我想使用PreparedStatementINSERT几行:ps=con.prepareStatement(query,PreparedStatement.RETURN_GENERATED_KEYS);for(Elemente:listOfElements){ps.setString(1,this.col_val_1);ps.setString(2,this.col_val_2);ps.setInt(3,this.col_val_3);ps.addBatch();}ps.executeBatch();ResultSetrs=ps.getGeneratedKeys();此时,当我希望为每