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我是 Solr 的新手,想实现基于两个字段标题和描述的自动完成功能。此外,结果集还应进一步受到 id 和类别等其他字段的限制。样本数据:

Title: The brown fox lives in the woods
Description: The fox is found in the woods where brown leaves cover the ground. The animal's fur is brown in color and has a long tail.

所需的自动完成结果:

brown fox
brown leaves
brown color

以下是 schema.xml 中的相关条目:

<fieldType name="autocomplete" class="solr.TextField" positionIncrementGap="100">
 <analyzer type="index">
   <tokenizer class="solr.WhitespaceTokenizerFactory"/>
   <filter class="solr.LowerCaseFilterFactory"/>
   <filter class="solr.EdgeNGramFilterFactory" minGramSize="2" maxGramSize="25" />
 </analyzer>
 <analyzer type="query">
   <tokenizer class="solr.WhitespaceTokenizerFactory"/>
   <filter class="solr.LowerCaseFilterFactory"/>
 </analyzer>
</fieldType>


<field name="id" type="int" indexed="true" stored="true"/>
<field name="category" type="string" indexed="true" stored="true"/>
<field name="title" type="text_general" indexed="true" stored="true"/>
<field name="description" type="text_general" indexed="true" stored="true"/>

<field name="ac-terms" type="autocomplete" indexed="true" stored="false" multiValued="true" omitNorms="true" omitTermFreqAndPositions="false" />
<copyField source="title" dest="ac-terms"/> 
<copyField source="description" dest="ac-terms"/>

查询请求:

http://localhost:9090/solr/select?q=(ac-terms:brown)
4

2 回答 2

4

使用 ShingleFilterFactory 解决了以下配置:

<fieldType name="autocomplete" class="solr.TextField" positionIncrementGap="100">
  <analyzer>
    <tokenizer class="solr.StandardTokenizerFactory"/>
    <filter class="solr.LowerCaseFilterFactory"/>
    <filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords.txt"/>
    <filter class="solr.ShingleFilterFactory" maxShingleSize="2" outputUnigrams="false"/>
    <filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
  </analyzer>
</fieldType>

<field name="ac-terms" type="autocomplete" indexed="true" stored="false" multiValued="true" omitNorms="true" omitTermFreqAndPositions="false" />
<copyField source="title" dest="ac-terms"/>
<copyField source="description" dest="ac-terms"/>

查询请求:

http://localhost:9090/solr/select?q=&facet=true&facet.field=ac-terms&facet.prefix=brown 

结果:

brown color
brown fox
brown leaves

希望这可以帮助某人

于 2012-11-01T23:56:12.163 回答
0

如何创建一个字段spellcheck_text并使用复制字段功能以便titledescription自动注定spellcheck_text

...指示 Solr 您希望它复制它在添加到索引的文档的“源”字段中看到的任何数据,在该文档的“目标”字段中。...原始文本从“源”字段发送到“目标”字段,然后调用任何为源字段或目标字段配置的分析器。

http://wiki.apache.org/solr/SchemaXml#Copy_Fields

于 2012-11-01T10:50:44.943 回答