1、獲取介面傳來的分頁引數

String page_id=request.getParameter("page_id");//頁碼
String limit=request.getParameter("limit");    //每頁資料條數
//判斷為空時賦予初始值
if(StringUtils.isBlank(page_id)){
     page_id="1";
  }
if(StringUtils.isBlank(limit)){
     limit="10";
  }
//用PageRequest 接收分頁引數
PageRequest pageRequest = PageRequest.of(Integer.parseInt(page_id) - 1, Integer.parseInt(limit));
 

2、業務層呼叫jpa查詢

List<Map<String, Object>> comments = postCommentRepository.findCommentList("0", post_id, customerEntity.getId(), Integer.parseInt(pageRequest.getOffset()+""),pageRequest.getPageSize());

3、jpa用原聲sql查詢（nativeQuery = true）

      加limit 使用傳來的pageOffset和pageSize限制查詢幾條即可

     此時要用List接收查詢的資料，而不能用Page接收

@Query(value = "(select id id,content content,audit_flag audit_flag,create_date create_time," +
            "customer_id customer_id " +
            "from post_comment " +
            "where del_flag=?1 and post_id=?2 and audit_flag='1')" +
            "union " +
            "(select id id,content content,audit_flag audit_flag,create_date create_time," +
            "customer_id customer_id " +
            "from post_comment " +
            "where del_flag=?1 and post_id=?2 and customer_id=?3 and audit_flag in('0','2'))" +
            "limit ?4,?5",nativeQuery = true)
    List<Map<String,Object>> findCommentList(String delFlag,String post_id,String customerId,int pageOffset,int pageSize);
 

注意：我這裡用的是union聯合查詢，要對查出的整體資料進行分頁，則需要將union兩邊的sql用括號包起來