关键词模糊匹配 python 关键词模糊搜索

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数据科学探索者 2024-09-02 14:24:58

文章标签 关键词模糊匹配 python 关键词联想关联 php sql 搜索 php 文章分类 Python 后端开发

各位ECSHOP网店系统用户大家好，欢迎来到ECSHOP商品关键词模糊分词搜索商品列表关键字加红功能。

最近给客户做一个ECSHOP商城，发现ECSHOP的模糊搜索要求太高，需要加入and、空格、加号等，客户搜索的时候不可能这样操作。

考虑到工期的问题，采用了织梦的分词算法，搜索效果虽然不是特别理想，但是这么短的时间也只能这样了。

在此分享给没钱又着急的朋友，需要用到的文件在文章末尾提供下载，大家下载后也可以直接覆盖使用。

一、ECSHOP联想下拉框

1、修改page_header.lbi模版文件，将搜索文本框修改为：ecshop" class="search-input"  οnfοcus="if(this.value=='ecshop'){this.value='';this.style.color='#000';}"  οnblur="closediv();if(this.value==''){this.value='ecshop';this.style.color='#999';}" style="color:#999;"  οnkeyup="keyupdeal(event,this.value);" οnkeydοwn="keydowndeal(event);" οnclick="keyupdeal(event,this.value);"   autocomplete="off" />

嵌入js文件

嵌入css文件

2、根目录添加php文件search_suggest.php文件

二、分词搜索

1、修改search.php文件第196行/* 检查关键字中是否有空格，如果存在就是并 */
$arr        = explode(' ', $_REQUEST['keywords']);             $operator   = " AND ";
改为：/*调用织梦分词功能-start*/
require("lib_splitword_full.php");             $sp = new SplitWord();             $fenci=$sp->SplitRMM($_REQUEST['keywords']);             $sp->Clear();             /* 织梦分词后是使用空格进行划分，所以仍可使用ecshop的按照空格拆分为数组功能：检查关键字中是否有空格，如果存在就是并 */
$arr        = explode(' ', $fenci);             $arr        = array_reverse($arr);//将数组倒序排列，并插入完整关键字到数组末尾
$arr[count($arr)]=$_REQUEST['keywords'];             $arr        = array_reverse($arr);//再次将数组倒序，使完整关键字可以第一个被检索
array_pop($arr);//删除织梦分词产生的数组最后一个元素为空格
$operator   = " and ";//sql检索语句使用union联合检索
$piaohong = $arr;//$arr数组在飘红的时候已经被产品列表占用了，所以另外赋值给一个数组备用。
/*调用织梦分词功能-end*/
2、修改search.php文件第382行到403行/* 获得符合条件的商品总数 */
$sql   = "SELECT COUNT(*) FROM " .$ecs->table('goods'). " AS g ".
"WHERE g.is_delete = 0 AND g.is_on_sale = 1 AND g.is_alone_sale = 1 $attr_in ".
"AND (( 1 " . $categories . $keywords . $brand . $min_price . $max_price . $intro . $outstock ." ) ".$tag_where." )";     $count = $db->getOne($sql);      $max_page = ($count> 0) ? ceil($count / $size) : 1;     if ($page > $max_page)     {         $page = $max_page;     }      /* 查询商品 */
$sql = "SELECT g.goods_id, g.goods_name, g.market_price, g.is_new, g.is_best, g.is_hot, g.shop_price AS org_price, ".
"IFNULL(mp.user_price, g.shop_price * '$_SESSION[discount]') AS shop_price, ".
"g.promote_price, g.promote_start_date, g.promote_end_date, g.goods_thumb, g.goods_img, g.goods_brief, g.goods_type ".
"FROM " .$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]' ".
"WHERE g.is_delete = 0 AND g.is_on_sale = 1 AND g.is_alone_sale = 1 $attr_in ".
"AND (( 1 " . $categories . $keywords . $brand . $min_price . $max_price . $intro . $outstock . " ) ".$tag_where." ) " .
"ORDER BY $sort $order";
打开 /includes/lib_goods.php 文件(建议使用editplus)找到下面代码(大概在287行左右)/*sun04zh3-20130905-调用织梦分词功能-更改ecshop的sql语句采用union方式-start*//*因为后面要用union生成数据集表，所以先根据拆分出的关键词，生成union所需的所有sql语句，*/$select = "(";     foreach($arr AS $se => $t)     {          $select .= "SELECT click_count,goods_sn,is_alone_sale,is_on_sale,is_delete,goods_id, goods_name, market_price, is_new, is_best, is_hot, shop_price AS org_price, shop_price ,promote_price, promote_start_date, promote_end_date, goods_thumb, goods_img, goods_brief, goods_type FROM(select  click_count,goods_sn,is_alone_sale,is_on_sale,is_delete,goods_id, goods_name, market_price, is_new, is_best, is_hot, shop_price AS org_price, shop_price ,promote_price, promote_start_date, promote_end_date, goods_thumb, goods_img, goods_brief, goods_type from".$ecs->table('goods')." where goods_name like '%$t%' order by click_count desc) AS P$se";//第一个关键词是完整关键词
if($se==0)//插入一个当所有拆分关键词在商品名称中为and时的sql语句        {             $select .= " UNION SELECT click_count,goods_sn,is_alone_sale,is_on_sale,is_delete,goods_id, goods_name, market_price, is_new, is_best, is_hot, shop_price AS org_price, shop_price ,promote_price, promote_start_date, promote_end_date, goods_thumb, goods_img, goods_brief, goods_type FROM(select  click_count,goods_sn,is_alone_sale,is_on_sale,is_delete,goods_id, goods_name, market_price, is_new, is_best, is_hot, shop_price AS org_price, shop_price ,promote_price, promote_start_date, promote_end_date, goods_thumb, goods_img, goods_brief, goods_type from".$ecs->table('goods')." where 1  $keywords order by click_count desc) AS Pa";         }         if($setable("goods")." AS P " .
"WHERE is_delete = 0 AND is_on_sale = 1 AND is_alone_sale = 1  " ;     }     else     {          /* 获得符合条件的商品总数 */
$sql   = "SELECT COUNT(*) FROM $select AS P " .
"WHERE is_delete = 0 AND is_on_sale = 1 AND is_alone_sale = 1  " ;     }     $count = $db->getOne($sql);      $max_page = ($count> 0) ? ceil($count / $size) : 1;     if ($page > $max_page)     {         $page = $max_page;     }     if($select=="()")//当关键词为空时，没有拆分关键词，所以用于union的$select为空，仍需要调用goods表     {          /* 查询商品 */
$sql = "SELECT click_count,goods_sn,is_alone_sale,is_on_sale,is_delete,goods_id, goods_name, market_price, is_new, is_best, is_hot, shop_price AS org_price, shop_price ,promote_price, promote_start_date, promote_end_date, goods_thumb, goods_img, goods_brief, goods_type ".
"FROM ".$ecs->table("goods")." AS P " .
"WHERE is_delete = 0 AND is_on_sale = 1 AND is_alone_sale = 1  " ;     }     else     {          /* 查询商品 */
$sql = "SELECT click_count,goods_sn,is_alone_sale,is_on_sale,is_delete,goods_id, goods_name, market_price, is_new, is_best, is_hot, shop_price AS org_price, shop_price ,promote_price, promote_start_date, promote_end_date, goods_thumb, goods_img, goods_brief, goods_type ".
"FROM $select AS P " .
"WHERE is_delete = 0 AND is_on_sale = 1 AND is_alone_sale = 1  " ;     }
三、搜索出的产品列表产品关键词飘红功能：
1、修改search.php文件第473行到480行if($display == 'grid')         {             $arr[$row['goods_id']]['goods_name']    = $GLOBALS['_CFG']['goods_name_length'] > 0 ? sub_str($row['goods_name'], $GLOBALS['_CFG']['goods_name_length']) : $row['goods_name'];         }         else         {             $arr[$row['goods_id']]['goods_name'] = $row['goods_name'];         }
修改为：/*根据分词对产品名称进行替换-start*/
$tihuan=$row["goods_name"];         foreach($piaohong AS $ph_count => $ph)         {              $tihuan = str_replace($ph,"$ph",$tihuan);         }                $arr[$row['goods_id']]['goods_name'] = $row['goods_name'];//因为前台用到没有替换的商品名称，所以保留goods_name值
$arr[$row['goods_id']]['tihuan'] = $tihuan;         /*根据分词对产品名称进行替换-end*/
2、修改search.dwt模板文件
将显示商品名称的地方替换为：
{$goods.tihuan}

四、文中所有涉及的修改和要用到的文件

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