V2EX m1ch3ng 的所有回复第 1 页 / 共 6 页

自己研究了下解决了，代码如下：
@Override
protected void processelect(Select select, int index, String sql, Object obj) {
// 默认情况下，直接加到最外层查询的 where 后面
PlainSelect plainSelect = (PlainSelect) select.getSelectBody();
if (select.toString().contains("ROWNUM")) {
// oracle 分页的情况，需要找到最内层的查询，然后加到 where 后面
plainSelect = getInnerSelect(plainSelect);
}
// 给查询添加条件
GreaterThanEquals greaterThanEquals = getGreaterThanEquals();
Expression where = plainSelect.getWhere();
plainSelect.setWhere(where == null ? greaterThanEquals : new AndExpression(where, greaterThanEquals));
}

private static PlainSelect getInnerSelect(PlainSelect select) {
if (select.getFromItem() instanceof SubSelect) {
PlainSelect fromSelect = (PlainSelect) ((SubSelect) select.getFromItem()).getSelectBody();
return getInnerSelect(fromSelect);
}
return select;
}

@NotNull
private static GreaterThanEquals getGreaterThanEquals() {
GreaterThanEquals greaterThanEquals = new GreaterThanEquals();
greaterThanEquals.setLeftExpression(new Column("created_time"));
greaterThanEquals.setRightExpression(new DateValue("'2024-07-26'"));
return greaterThanEquals;
}

2024-07-27 09:48:29 +08:00

回复了 tongjiann 创建的主题程序员有一个代码的设计问题，大佬们帮帮我

@andy2415 #19 试了下，oracle 分页遇到了一个问题，sql 打印：

==> Preparing: SELECT * FROM (SELECT TMP.*, ROWNUM ROW_ID FROM (SELECT id, serial_number, command, sap_no, product_no, voucher_id, voucher_detail_id, voucher_details_id, record_status, remark, created_time, updated_time, pro_factory, batch_no, product_date, expire_date, product_num, pro_unit_cost, rx_flag, operator_name, operate_date, total_amount, price, old_voucher_id, old_voucher_details_id, spp_hsbl, settlement_time FROM POS_INVENTORY_UPLOAD_RECORD WHERE (command = ?)) TMP WHERE ROWNUM <= ?) WHERE ROW_ID > ? AND created_time >= {d '2024-07-26'}
==> Parameters: SALE_OR_REFUND_SALE(String), 4(Long), 2(Long)
<== Total: 0

其中 created_time >= {d '2024-07-26'} 是我自定义拦截器加的 GreaterThanEquals ，然而 mybatis-plus 在 oracle 场景下把它放在了最外层查询里面，如果想要实现放在 WHERE (command = ? AND created_time >= {d '2024-07-26'})，请问该如何调整？

P.S. 我配置的自定义拦截器顺序是放在分页插件后面的

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