diff --git a/Src/Asp.Net/SqlSugar/ExpressionsToSql/Common/ErrorMessage.cs b/Src/Asp.Net/SqlSugar/ExpressionsToSql/Common/ErrorMessage.cs
index ebf948edc..be95a7a91 100644
--- a/Src/Asp.Net/SqlSugar/ExpressionsToSql/Common/ErrorMessage.cs
+++ b/Src/Asp.Net/SqlSugar/ExpressionsToSql/Common/ErrorMessage.cs
@@ -34,7 +34,7 @@ namespace SqlSugar
         {
             get
             {
-                return ErrorMessage.GetThrowMessage("Connection open error . {0}", " 连接字符串出错了，实在找不到原因请先Google错误.{0}.");
+                return ErrorMessage.GetThrowMessage("Connection open error . {0}", " 连接字符串出错了，实在找不到原因请先Google错误{0}.");
             }
         }
     }
diff --git a/Src/Asp.Net/SqlSugar/Realization/MySql/MySqlProvider.cs b/Src/Asp.Net/SqlSugar/Realization/MySql/MySqlProvider.cs
index 978cd4190..31c86e5bb 100644
--- a/Src/Asp.Net/SqlSugar/Realization/MySql/MySqlProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Realization/MySql/MySqlProvider.cs
@@ -17,12 +17,19 @@ namespace SqlSugar
             {
                 if (base._DbConnection == null)
                 {
-                    var mySqlConnectionString = base.Context.CurrentConnectionConfig.ConnectionString;
-                    if (!mySqlConnectionString.ToLower().Contains("charset"))
+                    try
                     {
-                        mySqlConnectionString=mySqlConnectionString.Trim().TrimEnd(';') + ";charset=utf8;";
+                        var mySqlConnectionString = base.Context.CurrentConnectionConfig.ConnectionString;
+                        if (!mySqlConnectionString.ToLower().Contains("charset"))
+                        {
+                            mySqlConnectionString = mySqlConnectionString.Trim().TrimEnd(';') + ";charset=utf8;";
+                        }
+                        base._DbConnection = new MySqlConnection(mySqlConnectionString);
+                    }
+                    catch (Exception ex)
+                    {
+                        Check.Exception(true, ErrorMessage.ConnnectionOpen, ex.Message);
                     }
-                    base._DbConnection = new MySqlConnection(mySqlConnectionString);
                 }
                 return base._DbConnection;
             }
diff --git a/Src/Asp.Net/SqlSugar/Realization/Oracle/OracleProvider.cs b/Src/Asp.Net/SqlSugar/Realization/Oracle/OracleProvider.cs
index 005f97a26..520139269 100644
--- a/Src/Asp.Net/SqlSugar/Realization/Oracle/OracleProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Realization/Oracle/OracleProvider.cs
@@ -22,9 +22,17 @@ namespace SqlSugar
         {
             get
             {
-                if (base._DbConnection == null)
+                try
                 {
-                    base._DbConnection = new OracleConnection(base.Context.CurrentConnectionConfig.ConnectionString);
+                    if (base._DbConnection == null)
+                    {
+                        base._DbConnection = new OracleConnection(base.Context.CurrentConnectionConfig.ConnectionString);
+                    }
+                }
+                catch (Exception ex)
+                {
+
+                    Check.Exception(true, ErrorMessage.ConnnectionOpen, ex.Message);
                 }
                 return base._DbConnection;
             }
diff --git a/Src/Asp.Net/SqlSugar/Realization/SqlServer/SqlServerProvider.cs b/Src/Asp.Net/SqlSugar/Realization/SqlServer/SqlServerProvider.cs
index 661f13639..cb920b233 100644
--- a/Src/Asp.Net/SqlSugar/Realization/SqlServer/SqlServerProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Realization/SqlServer/SqlServerProvider.cs
@@ -16,7 +16,14 @@ namespace SqlSugar
             {
                 if (base._DbConnection == null)
                 {
-                    base._DbConnection = new SqlConnection(base.Context.CurrentConnectionConfig.ConnectionString);
+                    try
+                    {
+                        base._DbConnection = new SqlConnection(base.Context.CurrentConnectionConfig.ConnectionString);
+                    }
+                    catch (Exception ex)
+                    {
+                        Check.Exception(true, ErrorMessage.ConnnectionOpen, ex.Message);
+                    }
                 }
                 return base._DbConnection;
             }
diff --git a/Src/Asp.Net/SqlSugar/Realization/Sqlite/SqliteProvider.cs b/Src/Asp.Net/SqlSugar/Realization/Sqlite/SqliteProvider.cs
index 73334e739..3f497adc2 100644
--- a/Src/Asp.Net/SqlSugar/Realization/Sqlite/SqliteProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Realization/Sqlite/SqliteProvider.cs
@@ -17,8 +17,15 @@ namespace SqlSugar
             {
                 if (base._DbConnection == null)
                 {
-                    var SQLiteConnectionString = base.Context.CurrentConnectionConfig.ConnectionString;
-                    base._DbConnection = new SQLiteConnection(SQLiteConnectionString);
+                    try
+                    {
+                        var SQLiteConnectionString = base.Context.CurrentConnectionConfig.ConnectionString;
+                        base._DbConnection = new SQLiteConnection(SQLiteConnectionString);
+                    }
+                    catch (Exception ex)
+                    {
+                        Check.Exception(true, ErrorMessage.ConnnectionOpen, ex.Message);
+                    }
                 }
                 return base._DbConnection;
             }