如何让建议组件在 SolrNet 中工作? [英] How to get the suggester component working in SolrNet?
问题描述
我已经配置了我的 solrconfig.xml 和 schema.xml 来查询建议.
I have configured my solrconfig.xml and schema.xml to query for the suggestions.
我能够从 url 获得建议
I am able to get the suggestions from the url
http://localhost:8080/solr/collection1/suggest?q=ha&wt=xml
我的 SolrConfig.xml 看起来像
My SolrConfig.xml looks like
目前，我的 solr 查询看起来像
Curently, My solr query looks like
<fields>
<!-- declare fields of entity class -->
<!-- type will specify the table name -->
<field name="type" type="string" indexed="true" stored="true" />
<field name="id" type="string" indexed="true" stored="true" required="true" multiValued="false" />
<field name="name" type="text_general" indexed="true" stored="true" omitNorms="true"/>
<field name="text" type="text_general" indexed="true" stored="false" multiValued="true"/>
<field name="_version_" type="long" indexed="true" stored="true"/>
<!-- unique field -->
<field name="uid" type="uuid" indexed="true" stored="true" />
</fields>
<uniqueKey>uid</uniqueKey>
<copyField source="name" dest="text"/>
<types>
<fieldType name="uuid" class="solr.UUIDField" indexed="true" />
<fieldType name="string" class="solr.StrField" sortMissingLast="true" />
<fieldType name="boolean" class="solr.BoolField" sortMissingLast="true"/>
<fieldType name="int" class="solr.TrieIntField" precisionStep="0" positionIncrementGap="0"/>
.....
</types>
我的 schema.xml 看起来像这样
And my schema.xml looks like this
<searchComponent name="suggest" class="solr.SpellCheckComponent">
<!-- a spellchecker built from a field of the main index -->
<lst name="spellchecker">
<str name="name">suggest</str>
<str name="field">name</str>
<str name="classname">org.apache.solr.spelling.suggest.Suggester</str>
<str name="lookupImpl">org.apache.solr.spelling.suggest.tst.TSTLookup</str>
<str name="buildOnCommit">true</str>
<str name="distanceMeasure">internal</str>
<float name="accuracy">0.5</float>
<int name="maxEdits">2</int>
int name="minPrefix">1</int>
<int name="maxInspections">5</int>
<int name="minQueryLength">4</int>
<float name="maxQueryFrequency">0.01</float>
<float name="thresholdTokenFrequency">.01</float>
</lst>
<!-- a spellchecker that can break or combine words. See "/spell" handler below for usage -->
<lst name="spellchecker">
<str name="name">wordbreak</str>
<str name="classname">solr.WordBreakSolrSpellChecker</str>
<str name="field">name</str>
<str name="combineWords">true</str>
<str name="breakWords">true</str>
<int name="maxChanges">10</int>
</lst>
</searchComponent>
<requestHandler name="/suggest" class="solr.SearchHandler" startup="lazy">
<lst name="defaults">
<str name="df">text</str>
<!-- Solr will use suggestions from both the 'default' spellchecker
and from the 'wordbreak' spellchecker and combine them.
collations (re-written queries) can include a combination of
corrections from both spellcheckers -->
<str name="spellcheck">true</str>
<str name="spellcheck.dictionary">suggest</str>
<!--<str name="spellcheck.dictionary">wordbreak</str>-->
<str name="spellcheck">on</str>
<str name="spellcheck.extendedResults">true</str>
<str name="spellcheck.count">10</str>
<str name="spellcheck.alternativeTermCount">5</str>
<str name="spellcheck.maxResultsForSuggest">5</str>
<str name="spellcheck.collate">true</str>
<str name="spellcheck.collateExtendedResults">true</str>
<str name="spellcheck.maxCollationTries">10</str>
<str name="spellcheck.maxCollations">5</str>
</lst>
<arr name="last-components">
<str>spellcheck</str>
</arr>
</requestHandler>
我调用 SolrNet API 的代码如下
My code to call the SolrNet API looks as below
new SolrBaseRepository.Instance<T>().Start();
var solr = ServiceLocator.Current.GetInstance<ISolrOperations<T>>();
var options = new QueryOptions
{
FilterQueries = new ISolrQuery[] { new SolrQueryByField("type", type) }
};
var results = solr.Query(keyword, options);
return results;
但是，我没有得到任何数据.结果计数为零.而且结果中的拼写检查也为零.
However, I am not getting any data. results count is zero. And also the spellcheck in the results is also zero.
我也没有在结果中看到建议列表.
I also dont see the suggestion list inside the results.
请帮忙
推荐答案
我有完全相同的要求，但找不到任何方法来轻松处理 Suggester 结果与 SolrNet.不幸的是，SolrNet 似乎是围绕默认的 /select 请求处理程序构建的，目前不支持任何其他处理程序，包括用于对象类型映射的 /suggest (T代码>).它期望所有映射都与索引的 Solr 文档结果而不是建议器结果一起发生.
I had the exact same requirement but could not find any way to easily handle Suggester results with SolrNet. Unfortunately, SolrNet seems to be built around the default /select request handler and does not currently support any other handler including /suggest for object type mappings (T). It expects all mappings to occur with indexed Solr document results and not suggester results.
因此，@Paige Cook 的回答 对我不起作用.T 类型与映射与建议结果响应不兼容.从初始化请求(Startup.Init)到查询(ISolrQueryResults)的所有标准管道代码都需要一个映射 Solr 文档类型，而不是建议者提供的简单字符串数组.
Hence, @Paige Cook's answer did not work for me. T type with mappings is not compatible with a suggester results response. All the standard plumbing code from initializing the request (Startup.Init<T>()) to querying (ISolrQueryResults<T> results = solr.Query()) needs a mapped Solr document type and not a simple array of strings which the suggester provides.
因此，(类似于 @dfay)我发起了一个网络请求并从XML 网络响应.SolrConnection 类用于此:
Therefore, (similar to @dfay) I went with making a web request and parsing out the suggested results from the XML web response. The SolrConnection class was used for this:
string searchTerm = "ha";
string solrUrl = "http://localhost:8080/solr/collection1";
string relativeUrl = "/suggest";
var parameters = new Dictionary<string, string>
{
{"q", searchTerm},
{"wt", "xml"},
};
var solrConnection = new SolrConnection(solrUrl);
string response = solrConnection.Get(relativeUrl, parameters);
// then use your favorite XML parser to extract
// suggestions from the reponse string
或者，请求可以使用 wt=json 参数返回 JSON 响应，而不是 XML:
Alternatively, instead of XML, the request can return a JSON response using the wt=json parameter:
var parameters = new Dictionary<string, string>
{
{"q", searchTerm},
{"wt", "json"}, // change this!
};
// then use your favorite JSON parser
这篇关于如何让建议组件在 SolrNet 中工作?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
