如何从apache solr的pdf内容中获取日期字符串

大家好我是新来的阿帕奇solr。 我有一个包含日期信息的pdf，如 - bla bla bla 2012-11-23 11:11:12 bla bla ...-我想从内容中获取所有日期。

我阅读了一些文档（http://wiki.apache.org/solr/ExtractingRequestHandler），我添加了date.formats到/ update / extract

 <requestHandler name="/update/extract" 
              startup="lazy"
              class="solr.extraction.ExtractingRequestHandler" >
<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>
<lst name="date.formats">
  <str>yyyy-MM-dd</str>
  <str>yyyy-MM-dd'T'HH:mm:ss'Z'</str>
  <str>yyyy-MM-dd'T'HH:mm:ss</str>
  <str>yyyy-MM-dd</str>
  <str>yyyy-MM-dd hh:mm:ss</str>
  <str>yyyy-MM-dd HH:mm:ss</str>
</lst>

我在下面添加pdf

curl“http：// localhost：8983 / solr / update / extract？literal.id = sql.txt＆uprefix = attr_＆fmap.content = attr_content＆commit = true”＆stream.file =“/home/example/example.pdf”

还有关于日期的注意事项？ 和内容？

Thnks

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