solr异常解决

使用solr1.4跟solr3.1时，配置了个唯一id类型是sint 或者int,启动时在tomcat后台就会抛出这个异常：

org.apache.solr.common.SolrException:

 QueryElevationComponent requires the schema to have a uniqueKeyField implemented using StrField。

之前都是将sint或者int换为StrField类型解决问题的，后来发现只要去掉solrconfig.xml配置的 即 Elevation 组件就可以了：

<!-- Query Elevation Component

       http://wiki.apache.org/solr/QueryElevationComponent

       a search component that enables you to configure the top
       results for a given query regardless of the normal lucene
       scoring.
    -->
  <searchComponent name="elevator" class="solr.QueryElevationComponent" >
    <!-- pick a fieldType to analyze queries -->
    <str name="queryFieldType">string</str>
    <str name="config-file">elevate.xml</str>
  </searchComponent>

  <!-- A request handler for demonstrating the elevator component -->
  <requestHandler name="/elevate" class="solr.SearchHandler" startup="lazy">
    <lst name="defaults">
      <str name="echoParams">explicit</str>
      <str name="df">text</str>
    </lst>
    <arr name="last-components">
      <str>elevator</str>
    </arr>
  </requestHandler>