-

SqlSugar/Abstract/DbFirstProvider/DbFirstProvider.cs

@@ -2,6 +2,8 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
+using System.Text.RegularExpressions;
+
 namespace SqlSugar
 {
     public abstract partial class DbFirstProvider : IDbFirst
@@ -16,6 +18,13 @@ namespace SqlSugar
         private string Namespace { get; set; }
         private bool IsAttribute { get; set; }
         private bool IsDefaultValue { get; set; }
+        private ISqlBuilder SqlBuilder
+        {
+            get
+            {
+                return InstanceFactory.GetSqlbuilder(this.Context.CurrentConnectionConfig);
+            }
+        }
         private List<DbTableInfo> TableInfoList { get; set; }
 
         public DbFirstProvider()
@@ -165,8 +174,7 @@ namespace SqlSugar
                             if (ConstructorText.IsValuable() && item.DefaultValue.IsValuable())
                             {
                                 ConstructorText = ConstructorText.Replace(DbFirstTemplate.KeyPropertyName, propertyName);
-                                ConstructorText = ConstructorText.Replace(DbFirstTemplate.KeyPropertyType, propertyTypeName);
-                                ConstructorText = ConstructorText.Replace(DbFirstTemplate.KeyDefaultValue, GetPropertyTypeConvert(item)) +(isLast?"":"\r\n"+DbFirstTemplate.KeyPropertyName);
+                                ConstructorText  = ConstructorText.Replace(DbFirstTemplate.KeyDefaultValue, GetPropertyTypeConvert(item)) + (isLast ? "" : DbFirstTemplate.ConstructorTemplate);
                             }
                         }
                     }
@@ -180,16 +188,21 @@ namespace SqlSugar
 
         private string GetProertypeDefaultValue(DbColumnInfo item)
         {
-            if (item.DefaultValue == null) return null;
-            string result = item.DefaultValue.TrimStart('(').TrimEnd(')').TrimStart('\'').TrimEnd('\'');
-            if (item.DefaultValue.GetType() == PubConst.DateType)
+            var result = item.DefaultValue;
+            if (result == null) return null;
+            if (Regex.IsMatch(result, @"^\(\'(.+)\'\)$"))
             {
-                return result.ObjToDate().ToString("yyyy-MM-dd hh:mm:ss.fff");
+                result = Regex.Match(result, @"^\(\'(.+)\'\)$").Groups[1].Value;
             }
-            else
+            if (Regex.IsMatch(result, @"^\((.+)\)$"))
             {
-                return result;
+                result = Regex.Match(result, @"^\((.+)\)$").Groups[1].Value;
             }
+            if (result.Equals(this.SqlBuilder.SqlDateNow,StringComparison.CurrentCultureIgnoreCase))
+            {
+                result = "DateTime.Now";
+            }
+            return result;
         }
 
         public void CreateClassFile(string directoryPath, string nameSpace = "Models")
@@ -242,7 +255,9 @@ namespace SqlSugar
         }
         private string GetPropertyTypeConvert(DbColumnInfo item)
         {
-            string result = "(\""+GetProertypeDefaultValue(item) +"\")";
+            var convertString = GetProertypeDefaultValue(item);
+            if (convertString == "DateTime.Now"|| convertString==null) return convertString;
+            string result = this.Context.Ado.DbBind.GetCSharpConvert(item.DataType) + "(\"" + convertString + "\")";
             return result;
         }
 

SqlSugar/Abstract/DbFirstProvider/DbFirstTemplate.cs

@@ -35,7 +35,7 @@ namespace SqlSugar
                                                 PropertySpace + "/// Nullable:{IsNullable}\r\n" +
                                                 PropertySpace + "/// </summary>";
 
-        public static string ConstructorTemplate = PropertySpace + "this.{PropertyName} ={PropertyType}(\"{DefaultValue}\");\r\n";
+        public static string ConstructorTemplate = PropertySpace + " this.{PropertyName} ={DefaultValue};\r\n";
 
         public static string UsingTemplate =   "using System;\r\n" +
                                                "using System.Linq;\r\n" +

SqlSugar/Abstract/SqlBuilderProvider/SqlBuilderProvider.cs

@@ -45,6 +45,7 @@ namespace SqlSugar
         }
         public virtual string SqlParameterKeyWord { get { return "@"; } }
         public virtual string SqlFalse { get { return "1=2 "; } }
+        public virtual string SqlDateNow { get { return "GETDATE()"; } }
         #endregion
     }
 }

SqlSugar/Interface/ISqlBuilder/ISqlBuilder.cs

@@ -20,6 +20,7 @@ namespace SqlSugar
 
         string SqlParameterKeyWord { get; }
         string SqlFalse { get; }
+        string SqlDateNow { get; }
 
         string GetTranslationTableName(string name);
         string GetTranslationColumnName(string entityName, string propertyName);