sqlserver实现分页的几种方式

第一种:使用org.springframework.data.domain.Page来进行分页

package com.cellstrain.icell.repository.repositoryImpl;

import com.cellstrain.icell.entity.V_Paper;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.data.domain.Page;import org.springframework.data.domain.PageImpl;import org.springframework.data.domain.Pageable;import org.springframework.jdbc.core.BeanPropertyRowMapper;import org.springframework.jdbc.core.JdbcTemplate;import org.springframework.stereotype.Repository;import org.springframework.util.StringUtils;

import javax.persistence.EntityManager;import javax.persistence.PersistenceContext;import javax.persistence.Query;import java.util.List;import java.util.Map;

@Repository(value = "vPaperRepository")public class VPaperRepositoryImpl {    @Autowired    private JdbcTemplate jdbcTemplate;

@PersistenceContext    private EntityManager entityManager;

/**     * 后台分页查询     * @param condition     * @param pageable     * @return     */    public Page findByCondition(String condition, Pageable pageable){        StringBuffer hql = new StringBuffer("from V_Paper p where ");        if(!StringUtils.isEmpty(condition)){            hql.append("p.title like ‘%"+condition+"%‘ or p.entryName like ‘%"+condition+"%‘ or p.pName like ‘%"+condition+"%‘ or p.auth like ‘%"+condition+"%‘ order by p.paperId desc");        }else{            hql.append("1=1 order by p.paperId desc");        }        Query query = entityManager.createQuery(hql.toString());        //得到符合记录的总数        int count = query.getResultList().size();        Long total = (long)count;        //分页查询        query.setFirstResult(pageable.getOffset());        query.setMaxResults(pageable.getPageSize());        List<V_Paper> proteinRanksList = query.getResultList();        //封装Page        Page<V_Paper> page =new PageImpl<V_Paper>(proteinRanksList,pageable,total);    }

}

第二种:使用top关键字来进行分页

package com.cellstrain.icell.repository.repositoryImpl;

import com.cellstrain.icell.entity.V_Paper;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.data.domain.Page;import org.springframework.data.domain.PageImpl;import org.springframework.data.domain.Pageable;import org.springframework.jdbc.core.BeanPropertyRowMapper;import org.springframework.jdbc.core.JdbcTemplate;import org.springframework.stereotype.Repository;import org.springframework.util.StringUtils;

import javax.persistence.EntityManager;import javax.persistence.PersistenceContext;import javax.persistence.Query;import java.util.List;import java.util.Map;

@Repository(value = "vPaperRepository")public class VPaperRepositoryImpl {    @Autowired    private JdbcTemplate jdbcTemplate;

@PersistenceContext    private EntityManager entityManager;

/**     * 后台分页查询     * @param condition     * @param pageable     * @return     */    public Page findByCondition(String condition, Pageable pageable){        if(StringUtils.isEmpty(condition)){            condition="";        }        int pageSize=pageable.getPageSize();        int pageNow=pageable.getPageNumber();        String sql="select top "+pageSize+" vp.paperId,vp.title,vp.entryName,vp.source,vp.recordDate,vp.url,vp.auth,dbo.JoinStr(vp.paperId) as pNames" +                " from V_Paper vp where vp.paperId not in(select top "+pageSize*pageNow+" paperId from V_Paper order by paperId desc) and (title like ‘%"+condition+"%‘ or contents like ‘%"+condition+"%‘) " +                "group by vp.paperId,vp.title,vp.entryName,vp.source,vp.recordDate,vp.url,vp.auth order by vp.paperId desc";        List paperList=null;        Long total = jdbcTemplate.queryForObject("select count(*) from V_Paper",Long.class);        try{            paperList=jdbcTemplate.queryForList(sql);        }catch (Exception e){            e.printStackTrace();        }        Page page = new PageImpl(paperList, pageable, total);        return page;    }}