{
Map<String, Object> params = super.getRequestParameters(request);
Object parentId = params.get("pid");
DistrictCriteria distinctCriteria = new DistrictCriteria();
Criteria criteria = distinctCriteria.createCriteria();
criteria.andParentIdIsNotNull();
criteria.andParentIdEqualTo(Long.parseLong((String) parentId));
list = districtService.findByCriteria(distinctCriteria);
return "showSetSubDist";
}