ECSHOP网店上万商品量性能优化-加快首页访问速度

如果ECshop的商品数达到几万,十几万的时候,如果首页没有缓存,第一次访问的时候,你会发现其慢无比,原因就是清空了Cache后或者没有Cache的情况下,ECshop会Bulid一些Cache数据,导致访问很慢,但我们有时候后台编辑类目或者其他的,经常会触发清空Cache,所以首页首次访问也成了问题。

在大数据量的情况下,影响首页速度最大的就是推荐的Best、Hot、New Item的数据Bulid,它会把所有的复合条件的商品都会读一遍,然后存到/temp/static_caches/recommend_goods.php这个文件下,有时候会达到10M或者数十M,其实我们并不需要所有的商品都Bulid进去,因为这个缓存只用在首页和Category页的调用,有点浪费。(P.S 因为Category访问本来就比较慢,所以我把热卖商品在Category的展示屏蔽了,所以只剩首页调用)

首页展示的时候,三种类型Best、Hot、New只展示10个商品(没有选择展示多个类目),所以这个上面有很大的优化空间。

打开include目录下的lib_goods.php文件,找到function get_recommend_goods() 函数,原始的大概是:
/**
 * 获得推荐商品
 *
 * @access  public
 * @param   string      $type       推荐类型,可以是 best, new, hot
 * @return  array
 */
function get_recommend_goods($type = '', $cats = '')
{
    if (!in_array($type, array('best', 'new', 'hot')))
    {
        return array();
    }
    //取不同推荐对应的商品
    static $type_goods = array();
    if (empty($type_goods[$type]))
    {
        //初始化数据
        $type_goods['best'] = array();
        $type_goods['new'] = array();
        $type_goods['hot'] = array();
        $data = read_static_cache('recommend_goods');
        if ($data === false)
        {
            $sql = 'SELECT g.goods_id, g.is_best, g.is_new, g.is_hot, g.is_promote, b.brand_name,g.sort_order ' .
               ' FROM ' . $GLOBALS['ecs']->table('goods') . ' AS g ' .
               ' LEFT JOIN ' . $GLOBALS['ecs']->table('brand') . ' AS b ON b.brand_id = g.brand_id ' .
               ' WHERE g.is_on_sale = 1 AND g.is_alone_sale = 1 AND g.is_delete = 0 AND (g.is_best = 1 OR g.is_new =1 OR g.is_hot = 1)'.
               ' ORDER BY g.sort_order, g.last_update DESC';
            $goods_res = $GLOBALS['db']->getAll($sql);
            //定义推荐,最新,热门,促销商品
            $goods_data['best'] = array();
            $goods_data['new'] = array();
            $goods_data['hot'] = array();
            $goods_data['brand'] = array();
            if (!empty($goods_res))
            {
                foreach($goods_res as $data)
                {
                    if ($data['is_best'] == 1)
                    {
                        $goods_data['best'][] = array('goods_id' => $data['goods_id'], 'sort_order' => $data['sort_order']);
                    }
                    if ($data['is_new'] == 1)
                    {
                        $goods_data['new'][] = array('goods_id' => $data['goods_id'], 'sort_order' => $data['sort_order']);
                    }
                    if ($data['is_hot'] == 1)
                    {
                        $goods_data['hot'][] = array('goods_id' => $data['goods_id'], 'sort_order' => $data['sort_order']);
                    }
                    if ($data['brand_name'] != '')
                    {
                        $goods_data['brand'][$data['goods_id']] = $data['brand_name'];
                    }
                }
            }
            write_static_cache('recommend_goods', $goods_data);
        }
        else
        {
            $goods_data = $data;
        }
        $time = gmtime();
        $order_type = $GLOBALS['_CFG']['recommend_order'];
        //按推荐数量及排序取每一项推荐显示的商品 order_type可以根据后台设定进行各种条件显示
        static $type_array = array();
        $type2lib = array('best'=>'recommend_best', 'new'=>'recommend_new', 'hot'=>'recommend_hot');
        if (empty($type_array))
        {
            foreach($type2lib as $key => $data)
            {
                if (!empty($goods_data[$key]))
                {
                    $num = get_library_number($data);
                    $data_count = count($goods_data[$key]);
                    $num = $data_count > $num  ? $num : $data_count;
                    if ($order_type == 0)
                    {
                        //usort($goods_data[$key], 'goods_sort');
                        $rand_key = array_slice($goods_data[$key], 0, $num);
                        foreach($rand_key as $key_data)
                        {
                            $type_array[$key][] = $key_data['goods_id'];
                        }
                    }
                    else
                    {
                        $rand_key = array_rand($goods_data[$key], $num);
                        if ($num == 1)
                        {
                            $type_array[$key][] = $goods_data[$key][$rand_key]['goods_id'];
                        }
                        else
                        {
                            foreach($rand_key as $key_data)
                            {
                                $type_array[$key][] = $goods_data[$key][$key_data]['goods_id'];
                            }
                        }
                    }
                }
                else
                {
                    $type_array[$key] = array();
                }
            }
        }
        //取出所有符合条件的商品数据,并将结果存入对应的推荐类型数组中
        $sql = 'SELECT g.goods_id, g.goods_name, g.goods_name_style, g.market_price, g.shop_price AS org_price, g.promote_price, ' .
              NULLser_price, g.shop_price * '$_SESSION[discount]') AS shop_price, ".
                "promote_start_date, promote_end_date, g.goods_brief, g.goods_thumb, g.goods_img, RAND() AS rnd " .
                'FROM ' . $GLOBALS['ecs']->table('goods') . ' AS g ' .
                "LEFT JOIN " . $GLOBALS['ecs']->table('member_price') . " AS mp ".
                "ON mp.goods_id = g.goods_id AND mp.user_rank = '$_SESSION[user_rank]' ";
        $type_merge = array_merge($type_array['new'], $type_array['best'], $type_array['hot']);
        $type_merge = array_unique($type_merge);
        $sql .= ' WHERE g.goods_id ' . db_create_in($type_merge);
        $sql .= ' ORDER BY g.sort_order, g.last_update DESC';
        $result = $GLOBALS['db']->getAll($sql);
        foreach ($result AS $idx => $row)
        {
            if ($row['promote_price'] > 0)
            {
                $promote_price = bargain_price($row['promote_price'], $row['promote_start_date'], $row['promote_end_date']);
                $goods[$idx]['promote_price'] = $promote_price > 0 ? price_format($promote_price) : '';
            }
            else
            {
                $goods[$idx]['promote_price'] = '';
            }
            $goods[$idx]['id']           = $row['goods_id'];
            $goods[$idx]['name']         = $row['goods_name'];
            $goods[$idx]['brief']        = $row['goods_brief'];
            $goods[$idx]['brand_name']   = isset($goods_data['brand'][$row['goods_id']]) ? $goods_data['brand'][$row['goods_id']] : '';
            $goods[$idx]['goods_style_name']   = add_style($row['goods_name'],$row['goods_name_style']);
            $goods[$idx]['short_name']   = $GLOBALS['_CFG']['goods_name_length'] > 0 ?
                                               sub_str($row['goods_name'], $GLOBALS['_CFG']['goods_name_length']) : $row['goods_name'];
            $goods[$idx]['short_style_name']   = add_style($goods[$idx]['short_name'],$row['goods_name_style']);
            $goods[$idx]['market_price'] = price_format($row['market_price']);
            $goods[$idx]['shop_price']   = price_format($row['shop_price']);
            $goods[$idx]['thumb']        = get_image_path($row['goods_id'], $row['goods_thumb'], true);
            $goods[$idx]['goods_img']    = get_image_path($row['goods_id'], $row['goods_img']);
            $goods[$idx]['url']          = build_uri('goods', array('gid' => $row['goods_id']), $row['goods_name']);
            if (in_array($row['goods_id'], $type_array['best']))
            {
                $type_goods['best'][] = $goods[$idx];
            }
            if (in_array($row['goods_id'], $type_array['new']))
            {
                $type_goods['new'][] = $goods[$idx];
            }
            if (in_array($row['goods_id'], $type_array['hot']))
            {
                $type_goods['hot'][] = $goods[$idx];
            }
        }
    }
    return $type_goods[$type];
}
我们的思路就是不读取所有的商品信息,而是Best、Hot、New够用展示就行了,所以把代码调整了一下,限制了Bulid的商品数,去掉了一些不需要的Join表,当然大家不一定要照着我们做,我们讲的都是思路,看自己的实际情况,要有点程序基本功。
更改后的代码如下:
/**
 * 获得推荐商品
 *
 * @access  public
 * @param   string      $type       推荐类型,可以是 best, new, hot
 * @return  array
 */
function get_recommend_goods($type = '', $cats = '')
{
    if (!in_array($type, array('best', 'new', 'hot')))
    {
        return array();
    }
    //取不同推荐对应的商品
    static $type_goods = array();
    if (empty($type_goods[$type]))
    {
        //初始化数据
        $type_goods['best'] = array();
        $type_goods['new'] = array();
        $type_goods['hot'] = array();
        $data = read_static_cache('recommend_goods');
        if ($data === false)
        {
            $sql = 'SELECT g.goods_id, g.sort_order ' .
               ' FROM ' . $GLOBALS['ecs']->table('goods') . ' AS g ' .
               ' WHERE (g.is_best = 1)'.
               ' ORDER BY g.goods_number DESC LIMIT 50';
            $goods_res = $GLOBALS['db']->getAll($sql);
            $goods_data['best'] = array();
            if (!empty($goods_res))
            {
                foreach($goods_res as $data)
                {
                    $goods_data['best'][] = array('goods_id' => $data['goods_id'], 'sort_order' => $data['sort_order']);
                }
            }
            $sql = 'SELECT g.goods_id, g.sort_order ' .
               ' FROM ' . $GLOBALS['ecs']->table('goods') . ' AS g ' .
               ' WHERE (g.is_new = 1 AND g.is_best = 0 AND g.is_hot = 0)'.
               ' ORDER BY g.goods_id DESC LIMIT 50';
            $goods_res = $GLOBALS['db']->getAll($sql);
            $goods_data['new'] = array();
            if (!empty($goods_res))
            {
                foreach($goods_res as $data)
                {
                    $goods_data['new'][] = array('goods_id' => $data['goods_id'], 'sort_order' => $data['sort_order']);
                }
            }
            $sql = 'SELECT g.goods_id, g.sort_order ' .
               ' FROM ' . $GLOBALS['ecs']->table('goods') . ' AS g ' .
               ' WHERE (g.is_hot = 1 AND g.is_best = 0)'.
               ' ORDER BY g.goods_number DESC LIMIT 50';
            $goods_res = $GLOBALS['db']->getAll($sql);
            $goods_data['hot'] = array();
            if (!empty($goods_res))
            {
                foreach($goods_res as $data)
                {
                    $goods_data['hot'][] = array('goods_id' => $data['goods_id'], 'sort_order' => $data['sort_order']);
                }
            }
            write_static_cache('recommend_goods', $goods_data);
        }
        else
        {
            $goods_data = $data;
        }
        $time = gmtime();
        $order_type = $GLOBALS['_CFG']['recommend_order'];
        //按推荐数量及排序取每一项推荐显示的商品 order_type可以根据后台设定进行各种条件显示
        static $type_array = array();
        $type2lib = array('best'=>'recommend_best', 'new'=>'recommend_new', 'hot'=>'recommend_hot');
        if (empty($type_array))
        {
            foreach($type2lib as $key => $data)
            {
                if (!empty($goods_data[$key]))
                {
                    $num = get_library_number($data);
                    $data_count = count($goods_data[$key]);
                    $num = $data_count > $num  ? $num : $data_count;
                    if ($order_type == 0)
                    {
                        //usort($goods_data[$key], 'goods_sort');
                        $rand_key = array_slice($goods_data[$key], 0, $num);
                        foreach($rand_key as $key_data)
                        {
                            $type_array[$key][] = $key_data['goods_id'];
                        }
                    }
                    else
                    {
                        $rand_key = array_rand($goods_data[$key], $num);
                        if ($num == 1)
                        {
                            $type_array[$key][] = $goods_data[$key][$rand_key]['goods_id'];
                        }
                        else
                        {
                            foreach($rand_key as $key_data)
                            {
                                $type_array[$key][] = $goods_data[$key][$key_data]['goods_id'];
                            }
                        }
                    }
                }
                else
                {
                    $type_array[$key] = array();
                }
            }
        }
        //取出所有符合条件的商品数据,并将结果存入对应的推荐类型数组中
        $sql = 'SELECT g.goods_id, g.goods_name, g.goods_name_style, g.market_price, g.shop_price AS org_price, g.promote_price, g.shop_price, ' .
                "promote_start_date, promote_end_date, g.goods_brief, g.goods_thumb, g.goods_img, RAND() AS rnd " .
                'FROM ' . $GLOBALS['ecs']->table('goods') . ' AS g ' .
                " ";
        $type_merge = array_merge($type_array['new'], $type_array['best'], $type_array['hot']);
        $type_merge = array_unique($type_merge);
        $sql .= ' WHERE g.goods_id ' . db_create_in($type_merge);
        $sql .= ' ORDER BY g.goods_number DESC';
        $result = $GLOBALS['db']->getAll($sql);
        foreach ($result AS $idx => $row)
        {
            if ($row['promote_price'] > 0)
            {
                $promote_price = bargain_price($row['promote_price'], $row['promote_start_date'], $row['promote_end_date']);
                $goods[$idx]['promote_price'] = $promote_price > 0 ? price_format($promote_price) : '';
            }
            else
            {
                $goods[$idx]['promote_price'] = '';
            }
            $goods[$idx]['id']           = $row['goods_id'];
            $goods[$idx]['name']         = $row['goods_name'];
            $goods[$idx]['brief']        = $row['goods_brief'];
            $goods[$idx]['brand_name']   = isset($goods_data['brand'][$row['goods_id']]) ? $goods_data['brand'][$row['goods_id']] : '';
            $goods[$idx]['goods_style_name']   = add_style($row['goods_name'],$row['goods_name_style']);
            $goods[$idx]['short_name']   = $GLOBALS['_CFG']['goods_name_length'] > 0 ?
                                               sub_str($row['goods_name'], $GLOBALS['_CFG']['goods_name_length']) : $row['goods_name'];
            $goods[$idx]['short_style_name']   = add_style($goods[$idx]['short_name'],$row['goods_name_style']);
            $goods[$idx]['market_price'] = price_format($row['market_price']);
            $goods[$idx]['shop_price']   = price_format($row['shop_price']);
            $goods[$idx]['thumb']        = get_image_path($row['goods_id'], $row['goods_thumb'], true);
            $goods[$idx]['goods_img']    = get_image_path($row['goods_id'], $row['goods_img']);
            $goods[$idx]['url']          = build_uri('goods', array('gid' => $row['goods_id']), $row['goods_name']);
            if (in_array($row['goods_id'], $type_array['best']))
            {
                $type_goods['best'][] = $goods[$idx];
            }
            if (in_array($row['goods_id'], $type_array['new']))
            {
                $type_goods['new'][] = $goods[$idx];
            }
            if (in_array($row['goods_id'], $type_array['hot']))
            {
                $type_goods['hot'][] = $goods[$idx];
            }
        }
    }
    return $type_goods[$type];
}

本文原创地址:https://www.ecshop.cx/article-270.html
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