// 删,生成SQL为 DELETE FROM `table_name` WHERE `条件1` = ?
runner.del(where);
// 改,生成SQL为 UPDATE `table_name` SET `字段1` = ?, `字段2` = ? WHERE `条件1` = ?
runner.update(entity, where);
// 查,生成SQL为 SELECT * FROM `table_name` WHERE WHERE `条件1` = ? 第一个参数为返回的字段列表,如果null则返回所有字段
List<Entity> entityList = runner.find(null, where, new EntityHandler());
log.info("{}", entityList);