java.lang.ClassCastException: com.alibaba.druid.pool.DruidPooledConnection cannot be cast to oracle.jdbc.OracleConnection

@Inject
	private DruidDataSource datasource;
Connection conn = datasource.getConnection();
			String shpSqlStr = "insert into map_table values(?,?,?,?,?,?,?)";
			PreparedStatement shpStmt = conn.prepareStatement(shpSqlStr);
			
			Struct struct = shape.getStruct(conn, 1);
			
			shpStmt.setString(1,"1");
			shpStmt.setObject(2,struct);
			shpStmt.setInt(3,1);
			shpStmt.setString(4,"1");
			shpStmt.setString(5, "1");
			shpStmt.setBigDecimal(6, null);
			shpStmt.setBoolean(7, false);
			shpStmt.execute();