我是Apache Solr的新手，所以请原谅我。我试图创建一个集合/核心，每次在Mac上加载Solr 4.10.4时，它都会保留在我的管理页面上。目前，每次打开Solr管理页面时，我都必须创建一个新的核心。
目前，我有我的solrd.xml，schema.xml和solr.xml文件，它们看起来如下：
Solrconfig.xml:

<?xml version="1.0" encoding="UTF-8" ?>
<config>
<luceneMatchVersion>LUCENE_43</luceneMatchVersion>
<requestDispatcher handleSelect="false">
<httpCaching never304="true" />
</requestDispatcher>
<requestHandler name="/select" class="solr.SearchHandler" />
<requestHandler name="/update" class="solr.UpdateRequestHandler" />
<requestHandler name="/admin" class="solr.admin.AdminHandlers" />
<requestHandler name="/analysis/field" class="solr.
FieldAnalysisRequestHandler" startup="lazy" />
</config>

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Schema.xml:

<?xml version="1.0" encoding="UTF-8" ?>
<schema version="1.5">
<fields>
<field name="id" type="string" indexed="true" stored="true"
required="true"/>
<field name="addr_from" type="string" indexed="true"
stored="true" required="true"/>
<field name="addr_to" type="string" indexed="true"
stored="true" required="true"/>
<field name="subject" type="string" indexed="true"
stored="true" required="true"/>
</fields>
<uniqueKey>id</uniqueKey>
<types>
<fieldType name="string" class="solr.StrField" />
</types>
</schema>

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Solr.xml:

<?xml version="1.0" encoding="UTF-8" ?>
<collection2>
<schema version="1.5">
<fields>
<field name="id" type="string" indexed="true" stored="true"
required="true"/>
<field name="addr_from" type="string" indexed="true"
stored="true" required="true"/>
<field name="addr_to" type="string" indexed="true"
stored="true" required="true"/>
<field name="subject" type="string" indexed="true"
stored="true" required="true"/>
</fields>
<uniqueKey>id</uniqueKey>
<types>
<fieldType name="string" class="solr.StrField" />
</types>
</schema>
<solr persistent="true">

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