public static Dialect getDialect(Connection conn) throws Exception {
        DatabaseMetaData databaseMetaData = conn.getMetaData();
        String databaseProductName = databaseMetaData.getDatabaseProductName();
        String dbType = databaseTypeMappings.getProperty(databaseProductName);
		if(StringHelper.isEmpty(dbType)) return null;
        if(dbType.equalsIgnoreCase("mysql")) return new MySqlDialect();
        else if(dbType.equalsIgnoreCase("oracle")) return new OracleDialect();
        else if(dbType.equalsIgnoreCase("postgres")) return new PostgresqlDialect();
        else if(dbType.equalsIgnoreCase("mssql")) return new SQLServerDialect();
		else if(dbType.equalsIgnoreCase("db2")) return new Db2Dialect();
		else if(dbType.equalsIgnoreCase("h2")) return new H2Dialect();
        else return null;
    }
public static Dialect getDialect(Connection conn) throws Exception {
        DatabaseMetaData databaseMetaData = conn.getMetaData();
        String databaseProductName = databaseMetaData.getDatabaseProductName();
        String dbType = databaseTypeMappings.getProperty(databaseProductName);
		if(StringHelper.isEmpty(dbType)) return null;
        if(dbType.equalsIgnoreCase("mysql")) return new MySqlDialect();
        else if(dbType.equalsIgnoreCase("oracle")) return new OracleDialect();
        else if(dbType.equalsIgnoreCase("postgres")) return new PostgresqlDialect();
        else if(dbType.equalsIgnoreCase("mssql")) return new SQLServerDialect();
		else if(dbType.equalsIgnoreCase("db2")) return new Db2Dialect();
		else if(dbType.equalsIgnoreCase("h2")) return new H2Dialect();
        else return null;
    }
public static Dialect getDialect ( Connection conn ) throws Exception { DatabaseMetaData databaseMetaData = conn . getMetaData ( ) ; String databaseProductName = databaseMetaData . getDatabaseProductName ( ) ; String dbType = databaseTypeMappings . getProperty ( databaseProductName ) ; if ( StringHelper . isEmpty ( dbType ) ) return null ; if ( dbType . equalsIgnoreCase ( "mysql" ) ) return new MySqlDialect ( ) ; else if ( dbType . equalsIgnoreCase ( "oracle" ) ) return new OracleDialect ( ) ; else if ( dbType . equalsIgnoreCase ( "postgres" ) ) return new PostgresqlDialect ( ) ; else if ( dbType . equalsIgnoreCase ( "mssql" ) ) return new SQLServerDialect ( ) ; else if ( dbType . equalsIgnoreCase ( "db2" ) ) return new Db2Dialect ( ) ; else if ( dbType . equalsIgnoreCase ( "h2" ) ) return new H2Dialect ( ) ; else return null ; }
根据连接对象获取数据库方言
@param conn 数据库连接
@return Dialect 方言
@throws Exception
根据连接对象获取数据库方言