Javascript Angular JS和Spring-如何过滤JSON对象

我尝试使用JHipster框架，通过Angular JS和Java Spring将一个JSON对象从前端放到后端。我的JSON对象如下所示：

{
"anzahl": 0,
"category": 0,
"id": 0,
"parkraumId": 0,
"timestamp": "2016-09-07T12:59:04.290Z",
"wochentag": 0
}

但是要通过Spring存储库方法

createCrowdsource（crowdsource）

将其保存在数据库中，我需要过滤掉

wochentag

和

anzahl

的值，以获得以下JSON对象：

{
"category": 0,
"id": 0,
"parkraumId": 0,
"timestamp": "2016-09-07T12:59:04.290Z"
}

我尝试在下面的Angular JS控制器中指定

字段：“category”、“id”、“parkraumId”、“timestamp”

，并使用

@RequestParam String fields

在Spring资源中获取此参数，但不知怎的，它不起作用

角度控制器：

function save() {
            vm.isSaving = true;
            if (vm.crowdsource.id !== null) {
                //JSON needs these two attributes

                console.log('Updating!')
                Crowdsource.update(vm.crowdsource, onSaveSuccess, onSaveError, {fields: 'category', 'id', 'parkraumId', 'timestamp'});
            } else {

                Crowdsource.save(vm.crowdsource, onSaveSuccess, onSaveError);
            }
        }

save()

角度服务：

(function () {
    'use strict';
    angular
        .module('bahnApp')
        .factory('Crowdsource', Crowdsource);

    Crowdsource.$inject = ['$resource', 'DateUtils'];

    function Crowdsource($resource, DateUtils) {
        var resourceUrl = 'api/crowdsources/:siteId';

        return $resource(resourceUrl, {}, {
            'query': {method: 'GET', isArray: true},
            'get': {
                method: 'GET',
                transformResponse: function (data) {
                    if (data) {
                        data = angular.fromJson(data);
                        data.timestamp = DateUtils.convertDateTimeFromServer(data.timestamp);
                    }
                    return data;
                }
            },
            'update': {
                method: 'PUT',

            }
        });
    }


})();

Spring资源：

/**
 * PUT  /crowdsources : Updates an existing crowdsource.
 *
 * @param crowdsource the crowdsource to update
 * @return the ResponseEntity with status 200 (OK) and with body the updated crowdsource,
 * or with status 400 (Bad Request) if the crowdsource is not valid,
 * or with status 500 (Internal Server Error) if the crowdsource couldnt be updated
 * @throws URISyntaxException if the Location URI syntax is incorrect
 */
@RequestMapping(value = "/crowdsources",
    method = RequestMethod.PUT,
    produces = MediaType.APPLICATION_JSON_VALUE)
@Timed
public ResponseEntity<Crowdsource> updateCrowdsource(@RequestParam String fields, @RequestBody Crowdsource crowdsource) throws URISyntaxException {
    log.debug("REST request to update Crowdsource : {}", crowdsource);
    log.debug(crowdsource.toString());
    if (crowdsource.getId() == null) {

        return createCrowdsource(crowdsource);
    }
    Crowdsource result = crowdsourceRepository.save(crowdsource);
    crowdsourceSearchRepository.save(result);
    return ResponseEntity.ok()
        .headers(HeaderUtil.createEntityUpdateAlert("crowdsource", crowdsource.getId().toString()))
        .body(result);
}

---

为了避免持久化这些值，可以在

众源

实体中使用

@javax.persistence.Transient

注释对它们进行注释。为了持久性，这些将被忽略

@Transient
private Integer anzahl; 

@Transient
private Integer wochentag

---

你能分享众源类的代码吗？是的，我已经添加了。

@Transient
private Integer anzahl; 

@Transient
private Integer wochentag