Question

我使用SOLR和Tomcat servlet容器开发了搜索页面。使用PHP代码我将搜索查询发布到solrQuery（）函数中，并在此函数中定义了查询参数，如下所示。

$ query =“？q =”。trim（urlencode（$ q））＆安培;版本= 2.2＆安培;开始= 0＆安培;行数= 10安培;缩进= ON＆安培; HL =真安培; hl.fl =标题“;

我已经通过突出显示的“hl = true＆amp; hl.fl = title”参数。我不知道如何在我的搜索页面中解析/显示突出显示的结果？

任何人都可以帮助我吗？

Answer 1

在Solr中突出显示的方式如下：

在结果的XML响应开始时，您会看到一个“结果”节点，其中包含子“doc”节点，其中包含您的搜索结果。像这样：

 <doc>
  <str name="body">Merge transfer will merge one item with another. The new item can be either from same location or from different location. Merge transfer directions:  Open your Paper Tiger Online and select the database. Select item(s) you want to merge except for the one you want to merge the items into, click on Transfer and select Merge. A pop up will be opened asking New Location, once you select the location, the items in the location will be loaded in to the “File to Merge”.  Select a file in the “File to Merge” list. Choose whether you want to be reminded to move this file or not  Click Merge File  Add any additional keywords, notes, action date, change category (if necessary)  Click Merge Item button  If you chose to be reminded, you'll need to click the Confirm box to confirm the merge, then the merge will happen. (You can also cancel the merge from the Confirm page) </str>
  <str name="current-tags"/>
  <str name="id">141156</str>
  <str name="title">What is a merge transfer? How do I merge files?</str>
 </doc>

在使用resutls的XML响应结束时，您将看到名为“highlighting”的“lst”节点。您会注意到，在每个节点中，您将看到一个子节点“lst”节点，其中包含您为文档选择的唯一标识符的名称。像这样：

<lst name="141154">
  <arr name="body">
    <str>Transfers are used to move or &lt;em&gt;merge&lt;/em&gt; the items from one location and another location and creating duplicates items in the locations. You might want to move and item from Action to Reference or Archive to an off-site location. You would want to move the item in Paper Tiger to ensure you can find it</str>
  </arr>
</lst>

对我来说，最简单的方法就是先遍历“结果”节点，然后将变量设置为搜索结果的内容。然后，在循环内显示每个项目，我循环“突出显示”节点并搜索项目的ID以查看是否找到匹配项。如果找到匹配项，我将用突出显示的内容覆盖原始变量的内容。

这样，您将显示结果，而不是找到突出显示的匹配。

    cURL_address($curl_url);

$xml = new SimpleXMLElement($data);

    foreach ($xml->children() as $node) {

        $arr = $node->attributes();   // returns an array
        $no_results = FALSE;

        //When no results are found

        if ($arr["name"] == "response" && $arr["numFound"] == 0) {

            echo "No results found for '". $query ."'";
            $no_results = TRUE;

        }

        if ($arr["name"] == "response") {

            if ($no_results != TRUE) {
                echo "<h4 id=\"search_results\">Search results for '".$query."'</h4>";
            } 

            foreach ($node->doc as $response) {

                //Initially set all the variables to the non-highlighted content

                $entry_title = $response->str[3];
                $entry_body = substr($response->str[0], 0, 300)."&#8230;";
                $entry_id = $response->str[2];
                $entry_tags = $response->str[1];

                //logic to see if we need to add ellipsis to start/end of body
                $orig_body_beggining = substr($response->str[0], 0, 10);
                $orig_body_end = substr($response->str[0], -10);

                //Now loop through every highlighted field to see if we have a node that matches the original item's ID

                foreach ($xml->lst[1]->lst as $hl_data) {

                    $arr2 = $hl_data->attributes();   // returns an array

                    $hl_arr = $arr2["name"];

                    if ((string)$entry_id == (string)$hl_arr) {

                        foreach ($hl_data->arr as $hl_content) {

                            $arr3 = $hl_content->attributes();

                            //Use a switch to overwrite existing variables if a new one exists that is highlighted

                            switch($arr3['name']) { // Get attributes as element indices
                                case 'body':
                                    $f_ellip = NULL;
                                    $l_ellip = NULL;
                                    if ($orig_body_beggining != substr((string)$hl_content->str, 0, 10)) {
                                        $f_ellip = "&#8230; ";
                                    }
                                    if ($orig_body_end != substr((string)$hl_content->str, 0, -10)) {
                                        $l_ellip = " &#8230;";
                                    }
                                    $entry_body = $f_ellip.(string)$hl_content->str.$l_ellip;
                                    break;
                                case 'title':
                                    $entry_title = (string)$hl_content->str;
                                    break;
                                case 'current-tags':
                                    $entry_tags = (string)$hl_content->str;
                                    break;
                                }

                        }

                    }
                }

让我知道你的想法！

如何使用Apache SOLR和PHP代码突出显示搜索结果

1 个答案: