springmvc从数据库中读取数据并且显示成选择框

@RequestMapping(value = "/roleList/{userUuid}", method = RequestMethod.GET)
@ResponseBody
public String getAllRoles(@PathVariable("userUuid") String userUuid) {
RestEasyResponse<AccountRoleListResponse> restEasyResponse =accountAPI.getAllRoles();
AccountRoleListResponse allRoles = restEasyResponse.getEntity();
RestEasyResponse<AccountRoleListResponse> restEasyRsp =accountAPI.getUserRoles(userUuid);
AccountRoleListResponse userRoles = restEasyRsp.getEntity();
JSONObject object = new JSONObject();
if(allRoles.getList()!=null&&userRoles.getList()!=null){
object.put("success", true);
List<Map<String,Object>> list = new ArrayList<Map<String, Object>>();
for(AccountRoleResponse x:allRoles.getList()) {
Map<String, Object> item = new HashMap<String , Object>();
String id = x.getUuid();
String name = x.getName();
String pId = null;
item.put("id", id == null?"":id.trim());
item.put("name", name == null?"":name.trim());
item.put("pId", pId == null?"":pId.trim());
item.put("open", false);

AccountRoleResponse checked = null;
for(AccountRoleResponse y:userRoles.getList()) {
if(x.getUuid().equals(y.getUuid())) {
item.put("checked", true);
checked = y;
}
}
userRoles.getList().remove(checked);

list.add(item);
}
object.put("dimList", list);
} else {
object.put("success", false);
object.put("msg", "获取数据失败");
}
return object.toString();
}