Question

我正在尝试在响应中返回一个布尔值。但它在我的AngularJS应用程序中以一系列字符的形式返回：

资源{0：“f”，1：“a”，2：“l”，3：“s”，4：“e”，$ promise：对象，$ resolve：true，$ get：function， $ save：function，$ query：function ...}

这是控制器：

@RequestMapping(value = RESTConstants.SLASH + "{id}" + RESTConstants.SLASH + RESTConstants.DEPENDENCIES, method = RequestMethod.GET)
@ResponseBody
public ResponseEntity<Boolean> hasDependencies(@PathVariable Long id, UriComponentsBuilder builder) {
    HttpHeaders responseHeaders = new HttpHeaders();
    Technology technology = technologyService.findById(id);
    if (technology == null) {
        return new ResponseEntity<Boolean>(responseHeaders, HttpStatus.NOT_FOUND);
    } else {
        Boolean hasDependencies = technologyService.hasDependencies(id);
        responseHeaders.setLocation(builder.path(RESTConstants.SLASH + RESTConstants.TECHNOLOGIES + RESTConstants.SLASH + "{id}" + RESTConstants.DEPENDENCIES).buildAndExpand(technology.getId()).toUri());
        return new ResponseEntity<Boolean>(hasDependencies, responseHeaders, HttpStatus.OK);
    }
}

与此控制器的响应相同：

@RequestMapping(value = RESTConstants.SLASH + "{id}" + RESTConstants.SLASH + RESTConstants.DEPENDENCIES, method = RequestMethod.GET)
@ResponseBody
public boolean hasDependencies(@PathVariable Long id, UriComponentsBuilder builder) {
    Technology technology = technologyService.findById(id);
    if (technology == null) {
        return false;
    } else {
        return technologyService.hasDependencies(id);
    }
}

这是AngularJS代码：

'use strict';
utilsModule.factory('RESTService',
  ['$resource', 'ENV', 'FileUploader', 'AuthService',
  function($resource, ENV, FileUploader, AuthService) {
    return {
      Technology: $resource(ENV.NITRO_PROJECT_REST_URL + '/technologies/:technologyId', {}, {
        hasDependencies: {
          url: ENV.NITRO_PROJECT_REST_URL + '/technologies/:technologyId/dependencies',
          method: 'GET',
          params: { technologyId: 'technologyId' }
        }
      })
    }
  }
]);

'use strict';
technologyModule.factory('TechnologyService',
  ['RESTService',
  function(RESTService) {
    var factory = {};
    factory.hasDependencies = function(technologyId, callback) {
      return RESTService.Technology.hasDependencies({technologyId: technologyId}).$promise.then(callback);
    }
    return factory;
  }
]);

'use strict';
technologyModule.controller('technology.deleteCtrl',
  ['$scope', '$state', '$stateParams', 'TechnologyService',
  function($scope, $state, $stateParams, TechnologyService) {
    $scope.hasDependencies = true;
    TechnologyService.hasDependencies($stateParams.technologyId, function(hasDependencies) {
      console.log("hasDependencies", hasDependencies);
      $scope.hasDependencies = hasDependencies;
    });
  }
]);

在Chromium浏览器调试窗格中，网络标题选项卡显示：远程地址：127.0.0.1：8443 请求URL：xxxxx：8443 / project-rest / technologies / 4 / dependencies 请求方法：GET 状态代码：200 OK 响应标题来源访问控制允许报头：接受语言，内容类型，X-要求，随着接受，原产地，访问控制请求法，访问控制请求报头，授权访问控制允许方法：POST，PUT，GET，OPTIONS，DELETE 访问控制允许来源：XXXXX：9000 访问控制 - 最大 - 年龄：3600 Cache-Control：no-cache，no-store，max-age = 0，must-revalidate 内容类型：应用/ JSON;字符集= UTF-8 日期：太阳，2014年10月19日07:47:59 GMT 过期：0 附注：无缓存服务器：Apache-狼/ 1.1 严格运输安全：max-age = 31536000; includeSubDomains 传输编码：分块 X-Content-Type的选项：nosniff X框选项：DENY X-XSS-保护：1;模式=块

网络响应标签显示：假

Answer 1

我使用了一个包装类：

public class ValueResource {

    private Object value;

    public ValueResource(Object value) {
        this.value = value;
    }

    public Object getValue() {
        return value;
    }

    public void setValue(Object value) {
        this.value = value;
    }

}

现在我可以返回一个响应实体：

return new ResponseEntity<ValueResource>(new ValueResource(hasDependencies), responseHeaders, HttpStatus.OK);

这给了我一个布尔值：

TechnologyService.hasDependencies($stateParams.technologyId, function(data) {
  console.log("hasDependencies", data.value);
});

Spring REST将布尔实体返回给AngularJS ...作为字符数组出现

1 个答案: