为什么在angular js中使用resolve时出现错误？

Question

I am trying to use resolve .Mean I need to get data from service before loading the controller and view .I found some line how to use resolve .

I an not getting error in my project when I remove resolve statement

.state('a', {
      url: "/a",
      templateUrl: "a.html",
          controller: 'a',
          // resolve:{
          //   messsage:function(testservice){
          //     return testservice.getdata();
          //   }
          //}
      })

when I uncomment the resolve statement I got this error

**Error: [$rootScope:infdig] 10 $digest() iterations reached. Aborting!
Watchers fired in the last 5 iterations: []
http://errors.angularjs.org/1.3.13/$rootScope/infdig?p0=10&p1=%5B%5D
    at REGEX_STRING_REGEXP (ionic.bundle.js:8762)
    at Scope.promises.$get.Scope.$digest (ionic.bundle.js:22980)
    at Scope.promises.$get.Scope.$apply (ionic.bundle.js:23205)
    at done (ionic.bundle.js:18358)
    at completeRequest (ionic.bundle.js:18548)
    at XMLHttpRequest.requestLoaded (ionic.bundle.js:18489)(anonymous function) @ ionic.bundle.js:20306jqNodes.$get @ ionic.bundle.js:17256promises.$get.Scope.$apply @ ionic.bundle.js:23207done @ ionic.bundle.js:18358completeRequest @ ionic.bundle.js:18548requestLoaded @ ionic.bundle.js:18489
ionic.bundle.js:8762 Uncaught Error: [$rootScope:infdig] 10 $digest() iterations reached. Aborting!
Watchers fired in the last 5 iterations: []
http://errors.angularjs.org/1.3.13/$rootScope/infdig?p0=10&p1=%5B%5DREGEX_STRING_REGEXP @ ionic.bundle.js:8762promises.$get.Scope.$digest @ ionic.bundle.js:22980promises.$get.Scope.$apply @ ionic.bundle.js:23205done @ ionic.bundle.js:18358completeRequest @ ionic.bundle.js:18548requestLoaded @ ionic.bundle.js:18489
ionic.bundle.js:20306 Error: [$rootScope:infdig] 10 $digest() iterations reached. Aborting!
Watchers fired in the last 5 iterations: []
http://errors.angularjs.org/1.3.13/$rootScope/infdig?p0=10&p1=%5B%5D
    at REGEX_STRING_REGEXP (ionic.bundle.js:8762)
    at Scope.promises.$get.Scope.$digest (ionic.bundle.js:22980)
    at Scope.promises.$get.Scope.$apply (ionic.bundle.js:23205)
    at done (ionic.bundle.js:18358)
    at completeRequest (ionic.bundle.js:18548)
    at XMLHttpRequest.requestLoaded**

here is my code http://plnkr.co/edit/fk7IGcYlDfZasWqzy31S?p=preview

I am trying to load data from service before using in controller and before loading to view

Answer 1

Use the good syntax for your service

factory('testservice', ['$http',
    function testservice($http) {

Fetch the data in your controller :

$scope.data = testservice.getdata();

The plnk : http://plnkr.co/edit/2EskRAzVPo8lhXyaLFuy?p=preview

Then you should consider backing your data in the service so you call $http.get("data.json") one time.