带有 ember 命名空间的 JSON 视图

Question

我正在使用spring mvc和org.springframework.web.servlet.view.json.MappingJackson2JsonView从控制器返回json对象，要与ember RestAdapter集成，我需要返回带有命名空间的json。我该怎么做？目前我有以下控制器，它返回一个对象 (JSON(，它可以是客户 ID 列表或客户对象列表，

@RequestMapping(method = RequestMethod.GET)
@ResponseBody
public Object getCustomer(HttpServletRequest request, HttpServletResponse response) {
   if (request.getQueryString()!=null){
       List<Integer> customerIdList = new ArrayList<Integer>();
       customerIdList = customerDao.findAllCustomerIds();
       return customerIdList;
   } else {
       List<Customer> customerList = new ArrayList<Customer>();
       customerList = customerDao.findAllCustomers();
       return customerList ;
   }
}

我得到的输出是，

如果我包含一个查询字符串，

[ 1,2,3 ] 

还

[ {
    id: "1",
    name: "ABC Pty Ltd"
  },
  { 
    id: "2",
    name: "XYZ Ltd"
  },
  {
    id: "3",
    name: "Hello "
   }
 ]

我想要的结果是，

if I include query string,
 { customers : [ 1,2,3 ] };
else 
 { customers : [
                {
                   id: "1",
                   name: "ABC Pty Ltd"
                 },
                { 
                   id: "2",
                   name: "XYZ Ltd"
                 },
                {
                   id: "3",
                   name: "Hello "
                 }
               ]
 }

我怎样才能做到这一点？

Answer 1

尝试将结果放入地图中：

Map<String, List> result = new HashMap<>();      
if (request.getQueryString() != null) {
    List<Integer> customerIdList = customerDao.findAllCustomerIds();
    result.put("customers", customerIdList);
} else {
    List<Customer> customerList = customerDao.findAllCustomers();
    result.put("customers", customerList);
}
return result;

另外请注意，您的GET可以返回两个不同的东西(ID列表或自定义列表(。这可能表示 API 设计中有异味。