Question

我是Apache Solr的新手，我想用它来索引pdf文件。到目前为止，我设法启动并运行，现在我可以搜索添加的pdf文件。

但是，我需要能够从结果中检索搜索到的文本。

我在默认的solrconfig.xml中找到了一个xml片段，其中包含：

<requestHandler name="/update/extract" class="org.apache.solr.handler.extraction.ExtractingRequestHandler" startup="lazy">
<lst name="defaults">
  <!-- All the main content goes into "text"... if you need to return
       the extracted text or do highlighting, use a stored field. -->
  <str name="fmap.content">text</str>
  <str name="lowernames">true</str>
  <str name="uprefix">ignored_</str>

  <!-- capture link hrefs but ignore div attributes -->
  <str name="captureAttr">true</str>
  <str name="fmap.a">links</str>
  <str name="fmap.div">ignored_</str>
</lst>

从我从这里得到的（http://www.lucidimagination.com/Community/Hear-from-the-Experts/Articles/Content-Extraction-Tika），我想我必须为架构添加一个新字段存储=“true”且索引=“真”的.xml（例如“content”）。但是，我真的不确定如何完成这项工作？

任何帮助表示赞赏，thx

Answer 1

添加如下所示的schema.xml：

<?xml version="1.0" encoding="UTF-8" ?>

<schema name="whatever" version="1.2">
    <types>
        <fieldType name="string" class="solr.StrField" sortMissingLast="true" omitNorms="true"/>
        <fieldType name="int" class="solr.TrieIntField" precisionStep="0" omitNorms="true" positionIncrementGap="0"/>
        <fieldType name="float" class="solr.TrieFloatField" precisionStep="0" omitNorms="true" positionIncrementGap="0"/>
        <fieldType name="long" class="solr.TrieLongField" precisionStep="0" omitNorms="true" positionIncrementGap="0"/>
        <fieldType name="double" class="solr.TrieDoubleField" precisionStep="0" omitNorms="true" positionIncrementGap="0"/>
        <fieldType name="date" class="solr.TrieDateField" omitNorms="true" precisionStep="0" positionIncrementGap="0"/>
        <fieldType name="text" class="solr.TextField" positionIncrementGap="100">
            <analyzer type="index">
                <charFilter class="solr.HTMLStripCharFilterFactory"/>
                <charFilter class="solr.MappingCharFilterFactory" mapping="../../mapping-ISOLatin1Accent.txt"/>
                <tokenizer class="solr.StandardTokenizerFactory"/>
                <filter class="solr.StandardFilterFactory"/>
                <filter class="solr.LowerCaseFilterFactory"/>
            </analyzer>
            <analyzer type="query">
                <charFilter class="solr.HTMLStripCharFilterFactory"/>
                <charFilter class="solr.MappingCharFilterFactory" mapping="../../mapping-ISOLatin1Accent.txt"/>
                <tokenizer class="solr.StandardTokenizerFactory"/>
                <filter class="solr.StandardFilterFactory"/>
                <filter class="solr.LowerCaseFilterFactory"/>
            </analyzer>
        </fieldType>
    </types>
    <fields>
        <field name="internal_id" type="string" indexed="true" stored="true"/>
        <field name="cat" type="int" indexed="true" stored="true"/>
        <field name="desc" type="text" indexed="true" stored="true"/>
    </fields>
    <uniqueKey>internal_id</uniqueKey>
    <defaultSearchField>desc</defaultSearchField>
    <solrQueryParser defaultOperator="OR"/>
    <similarity class="org.apache.lucene.search.DefaultSimilarity"/>
</schema>

如果“存储”“字段”，默认情况下它将显示在结果中。

使用Apache Solr检索提取的文本

1 个答案: