HQL和Criteria

HQL:

public boolean doCreate(Dept vo) throws Exception {
return this.sessionFactory.getCurrentSession().save(vo) != null;
} @Override
public boolean doUpdate(Dept vo) throws Exception {
String hql = "UPDATE Dept AS d SET d.title=? WHERE d.deptid=?";
Query query = this.sessionFactory.getCurrentSession().createQuery(hql);
query.setString(0, vo.getTitle());
query.setInteger(1, vo.getDeptid());
return query.executeUpdate() > 0;
} @Override
public boolean doRemove(Integer id) throws Exception {
String hql = "DELETE FROM Dept AS d WHERE d.deptid=?";
Query query = this.sessionFactory.getCurrentSession().createQuery(hql);
query.setInteger(0, id);
return query.executeUpdate() > 0;
} @Override
public Dept findById(Integer id) throws Exception {
return (Dept) this.sessionFactory.getCurrentSession().get(Dept.class,
id);
}
@SuppressWarnings("unchecked")
@Override
public List<TCatalogInfo> findAll() throws Exception {
String hql = "FROM TCatalogInfo AS tc";
Query query = this.sessionFactory.getCurrentSession().createQuery(hql);
return query.list();
}
@SuppressWarnings("unchecked")
@Override //分页
public List<TCatalogInfo> findAll(String column, String keyWord,
Integer currentPage, Integer lineSize) throws Exception {
String hql = "FROM TCatalogInfo AS tc WHERE tc." + column + " LIKE ?";
Query query = this.sessionFactory.getCurrentSession().createQuery(hql);
query.setString(0, "%" + keyWord + "%");//查询的关键字
query.setFirstResult((currentPage - 1) * lineSize);//开始页
query.setMaxResults(lineSize);//最大加载的页数
return query.list();
} @Override
public Integer getAllCount(String column, String keyWord) throws Exception {
String hql = "SELECT COUNT(tc.cid) FROM TCatalogInfo AS tc WHERE tc."
+ column + " LIKE ?";
Query query = this.sessionFactory.getCurrentSession().createQuery(hql);
query.setString(0, "%" + keyWord + "%");
return ((Long) query.uniqueResult()).intValue();
}

  

Criteria:

public List<Admin> findAll() throws Exception {
Criteria criteria = this.sessionFactory.getCurrentSession()
.createCriteria(Admin.class);
return criteria.list();
} @SuppressWarnings("unchecked")
@Override
public List<Admin> findAll(String column, String keyWord,
Integer currentPage, Integer lineSize) throws Exception {
Criteria criteria = this.sessionFactory.getCurrentSession()
.createCriteria(Admin.class);
criteria.add(Restrictions.like(column, "%" + keyWord + "%"));
criteria.setFirstResult((currentPage - 1) * lineSize);
criteria.setMaxResults(lineSize);
return criteria.list();
} @Override
public Integer getAllCount(String column, String keyWord) throws Exception {
Criteria criteria = this.sessionFactory.getCurrentSession()
.createCriteria(Admin.class);
ProjectionList plist = Projections.projectionList();
plist.add(Projections.rowCount(), "count");
criteria.setProjection(plist); // 增加统计函数集合
criteria.add(Restrictions.like(column, "%" + keyWord + "%"));
return ((Long) criteria.uniqueResult()).intValue();
}

  

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