快速学习AngularJs HTTP响应拦截器

request: function(config) {
// do something on request success
return config || $q.when(config);
} 

requestError: function(rejection) {
　　// do something on request error　　return $q.reject(rejection);
} 

response: function(response) {
　　// do something on response success
return response || $q.when(response);} 

responseError: function(rejection) {
// do something on response error　　return $q.reject(rejection);
} 

var app = angular.module("ajaxHttp", []);
app.factory("httpInterceptor", [ "$q", "$rootScope", function($q, $rootScope) {
return {
request: function(config) {
// do something on request success
return config || $q.when(config);
},
　　 requestError: function(rejection) {
　　　　 // do something on request error
　　　　 return $q.reject(rejection)
　　 },
response: function(response) {
// do something on response success
return response || $q.when(response);
},
responseError : function(rejection) {
// do something on response error
return $q.reject(rejection);
}
};
}]); 

app.config(["$httpProvider", function($httpProvider) {
　　$httpProvider.interceptors.push("httpInterceptor");
}]); 

app.config(["$httpProvider", function($httpProvider) { 
$httpProvider.interceptors.push('httpInterceptor'); 
}]); 
app.factory("httpInterceptor", ["$q", "$injector", function($q, $injector) {
return {
"responseError": function(response) {
if (response.status == 401) {
var rootScope = $injector.get('$rootScope');
var state = $injector.get('$rootScope').$state.current.name;
rootScope.stateBeforLogin = state;
rootScope.$state.go("login");
return $q.reject(response);
}
else if (response.status === 404) {
console.log("404!");
return $q.reject(response);
}
}
};
]);