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类
我要让不同的查询休眠 这里是我的DaoImpl鲜明的错误java.lang.Integer中不能被强制转换为模拟
@SuppressWarnings("unchecked")
public List<ModelNilai> getListNilaiAwal(Integer page, Integer id, Integer idm) {
// TODO Auto-generated method stub
List<ModelNilai> list = new ArrayList<ModelNilai>();
Disjunction dis = Restrictions.disjunction();
dis.add(Restrictions.eq("mahasiswa.id", id));
Criteria c = getCurrentSession().createCriteria(ModelNilai.class);
c.createAlias("makul","m");
c.setProjection(Projections.property("id"));
c.setProjection(Projections.distinct(Projections.property("m.id")));
c.add(dis);
if(page!=null){
c.setFirstResult((page-1)*LISTSIZE);
}
/*Mengurutkan data yang dipilih berdasar id secara Descending*/
c.addOrder(Order.desc("id"));
/*Menentukan jumlah baris data dari tabel yang di pilih*/
c.setMaxResults(LISTSIZE);
list.addAll(c.list());
if(page==null){
setTotalPage(c);
}
return list;
}
这里我ModelNilai
@ManyToOne
@JoinColumn(name="id_makul")
private ModelMakul makul;
ModelMakul
@OneToMany(mappedBy="makul",cascade=CascadeType.ALL)
@JsonIgnore
private Set<ModelNilai> nilai;
当我运行,,, 它使这个查询
Hibernate: select distinct m1_.id_makul as y0_ from tbl_nilai this_ inner join tbl_makul m1_ on this_.id_makul=m1_.id_makul where (this_.id_mhs=?) order by this_.id_nilai desc limit ?
Hibernate: select count(*) as y0_ from tbl_nilai this_ inner join tbl_makul m1_ on this_.id_makul=m1_.id_makul where (this_.id_mhs=?) order by this_.id_nilai desc limit ?
和错误发生 java.lang.ClassCastException:java.lang.Integer中不能转换到id.ac.undip.mlearning.model.ModelNilai
我走到哪里错了?我认为查询是正确的,但为什么它总是给我那个错误? 请帮忙,,
谢谢,,,我知道现在有什么错, 你能告诉我怎么做不同的投影吗? – Resi