Solr7.2 single-host code query instance, solr7.2 single-host instance

Solr7.2 single-host code query instance, solr7.2 single-host instance
Solr uses code instances

Solr is well-known in the search field. I 've been reading this part on and off recently. I don't want to talk about the theory first. I'll record the code on the disk:

Spring configuration file

Controller

@ Autowired private SearchService searchService; @ RequestMapping ("/q") @ ResponseBody public TaotaoResult search (@ RequestParam (defaultValue = "") String keyword, @ RequestParam (defaultValue = "1 ") integer page, @ RequestParam (defaultValue = "30") Integer rows) {// convert String try {keyword = new String (keyword. getBytes ("iso8859-1"), "UTF-8");} catch (UnsupportedEncodingException e) {e. printStackTrace ();} SearchResult searchResult = null; try {searchResult = searchService. search (keyword, page, rows);} catch (Exception e) {e. printStackTrace (); return TaotaoResult. build (500, ExceptionUtil. getStackTrace (e);} return TaotaoResult. OK (searchResult );}

Service implementation

@ Servicepublic class SearchServiceImpl implements SearchService {@ Autowired private SearchDao searchDao; @ Override public SearchResult search (String queryString, int page, int rows) throws Exception {// create a query condition SolrQuery query = new SolrQuery (); // set a query condition. setQuery (queryString); // sets the paging condition query. setStart (page-1) * rows); query. setRows (rows); // sets the default search domain query. set ("df", "item_title"); // sets the highlighted query. setHighlight (true); query. addHighlightField ("item_title"); query. setHighlightSimplePre (""); query. setHighlightSimplePost (""); // execute the SearchResult searchResult = searchDao. search (query); // calculate the total number of pages Long recordCount = searchResult. getRecordCount (); int pageCount = (int) (recordCount/rows); if (recordCount % rows> 0) {pageCount ++;} searchResult. setPageCount (pageCount); searchResult. setCurPage (page); return searchResult ;}}

* Dao implementation

@ Repositorypublic class SearchDaoImpl implements SearchDao {@ Autowired private SolrServer solrServer; @ Override public SearchResult search (SolrQuery query) throws Exception {// execute QueryResponse response = solrServer. query (query); // obtain the query result list SolrDocumentList solrDocumentList = response. getResults (); List
 
  
ItemList = new ArrayList <> (); for (SolrDocument solrDocument: solrDocumentList) {// create a SearchItem object SearchItem item = new SearchItem (); item. setNameCategoryName (String) solrDocument. get ("item_category_name"); item. setId (String) solrDocument. get ("id"); item. setImage (String) solrDocument. get ("item_image"); item. setPrice (Long) solrDocument. get ("item_price"); item. setSellPoint (String) solrDocument. get ("item_sell_point"); // retrieves the highlighted Map
  
   
> Highlighting = response. getHighlighting (); List
   
    
List = highlighting. get (solrDocument. get ("id"). get ("item_title"); String itemTitle = ""; if (list! = Null & list. size ()> 0) {// obtain the highlighted result itemTitle = list. get (0);} else {itemTitle = (String) solrDocument. get ("item_title");} item. setTitle (itemTitle); // Add it to the itemList. add (item) ;}searchresult result = new SearchResult (); result. setItemList (itemList); // The total number of query results. setRecordCount (solrDocumentList. getNumFound (); return result ;}}
   
  
 

* Test class

@ Test public void testSolrJ () {// create a connection to SolrServer solrServer = new HttpSolrServer ("https: // 192.168.6.57: 8983/solr/core2 "); // create a document Object SolrInputDocument document = new SolrInputDocument (); // Add the domain document. addField ("id", "solrtest01"); document. addField ("item_title", "test item"); document. addField ("item_sell_point", ""); // Add it to the index library try {solrServer. add (document); // submit solrServer. commit ();} catch (SolrServerException e) {e. printStackTrace ();} catch (IOException e) {e. printStackTrace () ;}@ Test public void testQuery () {SolrServer solrServer = new HttpSolrServer ("https: // 192.168.6.57: 8983/solr/core2 "); // create a query object SolrQuery query = new SolrQuery (); query. setQuery ("*: *"); // execute the query try {QueryResponse response = solrServer. query (query); SolrDocumentList solrDocumentsList = response. getResults (); for (SolrDocument solrdocument: solrDocumentsList) {System. out. println (solrdocument. get ("id"); System. out. println (solrdocument. get ("item_title"); System. out. println (solrdocument. get ("item_sell_point");} catch (SolrServerException e) {e. printStackTrace ();}}