solr的分组，

solr的分组，

http://localhost:8983/solr/select?q=ipod&rows=0&facet=true&facet.limit=-1&facet.field=cat&facet.field=inStock

<response>
<responseHeader><status>0</status><QTime>2</QTime></responseHeader>
<result numFound="4" start="0"/>
<lst name="facet_counts">
 <lst name="facet_queries"/>
 <lst name="facet_fields">
  <lst name="cat">
        <int name="search">0</int>
        <int name="memory">0</int>
        <int name="graphics">0</int>
        <int name="card">0</int>
        <int name="music">1</int>
        <int name="software">0</int>
        <int name="electronics">3</int>
        <int name="copier">0</int>
        <int name="multifunction">0</int>
        <int name="camera">0</int>
        <int name="connector">2</int>
        <int name="hard">0</int>
        <int name="scanner">0</int>
        <int name="monitor">0</int>
        <int name="drive">0</int>
        <int name="printer">0</int>
  </lst>
  <lst name="inStock">
        <int name="false">3</int>
        <int name="true">1</int>
  </lst>
 </lst>
</lst>
</response>

分组查询：

http://localhost:8983/solr/select?q=video&rows=0&facet=true&facet.field=inStock&facet.query=price:[*+TO+500]&facet.query=price:[500+TO+*]

<response>
<responseHeader><status>0</status><QTime>11</QTime></responseHeader>
<result numFound="3" start="0"/>
<lst name="facet_counts">
 <lst name="facet_queries">
  <int name="price:[* TO 500]">2</int>
  <int name="price:[500 TO *]">1</int>
 </lst>
 <lst name="facet_fields">
  <lst name="inStock">
        <int name="false">2</int>
        <int name="true">1</int>
  </lst>
 </lst>
</lst>
</response>