函数中的$ http.get方法

你可以使用$ q的'all'功能:

    var a = $http.get(DataElementUrl).then(function (response) {
        if (!response.data == "")
        dataElementJson = response.data;

    });
    var b = $http.get(categoryComboUrl).then(function (response) {
            if (!response.data == "")
                categoryComboJson = response.data;                   
    });
    var c = $http.get(categoryUrl).then(function (response) {
                if (!response.data == "")
                   categoryJson = response.data;                        
    });

    $q.all([a, b,c]).then(function(result) {
      check++;
      $scope.getJson();
    });