Mybatis-Plus实现分页查询

分页插件配置

MybatisPlusConfig

import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class MybatisPlusConfig {

    /**
     * 添加分页插件
     */
    @Bean
    public MybatisPlusInterceptor mybatisPlusInterceptor() {
        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
        interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));
        return interceptor;
    }
}

分页查询学生

测试

    @Autowired
    private StudentMapper studentMapper;

    @Test
    public void test() {
        int current = 1;  //当前页数
        int size = 10;    //当前展示数量
        Page page = new Page<>(current, size);
        studentMapper.selectPage(page, null);
        System.out.println("当前页数：" + page.getCurrent());
        System.out.println("当前展示数量：" + page.getSize());
        System.out.println("总页数：" + page.getPages());
        System.out.println("总数量：" + page.getTotal());
        System.out.println("当前展示数据：" + page.getRecords());
    }