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dedecms 织梦 数据量达到几十万 生成速度很慢

发布时间:2020-10-09 | 发布者: 东东网| 浏览次数:

本人5.7 生成列表页 改动 include/arc.listview.class.php
1.先设置 关闭副栏目(在系统----系统基本参数—性能选项里)
2.一般网站不需要 栏目交叉 交叉 所以 找到94行注释掉:

//获得交叉栏目ID
            /*if($this->TypeLink->TypeInfos['cross']>0 && $this->TypeLink->TypeInfos['ispart']==0)
            {
                $selquery = '';
                if($this->TypeLink->TypeInfos['cross']==1)
                {
                    $selquery = "SELECT id,topid FROM `dede_arctype` WHERE typename LIKE '{$this->Fields['typename']}' AND id<>'{$this->TypeID}' AND topid<>'{$this->TypeID}'  ";
                }
                else
                {
                    $this->Fields['crossid'] = preg_replace('/[^0-9,]/', '', trim($this->Fields['crossid']));
                    if($this->Fields['crossid']!='')
                    {
                        $selquery = "SELECT id,topid FROM `dede_arctype` WHERE id in({$this->Fields['crossid']}) AND id<>{$this->TypeID} AND topid<>{$this->TypeID}  ";
                    }
                }
                if($selquery!='')
                {
                    $this->dsql->SetQuery($selquery);
                    $this->dsql->Execute();
                    while($arr = $this->dsql->GetArray())
                    {
                        $this->CrossID .= ($this->CrossID=='' ? $arr['id'] : ','.$arr['id']);
                    }
                }
            }*/ 
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3.找到751注释掉:

//获得附加表的相关信息 
 /*$addtable  = $this->ChannelUnit->ChannelInfos['addtable'];
        if($addtable!="")
        {
            $addJoin = " LEFT JOIN `$addtable` ON arc.id = ".$addtable.'.aid ';
            $addField = '';
            $fields = explode(',',$this->ChannelUnit->ChannelInfos['listfields']);
            foreach($fields as $k=>$v)
            {
                $nfields[$v] = $k;
            }
            if(is_array($this->ChannelUnit->ChannelFields) && !empty($this->ChannelUnit->ChannelFields))
            {
                foreach($this->ChannelUnit->ChannelFields as $k=>$arr)
                {
                    if(isset($nfields[$k]))
                    {
                        if(!empty($arr['rename'])) {
                            $addField .= ','.$addtable.'.'.$k.' as '.$arr['rename'];
                        }
                        else {
                            $addField .= ','.$addtable.'.'.$k;
                        }
                    }
                }
            }
        }
        else
        {
            $addField = '';
            $addJoin = '';
        }*/
 
再加上$addtable="";
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4.找到815行

/*$query = "SELECT arc.*,tp.typedir,tp.typename,tp.corank,tp.isdefault,tp.defaultname,
                       tp.namerule,tp.namerule2,tp.ispart,tp.moresite,tp.siteurl,tp.sitepath
                       $addField
                       FROM `dede_archives` arc LEFT JOIN `dede_arctype` tp ON arc.typeid=tp.id
                       $addJoin
                       WHERE arc.id in($idstr) $ordersql ";*/
    修改:去掉 $addField


        $query = "SELECT arc.*,tp.typedir,tp.typename,tp.corank,tp.isdefault,tp.defaultname,
                       tp.namerule,tp.namerule2,tp.ispart,tp.moresite,tp.siteurl,tp.sitepath
                       FROM `dede_archives` arc LEFT JOIN `dede_arctype` tp ON arc.typeid=tp.id
                       $addJoin
                       WHERE arc.id in($idstr) $ordersql "; 

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