当spring boot集成好mybatis时候需要进行分页,我们首先添加maven支持
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>5.1.2</version>
</dependency>
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper-spring-boot-autoconfigure</artifactId>
<version>1.2.3</version>
</dependency>
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper-spring-boot-starter</artifactId>
<version>1.2.3</version>
</dependency>
方式一:我们在application.yml(spring 需要读取的yml)中加入
pagehelper:
helperDialect: mysql
reasonable: true
supportMethodsArguments: true
params: count=countSql
然后重启即可。
配置文件最终会被java所读取,最终注入到spring bean中,所以我们方法二是配置其bean类,热加载方便修改当然方式一更简单,
方式二:在注解涵盖package下面新建PageHeleperConfig
import com.github.pagehelper.PageHelper;
import java.util.Properties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
/**
* @author zhuxiaomeng
* @date 2018/1/2.
* @email [email protected]
*/
@Configuration
public class PageHelperConfig {
@Bean
public PageHelper getPageHelper(){
PageHelper pageHelper=new PageHelper();
Properties properties=new Properties();
properties.setProperty("helperDialect","mysql");
properties.setProperty("reasonable","true");
properties.setProperty("supportMethodsArguments","true");
properties.setProperty("params","count=countSql");
pageHelper.setProperties(properties);
return pageHelper;
}
}
pageHelper 基础知识为:
import com.github.pagehelper.Page; import com.github.pagehelper.PageHelper;
Page<T> tPage= PageHelper.startPage(page,limit);
下一句的查询语句来进行分页。你只需要用List<T>接收
如果你有疑问可以下载开源项目lenos 快速开发脚手架,spring boot 版本来熟悉学习。
地址:https://gitee.com/bweird/lenosp
演示地址:www.lenosp.cn