sql中批量插入begin的使用

    private static String ADD_ATTR_EXT_ITEM="insert into attr_ext_item(attr_ext_main_key,attr_name_key,attr_type,data_type,mode,
　　　　　　　　　　　　　　　　　　　　　　　　　　　　 tolerance,target_value,attr_lower_value,attr_higher_value,fetch_attr_group,
                                                fetch_attr_name,calc_expression,serial_port,serial_port_baud_rate,serial_port_data_format,
                                                pages)";
    public boolean saveAttrExtItem(final List<AttrExtItem> listAttrExtItem,final int attrExtMainid) {
            boolean result = true;
            if (listAttrExtItem == null || listAttrExtItem.size() == 0)
                return false;        
            StringBuffer buffer = new StringBuffer();
            try {
                buffer.append("begin;" );
                for (int i = 0; i < listAttrExtItem.size(); i++) {
                    AttrExtItem att = listAttrExtItem.get(i);
                    buffer.append(ADD_ATTR_EXT_ITEM);
                    buffer.append(" values("
                            +attrExtMainid
                            + ", " + att.getAttrNameKey()
                            + ", '" + att.getAttrType()
                            + "', '" + att.getDataType()
                            + "', '" + att.getMode()
                            + "', '" + att.getTolernace()
                            + "', '" + att.getTargetValue()
                            + "', '" + att.getAttrLowerValue()
                            + "', '" + att.getAttrHigherValue()
                            + "','" + att.getFetchAttrGroup()
                            + "', '" + att.getFetchAttrName()
                            + "', '" + att.getCalcExpression()
                            + "', '" + att.getSerialPort()
                            + "', " + att.getSerialPortbAUDRate()
                            + ", '" + att.getSerialPortDataFormat()
                            + "', '" + att.getPages()
                            +"'"+ ");");                
                }
                buffer.append("commit;");
                log.info("Add AttrExtItem sql: " + buffer.toString());
                this.getJdbcTemplate2().update(buffer.toString());
            } catch (Exception e) {
                result = false;
                log.error(e);
            }
            return result;
    }

 使用StringBuffer 拼接sql，append "begin" 和"commit"之间用循环处理要插入的多条sql数据。update语句也同理。