如何在 Jax-rs 中将 JSON 对象添加到我的 JSON 响应中？

Question

我的主要资源文件

public class MyResource {


@GET
@Produces(MediaType.APPLICATION_JSON)
@Path("/getAll")
public List<hotels> getResources() throws IOException {
    hotelServices services = new hotelServices();
    return services.getAllHotels();

}}

这就是我赋值和返回列表的方式

public class hotelServices {

public List<hotels> getAllHotels() throws IOException

{
    List<hotels> list = new ArrayList<hotels>();    


        String ID =  "73";
        String HoteName = "KKR"
        String Location = "Kelambakkam"
        String Ratings = "2"
        String Landmark = "Opp to R&G"
        hotels thisHotel = new hotels(ID,HotelName,Location,Ratings,Landmark);
        list.add(thisHotel);
        return list;
}   }

下面是我的构造函数 hotels 的样子

public hotels(String id, String hotelName,String location, String ratings, String landmark)
{

    this.id = id;
    this.hotelName = hotelName;
    this.location=location;
    this.ratings = ratings;
    this.landmark = landmark;
}

我收到类似这样的回复

[{  
  "hotelName":" KKR",
  "id":" 73",
  "landmark":" Opp to R&G",
  "location":" Kelambakkam",
  "ratings":" 2"
}]

我正在尝试用 Json 对象生成这样的东西，但我无法做到。有什么可以帮助我的吗？？

{"hotels":[{  
  "hotelName":" KKR",
  "id":" 73",
  "landmark":" Opp to R&G",
  "location":" Kelambakkam",
  "ratings":" 2"
 }]}

Answer 1

您期望的是 List<Hotels> 的包装器，您可以为其定义一个模型，比如您已经存在的模型 - HotelServices as -

class HotelServices {
    List<Hotels> hotels; // do all the logic of setting this value as you currently do
 }

并将您的资源修改为：

@GET
@Produces(MediaType.APPLICATION_JSON)
@Path("/getAll")
public HotelServices getResources() throws IOException {
    HotelServices services = new HotelServices(); // assuming you would assign value to this 
    return services;
}}

注意：我重命名以尝试遵循更好的命名约定。

如何在 Jax-rs 中将 JSON 对象添加到我的 JSON 响应中？

How to add JSON object to my JSON response in Jax-rs?

java

jax-rs

jersey