我试图捕获角度资源的HTTP错误状态代码(！= 200).
我的服务,我有资源定义：
(apiService.js)
我的服务,我有资源定义：
(apiService.js)
.factory('ApiService',function($resource,$http,localStorageService,CONFIG) {
var base_api_url = api_url = CONFIG.api_url,api_version_prefix = CONFIG.api_version_prefix;
return {
userDevices: $resource(api_url+'/requestRegistration/userDevices/:action',{},{
registerDevice: {
method: 'POST',params: {
action: ''
}
},verify: {
method: 'POST',params: {
action: 'verify'
}
},}
}
});
我的控制器代码：
.controller('LoginCtrl',function(CONFIG,$scope,$state,$ionicPlatform,$ionicPopup,ApiService) {
$scope.data = {
username: null
};
$scope.registerDevice = function() {
if($scope.data.username) {
var authenticationResponse = ApiService.userDevices.registerDevice({
username: $scope.data.username
});
authenticationResponse.$promise.then(function(result) {
// this is always fired,even then response code is 400 or 503 :( I am not able to check response status code.
console.log(result);
console.log('success!');
},function(error){
// this code is not being exectued even when response status code is different then 200
// its never executed at all :(
console.log('error!');
});
}
};
});
当我发送请求并收到响应代码400/503时,我认为应该执行功能(错误)代码,但事实并非如此.
相反,我的$promise.then中的代码(函数(结果)(…)被执行,我无法检测响应HTTP状态代码.
所以,我的问题：
解决方法
第一个.catch将拒绝转换为已完成.为防止转换,.catch方法需要抛出错误.
authenticationResponse.$promise.catch(function(error){
alert('catched error!!!');
//throw to chain error
throw error;
}).then(function(result) {
// this is always fired,even then response code is 400 or 503 :(
console.log(result);
console.log('success!');
//return to chain data
return result
},function(error){
// This should be executed when status code is different then 200?
// its never executed at all :(
console.log('error!');
//throw to chain rejection
throw error;
});
当函数省略return或throw语句时,它返回undefined. $q服务创建派生的promise,解析为undefined.
诊断ngResource问题
userDevices: $resource(api_url+'/requestRegistration/userDevices/:action',{
registerDevice: {
method: 'POST',params: {
action: ''
},interceptor: {
response: function (response) {
console.log("registerDevice success");
console.log(response.status);
return response;
},errorResponse: function (errorResponse) {
console.log("registerDevice error");
console.log(errorResponse.status);
throw errorResponse;
}
}
},verify: {
method: 'POST',
要寻找的另一件事是App中的其他$http interceptors通过省略throw语句来转换响应.
