Unable to parse JSON with AngularJS
Question
I have just started with AngularJS and tried a very basic example. The webpage contains a button, on click of which I request a json from the server. But whenever, I click the button, the code executes the portion in the error function.
HTML file
<!DOCTYPE html>
<head>
<title> step 4</title>
</head>
<body ng-app="step4App">
<div ng-controller="FriendsCtrl">
<button ng-click="loadFriends()">Load Friends</button>
</div>
<script src="angular.min.js"></script>
<script src="xml2json.js"></script>
<script src = "step4.js"></script>
</body>
</html>
JS
var app = angular.module("step4App",[]);
app.controller("FriendsCtrl", function($scope,$http) {
$scope.loadFriends = function(){
$http({method:'GET',url:'http://localhost:8080/test.jsp', params:{name:"abc",no:"LBF1151638"}}).success(function(data) {
$scope.friends = data;
document.write('<p>two</p>');
document.write(data);
}).error(function() {
alert("error");
});
}
});
The jsp page as of now is returning this json response.
{"response":{"numFound":0,"start":0,"docs":[]}}
But I am not able to understand, why it always executes the error function.
I checked in the browser Console that a request is being made and a 47byte response is received (equal to the no of characters in the JSON). But it doesn't print the JSON.
1 answers
solution1
1 2014-02-24 01:06:05
There could be something wrong happening on the server. Try opening the page with FireFox + Firebug and inspect the server response to make sure it's what you expect (check the status code and the Content-Type response header).
You can also run from a command line do a curl -v http://localhost:8080/test.jsp .
BTW Angular passes you extra parameters in the callbacks. Try alert-ing them too see what they are. From http://docs.angularjs.org/api/ng/service/$http:
$http({method: 'GET', url: '/someUrl'}).
success(function(data, status, headers, config) {
// this callback will be called asynchronously
// when the response is available
}).
error(function(data, status, headers, config) {
// called asynchronously if an error occurs
// or server returns response with an error status.
});
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