jpa源生sql在dao的实现类查询

  @Autowired
    EntityManager entityManager;

    @Override
    public List getSel(String name) {
        StringBuffer sql=new StringBuffer("SELECT f.id,f.title,f.createDate,f.content,f.classId,c.cname FROM faqs f\n" +
                "LEFT JOIN classes c on f.classId=c.id where 1=1");
        Query query=null;
        if(name!=null&&!name.equals("")){
            sql.append("  and f.title like CONCAT('%',:name,'%') ");
            query= entityManager.createNativeQuery(sql.toString()).setParameter("name",name);
        }else{
            query=entityManager.createNativeQuery(sql.toString());
        }
        return query.getResultList();
    }

  @Autowired
    FaqsDao faqsDao;
    @Override
    public List getSel(String name) {
        List