1.配置分页类

package com.youyou.address.config;
import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.transaction.annotation.EnableTransactionManagement;
//Spring boot方式
@EnableTransactionManagement(proxyTargetClass = true)
@Configuration
public class MybatisPlusConfig {
    /**
     * 分页插件
     */
    @Bean
    public PaginationInterceptor paginationInterceptor() {
        return new PaginationInterceptor();
    }
}

2.service代码

因为我们是使用集成过来的方法，所以不需要写dao层方法。

package com.youyou.address.service;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.youyou.address.dao.ContacterDao;
import com.youyou.address.entity.ContacterEO;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import java.util.List;
@Service
@Transactional
public class ContacterService {
    @Autowired
    private ContacterDao dao;
    /**
     * 分页查询
     * @param page
     * @return
     */
    public IPage<ContacterEO> findByPage(Page<ContacterEO> page){
        return   dao.selectPage(page, null);
    }
}

3.controller代码

@ApiOperation(value = "分页查询")
    @GetMapping("/findByPage")
    public IPage<ContacterEO> findByPage(int pageNo , int pageSize) {
        Page<ContacterEO> page = new Page<>(pageNo,pageSize);
        return service.findByPage(page);
    }