java - Spring Data Rest 重写默认 GET 动词

Question

我正在尝试覆盖 API 的默认 GET 动词以添加一些更具体的详细信息。

我创建了一个restController和一个Get requestMapping:

@RequestMapping(method = RequestMethod.GET)
@ResponseBody
public ResponseEntity<Resources<User>> getUsers(Pageable pageable) {

    Page<User> users = userReposiotry.findAll(pageable);
    Resources<User> userResources = new Resources<>(users);

    return new ResponseEntity<Resources<User>>(userResources, HttpStatus.OK);
}

它工作得很好，但它不会返回链接和其他在不覆盖的情况下可用的附加信息。

自定义返回:

{
  "_embedded": {
    "users": [
      {
        "id": 1,
        "username": "admin",
        "registrationDate": "2015-11-18T21:04:54.000+0000",
        "name": "Admin",
        "email": "<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="2b4a4f4642456b4a4f46424505484446" rel="noreferrer noopener nofollow">[email protected]</a>",
        "enabled": true,
        "dateOfBirth": "2015-11-18",
        "imageIdentifier": null,
        "confirmationKey": ""
      }]
  }
}

而原文:

{
  "_embedded": {
    "users": [
      {
        "id": 1,
        "username": "admin",
        "registrationDate": "2015-11-18T21:04:54.000+0000",
        "name": "Admin",
        "email": "<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="9cfdf8f1f5f2dcfdf8f1f5f2b2fff3f1" rel="noreferrer noopener nofollow">[email protected]</a>",
        "enabled": true,
        "dateOfBirth": "2015-11-18",
        "imageIdentifier": null,
        "confirmationKey": "",
        "_links": {
          "self": [
            {
              "href": "http://localhost:8080/api/users/1"
            },
            {
              "href": "http://localhost:8080/api/users"
            }
          ],
          "user": {
            "href": "http://localhost:8080/api/users/1{?projection}",
            "templated": true
          },
          "inviteToApps": {
            "href": "http://localhost:8080/api/users/1/inviteToApps"
          },
          "userRoles": {
            "href": "http://localhost:8080/api/users/1/userRoles"
          },
          "currencyTokens": {
            "href": "http://localhost:8080/api/users/1/currencyTokens"
          },
          "workoutAttendees": {
            "href": "http://localhost:8080/api/users/1/workoutAttendees"
          }
        }
      }
    ]
  },
  "_links": {
    "self": {
      "href": "http://localhost:8080/api/users"
    },
    "profile": {
      "href": "http://localhost:8080/api/profile/users"
    },
    "search": {
      "href": "http://localhost:8080/api/users/search"
    }
  },
  "page": {
    "size": 20,
    "totalElements": 7,
    "totalPages": 1,
    "number": 0
  }
}

如何像原来那样将关系添加到自定义关系？

Answer 1

只需返回自定义 Bean、Map 等，而不是 ResponseEntity:

@ResponseBody
@RequestMapping(method = RequestMethod.GET)
public Object getUsers(Pageable pageable) {

    Page<User> users = userReposiotry.findAll(pageable);
    Resources<User> userResources  = new Resources<>(users);

    List<MyCustomUser> customUsers = [...]

    return customUSers;
}

// "some more specific details" in MyCustomUser
public class MyCustomUser extends User{

    private List<Links> links;

    // TODO: constructor, getter, setter.
}