public Map checkName(@RequestParam("param")String guanggao){

Map map = new HashMap();

List<TUser> u = uService.findByUname(uname);

if(u.size()>0){

map.put("status", "n");

map.put("info", "广告已不存在！");

}else{

map.put("status", "y");

map.put("info", "广告账号已永久封号！");

}

return map;

}