spring boot集成pagehelper(两种方式)

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 [e-mail]
 */
@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;