Question

我已经在Solr中配置了Askerer，通过使用以下URL，我可以获得结果。

http://localhost:8983/solr/collection1/suggest?suggest=true&suggest.build=true&suggest.dictionary=mySuggester&suggest.q=Mo

但是要用SolrJ代码实现相同的目的，我在下面的代码段的第7行得到了下面的异常。

线程“主”中的异常java.lang.ClassCastException：org.apache.solr.common.util.SimpleOrderedMap无法转换为java.util.Map 在org.apache.solr.client.solrj.response.QueryResponse.setResponse（QueryResponse.java:161）在org.apache.solr.client.solrj.SolrRequest.process（SolrRequest.java:178）在org.apache.solr.client.solrj.SolrClient.query（SolrClient.java:942）在org.apache.solr.client.solrj.SolrClient.query（SolrClient.java:957）在com.finder.testsearch.SolrJBeanSearcher.main（SolrJBeanSearcher.java:71）

代码：

SolrQuery suggestionQuery = new SolrQuery();
suggestionQuery.setRequestHandler("/suggest");
suggestionQuery.set("suggest", "true");
suggestionQuery.set("suggest.build", "true");
suggestionQuery.set("suggest.dictionary", "mySuggester");
suggestionQuery.set("suggest.q", "Hom");
QueryResponse suggestionResponse = solr.query(suggestionQuery);

SuggesterResponse suggesterResponse = 
suggestionResponse.getSuggesterResponse();
Map<String,List<String>> suggestedTerms = 
suggesterResponse.getSuggestedTerms();
List<String> suggestions = suggestedTerms.get("mySuggester");

下面是solrconfig.xml条目。

<searchComponent name="suggest" class="solr.SuggestComponent">
<lst name="suggester">
  <str name="name">mySuggester</str>
  <str name="lookupImpl">FuzzyLookupFactory</str>
  <str name="dictionaryImpl">DocumentDictionaryFactory</str>
  <str name="field">tagsList</str>
  <str name="suggestAnalyzerFieldType">string</str>
  <str name="buildOnStartup">false</str>
</lst>
</searchComponent>

<requestHandler name="/suggest" class="solr.SearchHandler"
                  startup="lazy" >
  <lst name="defaults">
  <str name="suggest">true</str>
  <str name="suggest.count">10</str>
</lst>
<arr name="components">
  <str>suggest</str>
</arr>
</requestHandler>

任何建议。

谢谢。

Answer 1

SimpleOrderedMap与java.util.Map不相关，因此这就是您收到此错误的原因。

请参见https://lucene.apache.org/solr/6_0_0/solr-solrj/org/apache/solr/common/util/SimpleOrderedMap.html

获取用SolrJ

1 个答案: