Solr无法索引我的表格

Question

我的solr主页未显示任何错误。但它没有从所需的表中获取信息。

DATA-CONFIG.XML

<dataConfig> 
 <dataSource type="JdbcDataSource" driver="com.mysql.jdbc.Driver" url="jdbc:mysql://localhost:3306/market_place" user="root" password="student" batchSize="1" />  
 <document name="persons">   
  <entity name="courses" query="SELECT * FROM courses">    
   <field column="id" name="id"/>    
   <field column="name" name="name"/>    
   <field column="duration" name="duration"/>    
   <field column="fee" name="fee"/>    
  <!-- <field column="UNIVERSITY" name="university"/>   -->
  </entity>  
 </document>
</dataConfig>

我在solrconfig.xml中所做的更改

 <lib dir="../../contrib/dataimporthandler/lib" regex=".*\.jar" />
  <lib dir="../../dist/" regex="apache-solr-dataimporthandler-\d.*\.jar" />

  <lib dir="../../dist/" regex="mysql-connector-java-\d.*\.jar" />



 <requestHandler name="/dataimport" class="org.apache.solr.handler.dataimport.DataImportHandler">
 <lst name="defaults">  
 <str name="config">data-config.xml</str>
 </lst> 
  </requestHandler>

schema.xml中的更改

 <field name="id" type="string" indexed="true" stored="true"/>
     <field name="name" type="string" indexed="true" stored="true"/>
     <field name="duration" type="string" indexed="true" stored="true"/>
     <field name="fee" type="double" indexed="true" stored="true"/>