返回值：

如圖：，返回結果中，根據股票程式碼關聯查詢了股票名稱，這邊spring boot 有自帶jpa的寫法，下一篇，介紹roo.join();這邊介紹下hibernate的寫法，

Controller:

 /**
    * 查詢最新的標的券得分介面
* @return
*/
@GetMapping(value = "/allScore")
public Result find(@PageableDefault(value = 15,sort = {"securityScore"},direction = Sort.Direction.DESC)Pageable pageable
                ,
 
@RequestParam(value = "code",required = false) String code){
   Grid grid = svService.findAllScore(pageable,code);
   return ResultUtil.success(grid);
}

/**
 * 查詢最新標的券的得分
* @return
*/
public Grid findAllScore(Pageable pageable,String code){
    Sort sort = new Sort(Sort.Direction.DESC,"stopTime"
 
);
PageRequest pr = new PageRequest(0,1,sort);
//findByStopTimeIsNotNull方法就是排除了stoptime欄位為空的情況，在用PageRequest排序
Page<SvScoreRecord> currentScore = svScoreRecordRepository.findByStopTimeIsNotNull(pr);
String recordId = currentScore.getContent().get(0).getId();
Page<SvScoreStock> page = null;
    if 
 
(StringUtils.isEmpty(code)) {
        page = svScoreRepository.findAllScore(recordId,pageable);
        if (page.getSize() <= 0){
            throw new ServiceException(ResultEnum.NO_FACTOR.getCode(),"查詢不到當前股票最新的分");
}
    } else {
        page = svScoreRepository.findAllScoreByCode(code,recordId,pageable);
        if (page.getSize() <= 0){
            throw new ServiceException(ResultEnum.NO_FACTOR.getCode(),"查詢不到所有股票最新的分");
}
    }
    Grid grid = new Grid(null,page.getTotalPages());
List list1 = new ArrayList();
list1.add(0,"tradingcode");
list1.add(1,"secuabbr");
list1.add(2,"securityScore");
list1.add(3,"financeConversionRate");
list1.add(4,"tradingPledgeRate");
grid.setIds(list1);
List list2 = new ArrayList();
list2.add(0,"股票程式碼");
list2.add(1,"股票名稱");
list2.add(2,"標的券得分");
list2.add(3,"融資融券基準折算率");
list2.add(4,"股票質押率");
grid.setHds(list2);
grid.setRows(page.getContent());
    return grid;
}

Repository:

@Query("select s.tradingcode as tradingcode, s.recordId as recordId, s.securityScore as securityScore," +
        " s.financeConversionRate as financeConversionRate, s.tradingPledgeRate as tradingPledgeRate," +
        " t.secuabbr as secuabbr from SV_SCORE s left join s.stock t where s.tradingcode = ?1 and s.recordId = ?2")
Page<SvScoreStock> findAllScoreByCode(String code,String recordId,Pageable pageable);
@Query("select s.tradingcode as tradingcode, s.recordId as recordId, s.securityScore as securityScore," +
        " s.financeConversionRate as financeConversionRate, s.tradingPledgeRate as tradingPledgeRate," +
        " t.secuabbr as secuabbr from SV_SCORE s left join s.stock t where s.recordId = ?1")
Page<SvScoreStock> findAllScore(String recordId,Pageable pageable);