JsqlParserCountOptimize sql=SELECT id,password,address,phone,name,email FROM T_USER_TEST3 WHERE name = ? 1. 跟踪JsqlParserCountOptimize的代码发现,打印日志前有一个判断logger.isDebugEnabled(), StdOutImpl默认是返回true; 而slf4j,由于没有指定debug日志级别导致日志没有输出, 指定mybatisplus包名下的日志...
public class MybatisPlusConfig { @Bean public PaginationInterceptor paginationInterceptor() { PaginationInterceptor paginationInterceptor = new PaginationInterceptor(); // 开启 count 的 join 优化,只针对部分 left join paginationInterceptor.setCountSqlParser(new JsqlParserCountOptimize(true)); return paginatio...
select count(*) from user u left join children c on c.name = u.name WHERE u.age = 18 left join条件导致数据结果数不一致 报错信息 无
mybatis报错:optimize this sql to a count sql has exception:……… exception:null 我的sql语句是这样的: (select distinct projects.*,unitUser.uname as unitName,adminUser.uname as userName from projects inner join unitUser on projects.unitId=unituser.id inner join adminProject on adminProject.p...
paginationInterceptor.setCountSqlParser(newJsqlParserCountOptimize(true));returnpaginationInterceptor; } } 三、使用new Page<>(current,pageSize)实现分页。 1、实体类User package com.exec.studymp.user.entity; import com.baomidou.mybatisplus.annotation.IdType; ...
第二步:给MybatisPlusConfiguration加上自动实例ExpandSqlInjector import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor; import com.baomidou.mybatisplus.extension.plugins.pagination.optimize.JsqlParserCountOptimize; import com.wd.cloud.script.executor.common.injector.ExpandSqlInjector; ...
@ConfigurationpublicclassPlusConfig{@BeanpublicPaginationInterceptorpaginationInterceptor(){PaginationInterceptorpaginationInterceptor=newPaginationInterceptor();// 开启 count 的 join 优化,只针对部分 left joinpaginationInterceptor.setCountSqlParser(newJsqlParserCountOptimize(true));returnpaginationInterceptor; ...
paginationInterceptor.setCountSqlParser(new JsqlParserCountOptimize(true)); return paginationInterceptor; } } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. mybatisplus 3.5.1 package com.gavin.Config; import com.baomidou.mybatisplus.annotation.DbType; ...
SpringBoot方式 代码语言:javascript 复制 packagecom.zb.config;importcom.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;importcom.baomidou.mybatisplus.extension.plugins.pagination.optimize.JsqlParserCountOptimize;importorg.springframework.context.annotation.Bean;importorg.springframework.context.annotatio...
select count(1) from (select name,count(1) from user GROUP BY name order by age desc, update_time desc)a 优化后为 select count(1) from (select name,count(1) from user GROUP BY name )a ps:注意我有疑惑的是order by的优化,而不是count(1)内置的那个优化(这个我理解为什么有group by或...