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);
$scope.hasDependencies = hasDependencies;
});
}
]);
在Chromium浏览器调试窗格中,网络标题选项卡显示: 远程地址:127.0.0.1:8443 请求URL:xxxxx:8443 / project-rest / technologies / 4 / dependencies 请求方法:GET 状态代码:200 OK 响应标题来源 访问控制允许报头:接受语言,内容类型,X-要求,随着接受,原产地,访问控制请求法,访问控制请求报头,授权 访问控制允许方法:POST,PUT,GET,OPTIONS,DELETE 访问控制允许来源:XXXXX:9000 访问控制 - 最大 - 年龄:3600 Cache-Control:no-cache,no-store,max-age = 0,must-revalidate 内容类型:应用/ JSON;字符集= UTF-8 日期:太阳,2014年10月19日07:47:59 GMT 过期:0 附注:无缓存 服务器:Apache-狼/ 1.1 严格运输安全:max-age = 31536000; includeSubDomains 传输编码:分块 X-Content-Type的选项:nosniff X框选项:DENY X-XSS-保护:1;模式=块
网络响应标签显示: 假
答案 0 :(得分:3)
我使用了一个包装类:
public class ValueResource {
private Object value;
public ValueResource(Object value) {
this.value = value;
}
public Object getValue() {
return value;
}
public void setValue(Object value) {
this.value = value;
}
}
现在我可以返回一个响应实体:
return new ResponseEntity<ValueResource>(new ValueResource(hasDependencies), responseHeaders, HttpStatus.OK);
这给了我一个布尔值:
TechnologyService.hasDependencies($stateParams.technologyId, function(data) {
console.log("hasDependencies", data.value);
});