如何在 spring 引導中將 JSON hasmasp 綁定到 @RequestBody

Question

我想綁定這個 JSON 結構{ "male": { "id": "0001", "name": "Emma", "pet": "dog" }, "female": { "id": "0001", "name": "Cilia", "pet": "cat" } }到 java HashMap 數據結構使用 spring 引導。 但是，spring 引導無法綁定它，但如果我收到 json 作為字符串並將其手動綁定到 hashmap 它將成功。 她是 HashMap

public class Tickets {

    private HashMap<String, PeopleType> peopleTypes = new HashMap();
}

public class PeopleType {

    private String id;

    private String name;

    private String pet;
}

這是 controller

@PostMapping("/url")
public ResponseEntity bookTickets(@RequestBody Tickets tickets, HttpSession session) {
...
}

為簡潔起見，我刪除了所有 Getter 和 Setter

Answer 1

嘗試這個：

@PostMapping("/url")
public ResponseEntity bookTickets(@RequestBody Map<String, PeopleType> peopleTypes, HttpSession session) {
    Tickets tickets = new Tickets();
    tickets.setPeopleTypes(peopleTypes);
    ...
}

或者試試這個：

public class Tickets {
    private Map<String, PeopleType> peopleTypes = new HashMap<>();

    @JsonAnySetter
    public void addPeopleType(String type, PeopleType peopleType) {
        peopleTypes.put(type, peopleType);
    }
}

@PostMapping("/url")
public ResponseEntity bookTickets(@RequestBody Tickets tickets, HttpSession session) {
    ...
}