pagehelper使用指南,pageoffice运行时错误
发生在我身上的问题是,
用方式一的写法可以得到所有的数据,无法实现分页。 请注意第一种写法: pagehelper.startpage(pagenum,pageSize )。 查询语句的用法2需要后续的写法才能得到数据@ servicepublicclassuserserviceimpl { @ resourceprivateusermapperusermapper; @ transactional (propagation=propagation.required,readOnly=true ) publicpageinfousergetusers integer pagenum,intege pageinfouserpageinfo=new page info (list ); //方式2//* pageinfouserpageinfo=page helper.start page (pagenum,pageSize ).doSelectPageInfo ()-{ user mapper.getue */return pageInfo; }原因:使用spring boot时,不进行配置,只导入依存关系开始使用。 构成系统代码为以下3360
package com.zhao.config; import com.Bao midou.mybatisplus.extension.plugins.pagination interceptor; import com.github.page helper.page interceptor; importorg.my batis.spring.annotation.mappers can; importorg.spring framework.context.annotation.bean; importorg.spring framework.context.annotation.configuration; @ configurationpublicclassmybatisplusconfig {/* * * page helper的分页插件*/@ beanpublicpageinterceptorpageinterceptor ()
总结不同场景下pagehelper的使用方法:
1 .在SSM项目中引入依赖即可
ependencygroupidcom.github.page helper/groupidartifactidpagehelper/artifactidversion5.1. 10/version/dependency 2
ependencygroupidcom.github.page helper/groupidartifactidpagehelper-spring-boot-starter/artifactidversion1.2. 2
的dependencygroupidcom.github.page helper/groupidartifactidpagehelper/artifactidversion5.1. 11/versionscopecompecompilier import com.github.page helper.page interceptor; importorg.my batis.spring.annotation.mappers can; importorg.spring framework.context.annotation.bean; importorg.spring framework.context.annotation.configuration; @ configurationpublicclassmybatisplusconfig {/* * * page helper的分页插件*/@ beanpublicpageinterceptorpageinterceptor ()