreach (var item in queryBuilder.Parameters)

Src/Asp.NetCore2/SqlSeverTest/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs

@@ -25,14 +25,14 @@ namespace SqlSugar
             this.ParameterName = name;
             SettingDataType(type);
         }
-        public SugarParameter(string name, object value, Type type,ParameterDirection direction)
+        public SugarParameter(string name, object value, Type type, ParameterDirection direction)
         {
             this.Value = value;
             this.ParameterName = name;
             this.Direction = direction;
             SettingDataType(type);
         }
-        public SugarParameter(string name, object value, Type type, ParameterDirection direction,int size)
+        public SugarParameter(string name, object value, Type type, ParameterDirection direction, int size)
         {
             this.Value = value;
             this.ParameterName = name;
@@ -95,6 +95,10 @@ namespace SqlSugar
             {
                 this.DbType = System.Data.DbType.DateTimeOffset;
             }
+            else if (type == UtilConstants.TimeSpanType)
+            {
+                this.Value = this.Value.ToString();
+            }
 
         }
         public SugarParameter(string name, object value, bool isOutput)

Src/Asp.NetCore2/SqlSeverTest/SqlSugar/ExpressionsToSql/ResolveItems/BaseResolve.cs

@@ -445,5 +445,38 @@ namespace SqlSugar
                 Check.ThrowNotSupportedException(item.GetType().Name);
             }
         }
+        protected static Dictionary<string, string> MethodMapping = new Dictionary<string, string>() {
+            { "ToString","ToString"},
+            { "ToInt32","ToInt32"},
+            { "ToInt16","ToInt32"},
+            { "ToInt64","ToInt64"},
+            { "ToDecimal","ToDecimal"},
+            { "ToDateTime","ToDate"},
+            { "ToBoolean","ToBool"},
+            { "ToDouble","ToDouble"},
+            { "Length","Length"},
+            { "Replace","Replace"},
+            { "Contains","Contains"},
+            { "ContainsArray","ContainsArray"},
+            { "EndsWith","EndsWith"},
+            { "StartsWith","StartsWith"},
+            { "HasValue","HasValue"},
+            { "Trim","Trim"},
+            { "Equals","Equals"},
+            { "ToLower","ToLower"},
+            { "ToUpper","ToUpper"},
+            { "Substring","Substring"},
+            { "DateAdd","DateAdd"}
+        };
+
+        protected static  Dictionary<string, DateType> MethodTimeMapping = new Dictionary<string, DateType>() {
+            { "AddYears",DateType.Year},
+            { "AddMonths",DateType.Month},
+            { "AddDays",DateType.Day},
+            { "AddHours",DateType.Hour},
+            { "AddMinutes",DateType.Minute},
+            { "AddSeconds",DateType.Second},
+            { "AddMilliseconds",DateType.Millisecond}
+        };
     }
 }

Src/Asp.NetCore2/SqlSeverTest/SqlSugar/ExpressionsToSql/ResolveItems/MemberExpressionResolve.cs

@@ -60,6 +60,7 @@ namespace SqlSugar
             string fieldName = string.Empty;
             switch (parameter.Context.ResolveType)
             {
+                case ResolveExpressType.Update:
                 case ResolveExpressType.SelectSingle:
                     fieldName = GetSingleName(parameter, expression, isLeft);
                     if (isSetTempData)

Src/Asp.NetCore2/SqlSeverTest/SqlSugar/ExpressionsToSql/ResolveItems/MemberInitExpressionResolve.cs

@@ -61,7 +61,17 @@ namespace SqlSugar
                 {
                     if (item is UnaryExpression)
                         item = (item as UnaryExpression).Operand;
-                    MethodCall(parameter, memberName, item);
+                    var callMethod = item as MethodCallExpression;
+                    if (MethodTimeMapping.Any(it => it.Key == callMethod.Method.Name) || MethodMapping.Any(it=>it.Key==callMethod.Method.Name)||IsExtMethod(callMethod.Method.Name)||IsSubMethod(callMethod)|| callMethod.Method.DeclaringType.FullName.StartsWith(UtilConstants.AssemblyName+UtilConstants.Dot))
+                    {
+                        MethodCall(parameter, memberName, item);
+                    }
+                    else
+                    {
+                        var paramterValue = ExpressionTool.DynamicInvoke(item);
+                        string parameterName = AppendParameter(paramterValue);
+                        this.Context.Result.Append(base.Context.GetEqString(memberName, parameterName));
+                    }
                 }
                 else if (IsConst(item))
                 {
@@ -147,5 +157,19 @@ namespace SqlSugar
         {
             return SubTools.SubItemsConst.Any(it =>express.Object != null && express.Object.Type.Name == "Subqueryable`1");
         }
+        private bool IsExtMethod(string methodName)
+        {
+            if (this.Context.SqlFuncServices == null) return false;
+            return this.Context.SqlFuncServices.Select(it => it.UniqueMethodName).Contains(methodName);
+        }
+        private bool CheckMethod(MethodCallExpression expression)
+        {
+            if (IsExtMethod(expression.Method.Name))
+                return true;
+            if (expression.Method.ReflectedType().FullName != ExpressionConst.SqlFuncFullName)
+                return false;
+            else
+                return true;
+        }
     }
 }

Src/Asp.NetCore2/SqlSeverTest/SqlSugar/ExpressionsToSql/ResolveItems/MethodCallExpressionResolve.cs

@@ -513,40 +513,6 @@ namespace SqlSugar
             return null;
         }
 
-        private static Dictionary<string, string> MethodMapping = new Dictionary<string, string>() {
-            { "ToString","ToString"},
-            { "ToInt32","ToInt32"},
-            { "ToInt16","ToInt32"},
-            { "ToInt64","ToInt64"},
-            { "ToDecimal","ToDecimal"},
-            { "ToDateTime","ToDate"},
-            { "ToBoolean","ToBool"},
-            { "ToDouble","ToDouble"},
-            { "Length","Length"},
-            { "Replace","Replace"},
-            { "Contains","Contains"},
-            { "ContainsArray","ContainsArray"},
-            { "EndsWith","EndsWith"},
-            { "StartsWith","StartsWith"},
-            { "HasValue","HasValue"},
-            { "Trim","Trim"},
-            { "Equals","Equals"},
-            { "ToLower","ToLower"},
-            { "ToUpper","ToUpper"},
-            { "Substring","Substring"},
-            { "DateAdd","DateAdd"}
-        };
-
-        private static Dictionary<string, DateType> MethodTimeMapping = new Dictionary<string, DateType>() {
-            { "AddYears",DateType.Year},
-            { "AddMonths",DateType.Month},
-            { "AddDays",DateType.Day},
-            { "AddHours",DateType.Hour},
-            { "AddMinutes",DateType.Minute},
-            { "AddSeconds",DateType.Second},
-            { "AddMilliseconds",DateType.Millisecond}
-        };
-
         private bool IsContainsArray(MethodCallExpression express, string methodName, bool isValidNativeMethod)
         {
             return !isValidNativeMethod && express.Method.DeclaringType.Namespace.IsIn("System.Linq", "System.Collections.Generic") && methodName == "Contains";

Src/Asp.NetCore2/SqlSeverTest/SqlSugar/ExpressionsToSql/Subquery/Items/SubAndIF.cs

@@ -0,0 +1,62 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Linq.Expressions;
+using System.Text;
+
+namespace SqlSugar
+{
+    public class SubAndIF : ISubOperation
+    {
+        public bool HasWhere
+        {
+            get; set;
+        }
+
+        public string Name
+        {
+            get { return "WhereIF"; }
+        }
+
+        public Expression Expression
+        {
+            get; set;
+        }
+
+        public int Sort
+        {
+            get
+            {
+                return 400;
+            }
+        }
+
+        public ExpressionContext Context
+        {
+            get; set;
+        }
+
+        public string GetValue(Expression expression)
+        {
+            var exp = expression as MethodCallExpression;
+            object value = null;
+            try
+            {
+                value = ExpressionTool.DynamicInvoke(exp.Arguments[0]);
+            }
+            catch 
+            {
+                Check.Exception(true, ErrorMessage.WhereIFCheck,exp.Arguments[0].ToString());
+            }
+            var isWhere= Convert.ToBoolean(value);
+            if (!Convert.ToBoolean(isWhere)) {
+                return "";
+            }
+            var argExp = exp.Arguments[1];
+            var result = "AND " + SubTools.GetMethodValue(Context, argExp, ResolveExpressType.WhereMultiple); ;
+            var selfParameterName = Context.GetTranslationColumnName((argExp as LambdaExpression).Parameters.First().Name) + UtilConstants.Dot;
+            result = result.Replace(selfParameterName, SubTools.GetSubReplace(this.Context));
+            return result;
+        }
+    }
+}

Src/Asp.NetCore2/SqlSeverTest/SqlSugar/ExpressionsToSql/Subquery/SubResolve.cs

@@ -87,6 +87,16 @@ namespace SqlSugar
                  {
                      item = items.First(s => s is SubAnd);
                  }
+
+                 if (item is SubWhereIF && hasWhere == false)
+                 {
+                     hasWhere = true;
+                 }
+                 else if (item is SubWhereIF)
+                 {
+                     item = items.First(s => s is SubAndIF);
+                 }
+
                  item.Context = this.context;
                  item.Expression = exp;
                  return item;

Src/Asp.NetCore2/SqlSeverTest/SqlSugar/ExpressionsToSql/Subquery/SubTools.cs

@@ -17,6 +17,7 @@ namespace SqlSugar
                                                     new SubWhere(){ Context=Context },
                                                     new SubWhereIF(){ Context=Context },
                                                     new SubAnd(){ Context=Context },
+                                                    new SubAndIF(){ Context=Context },
                                                     new SubAny(){ Context=Context },
                                                     new SubNotAny(){ Context=Context },
                                                     new SubBegin(){ Context=Context },

Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Interface/IUpdateable.cs

@@ -10,6 +10,8 @@ namespace SqlSugar
     public interface IUpdateable<T> where T : class, new()
     {
         UpdateBuilder UpdateBuilder { get; set; }
+        bool UpdateParameterIsNull { get; set; }
+
         int ExecuteCommand();
         bool ExecuteCommandHasChange();
         Task<int> ExecuteCommandAsync();

Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Realization/Oracle/SqlBuilder/OracleBuilder.cs

@@ -34,8 +34,11 @@ namespace SqlSugar
         public override string SqlTranslationRight { get { return "\""; } }
         public override string GetTranslationTableName(string name)
         {
-            var result= base.GetTranslationTableName(name);
-            return result.ToUpper();
+            var result = base.GetTranslationTableName(name);
+            if (result.Contains("(") && result.Contains(")"))
+                return result;
+            else
+                return result.ToUpper();
         }
         public override string GetTranslationColumnName(string entityName, string propertyName)
         {

Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Realization/SqlServer/DbMaintenance/SqlServerDbMaintenance.cs

@@ -280,5 +280,15 @@ namespace SqlSugar
             }
             return true;
         }
+
+        public override bool RenameColumn(string tableName, string oldColumnName, string newColumnName)
+        {
+            tableName = this.SqlBuilder.GetTranslationTableName(tableName);
+            oldColumnName = this.SqlBuilder.GetTranslationColumnName(oldColumnName);
+            newColumnName = this.SqlBuilder.GetNoTranslationColumnName(newColumnName);
+            string sql = string.Format(this.RenameColumnSql, tableName, oldColumnName, newColumnName);
+            this.Context.Ado.ExecuteCommand(sql);
+            return true;
+        }
     }
 }

Src/Asp.NetCore2/SqlSeverTest/SqlSugar/SqlSugarClient.cs

@@ -532,7 +532,9 @@ namespace SqlSugar
         }
         public virtual IUpdateable<T> Updateable<T>() where T : class, new()
         {
-            return this.Context.Updateable(new T[] { new T() });
+            var result= this.Context.Updateable(new T[] { new T() });
+            result.UpdateParameterIsNull=true;
+            return result;
         }
         public virtual IUpdateable<T> Updateable<T>(Dictionary<string, object> columnDictionary) where T : class, new()
         {

Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Utilities/UtilConstants.cs

@@ -29,6 +29,7 @@ namespace SqlSugar
         internal static Type StringType = typeof(string);
         internal static Type DateType = typeof(DateTime);
         internal static Type DateTimeOffsetType = typeof(DateTimeOffset);
+        internal static Type TimeSpanType = typeof(TimeSpan);
         internal static Type ByteArrayType = typeof(byte[]);
         internal static Type ModelType= typeof(ModelContext);
         internal static Type DynamicType = typeof(ExpandoObject);

Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Utilities/UtilMethods.cs

@@ -4,6 +4,7 @@ using System.Data;
 using System.Data.SqlClient;
 using System.Linq;
 using System.Reflection;
+using System.Security.Cryptography;
 using System.Text;
 using System.Text.RegularExpressions;
 
@@ -114,5 +115,20 @@ namespace SqlSugar
             return Convert.ToInt64(string.Join("", bytes).PadRight(20, '0'));
         }
 
+        internal static string GetMD5(string myString)
+        {
+            MD5 md5 = new MD5CryptoServiceProvider();
+            byte[] fromData = System.Text.Encoding.Unicode.GetBytes(myString);
+            byte[] targetData = md5.ComputeHash(fromData);
+            string byte2String = null;
+
+            for (int i = 0; i < targetData.Length; i++)
+            {
+                byte2String += targetData[i].ToString("x");
+            }
+
+            return byte2String;
+        }
+
     }
 }