SOLR Smart Tips (suggest)

E-commerce search in order to achieve such a function, when the input text, drop-down box prompt. Similar to Baidu search

In the Lucene-based SOLR search engine, where the division is famous. Provides this feature for spell checking and smart hints.

The spelling checker is used to check whether a user's input is present or not, and if it doesn't exist, give it a hint of something similar, or anything like it.

The search suggestion is that after the user enters a search condition, it will give a series of prompt content immediately, and recommend the first appearance similar words, as the recommendation Word.

That is, the spelling checker can be used as a separate feature, but suggest generally refers to spelling check pieces

Implementation process, configuration Solrconfig.xml

  <searchcomponent name= "suggest" class= "SOLR. Spellcheckcomponent "> <!--<str name=" Queryanalyzerfieldtype ">text_general</str>-<l St Name= "spellchecker" > <str name= "name" >suggest</str> <str name= "ClassName" >or g.apache.solr.spelling.suggest.suggester</str> <str name= "Lookupimpl" >org.apache.solr.spelling.sugg est.tst.tstlookup</str> <str name= "field" >article</str> <float name= "threshold" >0          .0001</float> <!--Use the custom suggest Word store Word to cancel the comments of the following two lines <str name= sourcelocation >suggest.txt</str> <str name= "Spellcheckindexdir" >spellchecker</str>--> <str name= "Comparatorclass" >f req</str> <str name= "buildonoptimize" >true</str> <str name= "Buildoncommit" >true& lt;/str> </lst> </searchComponent> <requesthandler name= "/suGgest "class=" SOLR.            Searchhandler "> <lst name=" Defaults "> <str name=" spellcheck ">true</str>            <str name= "Spellcheck.dictionary" >suggest</str> <str name= "Spellcheck.count" >11</str> <str name= "Spellcheck.onlymorepopular" >true</str> <str name= "Spellcheck.extendedresults" >false</str> <str name= "Spellcheck.collate" >true</str> <!--<str Name= "s Pellcheck.build ">true</str> </lst> <arr name=" Components "> &LT;STR&G T;suggest</str> </arr> </requestHandler>

Restart the SOLR service. Executing SOLRJ client code

/** * @method: SpellCheck * @Description: Smart tips in SOLR called suggest module */public static list< Map<string, string>> suggest (String word,string corename) {solrserver server=indexer.gethttpsolrserver ( Corename); list<map<string, string>> wordList = new arraylist<map<string, string>> (); try {SolrQuery query = new Solrquery (); Query.set ("Q", word);//Query the word query.set ("qt", "/suggest");//request to suggest//query.set (" Spellcheck.count "," "");//return quantity queryresponse RSP = server.query (query);//The code above results Spellcheckresponse re = Rsp.getspellcheckresponse ();//Gets the result set of the spelling check if (re! = null) {for (Suggestion S:re.getsuggestions ()) {list<string> Li  st = S.getalternatives ();//Gets all the search terms for (String spellword:list) {map<string, string> Map = new hashmap<string, String> (); Map.put ("Code", Spellword); Wordlist.add (map);}} String t = re.getfirstsuggestion (WORD);//Gets the first recommended word}} catch (Exception e) {e.printstacktrace ();} return wordList;} 

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SOLR Smart Tips (suggest)