angularjs http设置headers

想使用angularjs里的htpp向后台发送请求，后台是基于tornado的，现在有个用户唯一识别的token想要放到headers里面去，也就是{headres:{'token':1}},但是尝试了很多方法不行，想问下应该怎么做，后台需不需要设置一些什么东西，多谢

---

 $.ajax({
                    type: "GET",
                    url: "xxxx",
                    beforeSend: function(request) {
                        request.setRequestHeader("Token", "1");
                    },
                    success: function(result) {
                        alert(result);
                    }
                });

不过干嘛用header呢，cookie，请求参数都行啊

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路由配置$httpProvider.defaults.headers.post['token'] = '123';

---

config中置入以下拦截器

$httpProvider.interceptors.push(['$rootScope', '$q', '$localStorage', function ($rootScope, $q, $localStorage) {
      return {
        request: function (config) {

          // Header - Token
          config.headers = config.headers || {};
          if ($localStorage.token) {
            config.headers.token = $localStorage.token;
          };
          
          return config;
        },

        response: function (response) {

          if (response.status == 200) {
            // console.log('do something...');
          }
          
          return response || $q.when(response);
        },

        responseError: function (response) {
        
          return $q.reject(response);
        }
      }
    }])