angularjs 如何在controller中使用service

Question

Service代码：app.service('getTicketList',function($q,$http){this.data={};this.getData=function(id){vardeferred=$q.defer();varpath='ticket.action?method:projectTickets';if(id)path+='&projectId='+id.toString();$http.get(path).then(function(d){//successthis.data=d;deferred.resolve(d);},function(){//failuredeferred.reject(d);});}});controller代码：app.controller('projectController',function($scope,getTicketList){$scope.tickets=getTicketList.getData($scope.projectId).data.tickets;});controller的那句代码有问题。我用getTicketList.data也获取不到数据，是{}。而且不知道怎么把参数传进去。。。。