Question

我遇到的问题是我通过页面控制器从后端调用数据库查询，如果函数没有在后端控制器中立即返回，则页面控制器中会出现错误。我不知道哪一方是罪魁祸首：angular或nodejs？

仅供参考，后端路由在我手动输入时有效，如果查询非常小并且几乎立即返回，则页面控制器中的功能成功。

的PageController

*(void **)

资源服务

    $scope.getItem = function(item) {
      Item.item_query({ itemId: itemId}, function(result) {
        console.log("result" + result);
      }, function(err) {
        console.log("err" + err);
      });
    };

}）;

后端控制器

 window.app.factory("Item", function ($resource) {
   return $resource('api/:action/:itemId',{},
     {
        get_item_files: {
            method: 'GET',
            isArray: true,
            params: {
                action: 'items'
            }
        },

        item_query: {
            method: 'GET',
            isArray: true,
            params: {
                action: 'items',
                itemId: '@itemId'
            },
            cache: false
        }
    });

}

后端路线

exports.getItem = function(req, res) {
  var itemId = req.params.itemId;
  var query = "SELECT c.name, * FROM  (\
               SELECT p.champion_id\
                    , count(p.item0 = ? OR NULL)::int2 AS it0\
                    , count(p.item1 = ? OR NULL)::int2 AS it1\
                    , count(p.item2 = ? OR NULL)::int2 AS it2\
                    , count(p.item3 = ? OR NULL)::int2 AS it3\
                    , count(p.item4 = ? OR NULL)::int2 AS it4\
                    , count(p.item5 = ? OR NULL)::int2 AS it5\
               FROM   matchversion   mv\
               CROSS  JOIN matchtype mt\
               JOIN   match          m  USING (matchtype_id,          matchversion_id)\
               JOIN   participant    p  USING (match_id)\
               WHERE  mv.matchversion = \'5.14\'\
               AND    mt.matchtype = \'RANKED_SOLO_5x5\'\
               AND    p.winner = True\
               GROUP  BY p.champion_id\
               HAVING count(p.item0 = ? OR NULL)::int2 > 0\
               OR count(p.item1 = ? OR NULL)::int2 > 0\
               OR count(p.item2 = ? OR NULL)::int2 > 0\
               OR count(p.item3 = ? OR NULL)::int2 > 0\
               OR count(p.item4 = ? OR NULL)::int2 > 0\
               OR count(p.item5 = ? OR NULL)::int2 > 0\
               ) p\
            JOIN  champion c USING (champion_id)";
  var bindings = [itemId, itemId, itemId, itemId, itemId, itemId, itemId,
                itemId,itemId,itemId,itemId,itemId]
  return pg.raw(query, bindings).then(function(resp) {
    return resp.rows;
  }).then(function(rows) {
      res.jsonp(rows);
  }).catch(function(err){
      console.log(err);
  });

Answer 1

解决了它。我完全忘记发布的是实际的HTML。单击链接后，我有一个href和ng-click。如果查询持续时间过长，则href接管并取消它。

角度资源超时

1 个答案: