Java Code Examples for org.apache.lucene.search.highlight.Highlighter#getBestFragment()

The following examples show how to use org.apache.lucene.search.highlight.Highlighter#getBestFragment() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: SearchManager.java From maven-framework-project with MIT License

4 votes

public static void main(String[] args) throws Exception{
		ApplicationContext applicationContext=new ClassPathXmlApplicationContext("applicationContext.xml");
		SessionFactory sessionFactory = applicationContext.getBean("hibernate4sessionFactory",SessionFactory.class);
		FullTextSession fullTextSession = Search.getFullTextSession(sessionFactory.openSession());
		
		//使用Hibernate Search api查询 从多个字段匹配 name、description、authors.name
//		QueryBuilder qb = fullTextEntityManager.getSearchFactory().buildQueryBuilder().forEntity(Book.class ).get();
//		Query luceneQuery = qb.keyword().onFields("name","description","authors.name").matching("移动互联网").createQuery();
		
		//使用lucene api查询 从多个字段匹配 name、description、authors.name
		//使用庖丁分词器
		MultiFieldQueryParser queryParser=new MultiFieldQueryParser(Version.LUCENE_36, new String[]{"name","description","authors.name"}, new PaodingAnalyzer());
		Query luceneQuery=queryParser.parse("实战");
		
		FullTextQuery fullTextQuery =fullTextSession.createFullTextQuery(luceneQuery, Book.class);
		//设置每页显示多少条
		fullTextQuery.setMaxResults(5);
		//设置当前页
		fullTextQuery.setFirstResult(0);
		
		//高亮设置
		SimpleHTMLFormatter formatter=new SimpleHTMLFormatter("<b><font color='red'>", "<font/></b>");
		QueryScorer queryScorer=new QueryScorer(luceneQuery);
		Highlighter highlighter=new Highlighter(formatter, queryScorer);

		@SuppressWarnings("unchecked")
		List<Book> resultList = fullTextQuery.list();
		System.out.println("共查找到["+resultList.size()+"]条记录");
		for (Book book : resultList) {
			String highlighterString=null;
			Analyzer analyzer=new PaodingAnalyzer();
			try {
				//高亮name
				highlighterString=highlighter.getBestFragment(analyzer, "name", book.getName());
				if(highlighterString!=null){
					book.setName(highlighterString);
				}
				//高亮authors.name
				Set<Author> authors = book.getAuthors();
				for (Author author : authors) {
					highlighterString=highlighter.getBestFragment(analyzer, "authors.name", author.getName());
					if(highlighterString!=null){
						author.setName(highlighterString);
					}
				}
				//高亮description
				highlighterString=highlighter.getBestFragment(analyzer, "description", book.getDescription());
				if(highlighterString!=null){
					book.setDescription(highlighterString);
				}
			} catch (Exception e) {
			}
			
			System.out.println("书名:"+book.getName()+"\n描述:"+book.getDescription()+"\n出版日期:"+book.getPublicationDate());
			System.out.println("----------------------------------------------------------");
		}
		
		fullTextSession.close();
		sessionFactory.close();
		
	}

Example 2

Source File: BookDaoImpl.java From maven-framework-project with MIT License

4 votes

@Override
public QueryResult<Book> query(String keyword, int start, int pagesize,Analyzer analyzer,String...field) throws Exception{
	
	QueryResult<Book> queryResult=new QueryResult<Book>();
	
	List<Book> books=new ArrayList<Book>();
	
	FullTextSession fullTextSession = Search.getFullTextSession(getSession());
	
	//使用Hibernate Search api查询 从多个字段匹配 name、description、authors.name
	//QueryBuilder qb = fullTextSession.getSearchFactory().buildQueryBuilder().forEntity(Book.class ).get();
	//Query luceneQuery = qb.keyword().onFields(field).matching(keyword).createQuery();

	//使用lucene api查询 从多个字段匹配 name、description、authors.name
	
	MultiFieldQueryParser queryParser=new MultiFieldQueryParser(Version.LUCENE_36,new String[]{"name","description","authors.name"}, analyzer);
	Query luceneQuery=queryParser.parse(keyword);
	
	FullTextQuery fullTextQuery = fullTextSession.createFullTextQuery(luceneQuery);
	int searchresultsize = fullTextQuery.getResultSize();
	queryResult.setSearchresultsize(searchresultsize);
	System.out.println("共查找到["+searchresultsize+"]条记录");
	
	fullTextQuery.setFirstResult(start);
	fullTextQuery.setMaxResults(pagesize);
	
	//设置按id排序
	fullTextQuery.setSort(new Sort(new SortField("id", SortField.INT ,true)));
	
	//高亮设置
	SimpleHTMLFormatter formatter=new SimpleHTMLFormatter("<b><font color='red'>", "</font></b>");
	QueryScorer queryScorer=new QueryScorer(luceneQuery);
	Highlighter highlighter=new Highlighter(formatter, queryScorer);

	@SuppressWarnings("unchecked")
	List<Book> tempresult = fullTextQuery.list();
	for (Book book : tempresult) {
		String highlighterString=null;
		try {
			//高亮name
			highlighterString=highlighter.getBestFragment(analyzer, "name", book.getName());
			if(highlighterString!=null){
				book.setName(highlighterString);
			}
			//高亮authors.name
			Set<Author> authors = book.getAuthors();
			for (Author author : authors) {
				highlighterString=highlighter.getBestFragment(analyzer, "authors.name", author.getName());
				if(highlighterString!=null){
					author.setName(highlighterString);
				}
			}
			//高亮description
			highlighterString=highlighter.getBestFragment(analyzer, "description", book.getDescription());
			if(highlighterString!=null){
				book.setDescription(highlighterString);
			}
		} catch (Exception e) {
		}
		
		books.add(book);
		
		
		System.out.println("书名:"+book.getName()+"\n描述:"+book.getDescription()+"\n出版日期:"+book.getPublicationDate());
		System.out.println("----------------------------------------------------------");
	}
	
	queryResult.setSearchresult(books);
	
	return queryResult;
}

Example 3

Source File: SearchManager.java From maven-framework-project with MIT License

4 votes

public static void main(String[] args) throws Exception{
		ApplicationContext applicationContext=new ClassPathXmlApplicationContext("applicationContext.xml");
		EntityManagerFactory entityManagerFactory = applicationContext.getBean("entityManagerFactory",EntityManagerFactory.class);
		FullTextEntityManager fullTextEntityManager = Search.getFullTextEntityManager(entityManagerFactory.createEntityManager());
		
		//使用Hibernate Search api查询 从多个字段匹配 name、description、authors.name
//		QueryBuilder qb = fullTextEntityManager.getSearchFactory().buildQueryBuilder().forEntity(Book.class ).get();
//		Query luceneQuery = qb.keyword().onFields("name","description","authors.name").matching("移动互联网").createQuery();
		
		//使用lucene api查询 从多个字段匹配 name、description、authors.name
		//使用庖丁分词器
		MultiFieldQueryParser queryParser=new MultiFieldQueryParser(Version.LUCENE_36, new String[]{"name","description","authors.name"}, new PaodingAnalyzer());
		Query luceneQuery=queryParser.parse("实战");
		
		FullTextQuery fullTextQuery =fullTextEntityManager.createFullTextQuery(luceneQuery, Book.class);
		//设置每页显示多少条
		fullTextQuery.setMaxResults(5);
		//设置当前页
		fullTextQuery.setFirstResult(0);
		
		//高亮设置
		SimpleHTMLFormatter formatter=new SimpleHTMLFormatter("<b><font color='red'>", "<font/></b>");
		QueryScorer queryScorer=new QueryScorer(luceneQuery);
		Highlighter highlighter=new Highlighter(formatter, queryScorer);

		@SuppressWarnings("unchecked")
		List<Book> resultList = fullTextQuery.getResultList();
		
		for (Book book : resultList) {
			String highlighterString=null;
			Analyzer analyzer=new PaodingAnalyzer();
			try {
				//高亮name
				highlighterString=highlighter.getBestFragment(analyzer, "name", book.getName());
				if(highlighterString!=null){
					book.setName(highlighterString);
				}
				//高亮authors.name
				Set<Author> authors = book.getAuthors();
				for (Author author : authors) {
					highlighterString=highlighter.getBestFragment(analyzer, "authors.name", author.getName());
					if(highlighterString!=null){
						author.setName(highlighterString);
					}
				}
				//高亮description
				highlighterString=highlighter.getBestFragment(analyzer, "description", book.getDescription());
				if(highlighterString!=null){
					book.setDescription(highlighterString);
				}
			} catch (Exception e) {
			}
			
		}
		
		fullTextEntityManager.close();
		entityManagerFactory.close();
		
	}

Example 4

Source File: BookDaoImpl.java From maven-framework-project with MIT License

4 votes

@Override
public QueryResult<Book> query(String keyword, int start, int pagesize,Analyzer analyzer,String...field) throws Exception{
	
	QueryResult<Book> queryResult=new QueryResult<Book>();
	
	List<Book> books=new ArrayList<Book>();
	
	FullTextEntityManager fullTextEntityManager = Search.getFullTextEntityManager(em);
	
	//使用Hibernate Search api查询 从多个字段匹配 name、description、authors.name
	//QueryBuilder qb = fullTextSession.getSearchFactory().buildQueryBuilder().forEntity(Book.class ).get();
	//Query luceneQuery = qb.keyword().onFields(field).matching(keyword).createQuery();

	//使用lucene api查询 从多个字段匹配 name、description、authors.name
	
	MultiFieldQueryParser queryParser=new MultiFieldQueryParser(Version.LUCENE_36,new String[]{"name","description","authors.name"}, analyzer);
	Query luceneQuery=queryParser.parse(keyword);
	
	FullTextQuery fullTextQuery = fullTextEntityManager.createFullTextQuery(luceneQuery);
	int searchresultsize = fullTextQuery.getResultSize();
	queryResult.setSearchresultsize(searchresultsize);
			
	fullTextQuery.setFirstResult(start);
	fullTextQuery.setMaxResults(pagesize);
	
	//设置按id排序
	fullTextQuery.setSort(new Sort(new SortField("id", SortField.INT ,true)));
	
	//高亮设置
	SimpleHTMLFormatter formatter=new SimpleHTMLFormatter("<b><font color='red'>", "</font></b>");
	QueryScorer queryScorer=new QueryScorer(luceneQuery);
	Highlighter highlighter=new Highlighter(formatter, queryScorer);

	@SuppressWarnings("unchecked")
	List<Book> tempresult = fullTextQuery.getResultList();
	for (Book book : tempresult) {
		String highlighterString=null;
		try {
			//高亮name
			highlighterString=highlighter.getBestFragment(analyzer, "name", book.getName());
			if(highlighterString!=null){
				book.setName(highlighterString);
			}
			//高亮authors.name
			Set<Author> authors = book.getAuthors();
			for (Author author : authors) {
				highlighterString=highlighter.getBestFragment(analyzer, "authors.name", author.getName());
				if(highlighterString!=null){
					author.setName(highlighterString);
				}
			}
			//高亮description
			highlighterString=highlighter.getBestFragment(analyzer, "description", book.getDescription());
			if(highlighterString!=null){
				book.setDescription(highlighterString);
			}
		} catch (Exception e) {
		}
		
		books.add(book);	
		
	}
	
	queryResult.setSearchresult(books);
	
	return queryResult;
}