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HQL多种查询实现
1、返回int
public int countByUsername(String username) { String hql = "select count(*) from BeanCarUser bean where bean.userName=:username"; Query query = getSession().createQuery(hql); query.setParameter("username", username); return ((Number) query.iterate().next()).intValue(); }
2、返回list集合
@SuppressWarnings("unchecked") public List<CmsZfysj> findByZqmj(String zqmj, Date clsj) { Finder f = Finder.create("from CmsZfysj bean where 1=1 "); if (null != zqmj && !"".equals(zqmj)) { f.append(" and bean.police_id like :zqmj"); f.setParam("zqmj", "%" + zqmj + "%"); } if (null != clsj && !"".equals(clsj)) { SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd"); f.append(" and TO_CHAR(bean.import_time,‘yyyy-MM-dd‘) >= ‘" + df.format(clsj) + "‘"); } if (null != clsj && !"".equals(clsj)) { SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd"); f.append(" and TO_CHAR(bean.capture_time,‘yyyy-MM-dd‘) <= ‘" + df.format(clsj) + "‘"); } return find(f); }
3、多表关联查询返回List
(1)多表关联查询list
@SuppressWarnings("unchecked") public List<BeanCompanyEmp> getListCompanyIsNull(BeanCompanyEmp beanCompanyEmpParam) { StringBuffer sql = new StringBuffer(); sql.append(" select "); sql.append(" cemp.id ,cemp.doc_no ,jux.mobile ,jux.comefrom,jux.realname,jr.role_name ,cemp.latitude latitude ,cemp.longitude longitude "); sql.append(" from company_emp cemp, "); sql.append(" jc_user jc, "); sql.append(" jc_user_ext jux, "); sql.append(" jc_role jr, "); sql.append(" jc_user_role jur "); sql.append(" where cemp.id = jc.user_id "); sql.append(" and cemp.id = jux.user_id "); sql.append(" and jur.user_id = jc.user_id "); sql.append(" and jur.role_id = jr.role_id "); sql.append(" and cemp.belong_company is null "); String sqls = sql.toString(); Query query = sessionFactory.getCurrentSession().createSQLQuery(sqls.toString()); List list = query.list(); List<BeanCompanyEmp> result=new ArrayList<BeanCompanyEmp>(); if(list!=null&&list.size()>0){ for (Object object : list) { int i = 0; BeanCompanyEmp modell=new BeanCompanyEmp(); Object[] temp = (Object[]) object; modell.setId(Integer.parseInt( temp[i++] +"")); modell.setDoc_no(String.valueOf(temp[i++])); modell.setMobile(String.valueOf(temp[i++])); modell.setComefrom(String.valueOf(temp[i++])); modell.setRealName(String.valueOf(temp[i++])); modell.setRoleNames(String.valueOf(temp[i++])); modell.setLatitude(String.valueOf(temp[i++])); modell.setLongitude(String.valueOf(temp[i++])); result.add(modell); } } return result; }
(2)多表查询带分页功能
public Pagination getLookPage(BeanCompanyEmp beanCompanyEmpParam, int pageNo, int pageSize) { Pagination pagination = new Pagination(); StringBuffer sql = new StringBuffer(); sql.append(" select "); sql.append(" cemp.id id,cemp.doc_no doc_no,jux.mobile mobile,jux.comefrom comefrom,jux.realname realname,jr.role_name role_name "); sql.append(" from company_emp cemp, "); sql.append(" jc_user jc, "); sql.append(" jc_user_ext jux, "); sql.append(" jc_role jr, "); sql.append(" jc_user_role jur "); sql.append(" where cemp.id = jc.user_id "); sql.append(" and cemp.id = jux.user_id "); sql.append(" and jur.user_id = jc.user_id "); sql.append(" and jur.role_id = jr.role_id "); sql.append(" and cemp.belong_company is null "); //TODO这最好查询角色名称 if(beanCompanyEmpParam.getDoc_no() != null && beanCompanyEmpParam.getDoc_no() != ""){ sql.append(" and cemp.doc_no like ‘%"+beanCompanyEmpParam.getDoc_no()+"%‘" ); } if(beanCompanyEmpParam.getRealName() != null && beanCompanyEmpParam.getRealName() != ""){ sql.append(" and jux.realname like ‘%"+beanCompanyEmpParam.getRealName()+"%‘" ); } String sqls = sql.toString(); Query query = sessionFactory.getCurrentSession().createSQLQuery(sqls.toString()); List list = query.list(); List<BeanCompanyEmp> result=new ArrayList<BeanCompanyEmp>(); if(list!=null&&list.size()>0){ for (Object object : list) { int i = 0; BeanCompanyEmp modell=new BeanCompanyEmp(); Object[] temp = (Object[]) object; modell.setId(Integer.parseInt( temp[i++] +"")); modell.setDoc_no(String.valueOf(temp[i++])); modell.setMobile(String.valueOf(temp[i++])); modell.setComefrom(String.valueOf(temp[i++])); modell.setRealName(String.valueOf(temp[i++])); modell.setRoleNames(String.valueOf(temp[i++])); result.add(modell); } } pagination.setList(result); pagination.setPageNo(pageNo); pagination.setPageSize(pageSize); return pagination; }
4、获取参数Collection集合
/** * 获取参数类型集合 */ @SuppressWarnings("unchecked") public Collection<Object> getList() { Finder f = Finder.create("select distinct bean.paramType from BeanParamManager bean where bean.dataStatus=0 and bean.sslx =‘中心参数‘"); return find(f); }
5、返回值是void
public void insertDayModel(Integer dayNo){ List<Object> list = dayDao.selectParkno(); for (Object b : list) { String parkNo = b.toString(); BeanDayTraffic bean = new BeanDayTraffic(); bean.setParkno(parkNo); Date date = new Date(); Calendar calendar = Calendar.getInstance(); calendar.setTime(date); calendar.add(Calendar.DAY_OF_MONTH, +dayNo);//+1今天的时间加一天 date = calendar.getTime(); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); String sDate = sdf.format(date); try { Date dbDate = sdf.parse(sDate); bean.setDay_time(dbDate); } catch (ParseException e) { // TODO Auto-generated catch block System.out.println(e); } bean.setTypes("Day"); bean.setTime1(0); bean.setTime2(0); bean.setTime3(0); bean.setTime4(0); bean.setTime5(0); bean.setTime6(0); dayDao.save(bean); } }
HQL多种查询实现
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