當我使用 spring 控制器和類進行 requestbody 繼承時，我的物件映射器不起作用。
@JsonTypeInfo(
use = JsonTypeInfo.Id.NAME,
include = JsonTypeInfo.As.PROPERTY,
property = "type", visible = true)
@JsonSubTypes({
@JsonSubTypes.Type(value = RecipeVersion.class, name = "recipe"),
@JsonSubTypes.Type(value = DietVersion.class, name = "diet"),
})
public interface DocumentVersion {
Info getInfo();
void setInfo(Info info);
}
并且
@Data
public class DietVersion implements DocumentVersion {
private LocalizedText warnings;
private List<DietDay> days = new LinkedList<>();
private Info info = new Info();
private String getType() {
return "diet";
}
}
好的。我有用于飲食和食譜的 BaseController
abstract public class BaseController<T extends Document<V>, V extends DocumentVersion> {
abstract protected BaseService<T, V> getService();
@PostMapping("/{docId}/version/last")
@ResponseStatus(HttpStatus.NO_CONTENT)
public void saveVersion(@PathVariable("docId") String docId, @RequestBody V version, Authentication authentication) {
getService().replaceLastVersion(docId, version, authentication);
}
}
和一些認識。飲食舉例
@Controller
@RequestMapping("/diet")
public class DietController extends BaseController<Diet, DietVersion> {
private final DietService dietService;
@Autowired
public DietController(DietService dietService) {
this.dietService = dietService;
}
@Override
protected DietService getService() {
return dietService;
}
@Override
public void saveVersion(String docId, DietVersion version, Authentication authentication) {
super.saveVersion(docId, version, authentication);
}
}
但是，當我將帶有資訊、天數、型別 ('diet') 的 json 發送到 '/diet/1/version/last' 時，我會在除錯模式下看到我的 DietVersion 純粹清晰并且沒有任何資料。為什么 ？
如何更改 objectmapper 的設定？
uj5u.com熱心網友回復：
如果您在 DietController 類中提供所有這些會怎樣。
public void saveVersion(@PathVariable("docId") String docId, @RequestBody V version, Authentication authentication){
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