分页工具之【PageHelper】

1.PageHelper技术

依赖

　　　　<!-- PageHelper -->
        <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>

引用的包

import com.github.pagehelper.PageHelper;

案例

public void test()
    {
        // 设置分页(第一页,100条)
        PageHelper.startPage(1, 100);
        // select * from product where id > 12274  数据库中有5000条
        List<Integer> productIdList = productManageMapper.getProductList(12274);
        // productIdList.size() = 100
        System.out.println("productIdList.size() = " + productIdList.size());
    }