🎨 搜索结果展示效果优化
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ronger
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60d3380758
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@ -9,6 +9,7 @@ import com.rymcu.forest.lucene.service.LuceneService;
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import com.rymcu.forest.lucene.util.ArticleIndexUtil;
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import com.rymcu.forest.lucene.util.LucenePath;
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import com.rymcu.forest.lucene.util.SearchUtil;
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import com.rymcu.forest.util.Html2TextUtil;
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import org.apache.lucene.analysis.Analyzer;
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import org.apache.lucene.analysis.TokenStream;
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import org.apache.lucene.document.Document;
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@ -41,157 +42,162 @@ import java.util.concurrent.Executors;
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@Service
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public class LuceneServiceImpl implements LuceneService {
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@Resource private ArticleLuceneMapper luceneMapper;
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@Resource
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private ArticleLuceneMapper luceneMapper;
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/**
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* 将文章的数据解析为一个个关键字词存储到索引文件中
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*
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* @param list
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*/
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@Override
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public void writeArticle(List<ArticleLucene> list) {
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try {
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int totalCount = list.size();
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int perThreadCount = 3000;
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int threadCount = totalCount / perThreadCount + (totalCount % perThreadCount == 0 ? 0 : 1);
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ExecutorService pool = Executors.newFixedThreadPool(threadCount);
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CountDownLatch countDownLatch1 = new CountDownLatch(1);
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CountDownLatch countDownLatch2 = new CountDownLatch(threadCount);
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/**
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* 将文章的数据解析为一个个关键字词存储到索引文件中
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*
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* @param list
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*/
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@Override
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public void writeArticle(List<ArticleLucene> list) {
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try {
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int totalCount = list.size();
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int perThreadCount = 3000;
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int threadCount = totalCount / perThreadCount + (totalCount % perThreadCount == 0 ? 0 : 1);
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ExecutorService pool = Executors.newFixedThreadPool(threadCount);
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CountDownLatch countDownLatch1 = new CountDownLatch(1);
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CountDownLatch countDownLatch2 = new CountDownLatch(threadCount);
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for (int i = 0; i < threadCount; i++) {
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int start = i * perThreadCount;
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int end = Math.min((i + 1) * perThreadCount, totalCount);
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List<ArticleLucene> subList = list.subList(start, end);
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Runnable runnable =
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new ArticleBeanIndex(
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LucenePath.ARTICLE_INDEX_PATH, i, countDownLatch1, countDownLatch2, subList);
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// 子线程交给线程池管理
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pool.execute(runnable);
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}
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countDownLatch1.countDown();
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System.out.println("开始创建索引");
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// 等待所有线程都完成
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countDownLatch2.await();
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// 线程全部完成工作
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System.out.println("所有线程都创建索引完毕");
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// 释放线程池资源
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pool.shutdown();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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@Override
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public void writeArticle(String id) {
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writeArticle(luceneMapper.getById(id));
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}
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@Override
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public void writeArticle(ArticleLucene articleLucene) {
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ArticleIndexUtil.addIndex(articleLucene);
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}
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@Override
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public void updateArticle(String id) {
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ArticleIndexUtil.updateIndex(luceneMapper.getById(id));
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}
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@Override
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public void deleteArticle(String id) {
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ArticleIndexUtil.deleteIndex(id);
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}
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/**
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* 关键词搜索
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*
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* @param value
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* @return
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* @throws Exception
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*/
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@Override
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public List<ArticleLucene> searchArticle(String value) {
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List<ArticleLucene> resList = new ArrayList<>();
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ExecutorService service = Executors.newCachedThreadPool();
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// 定义分词器
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Analyzer analyzer = new IKAnalyzer();
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try {
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IndexSearcher searcher =
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SearchUtil.getIndexSearcherByParentPath(LucenePath.ARTICLE_INDEX_PATH, service);
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String[] fields = {"title", "summary"};
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// 构造Query对象
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MultiFieldQueryParser parser = new MultiFieldQueryParser(fields, analyzer);
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BufferedReader in =
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new BufferedReader(new InputStreamReader(System.in, StandardCharsets.UTF_8));
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String line = value != null ? value : in.readLine();
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Query query = parser.parse(line);
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// 最终被分词后添加的前缀和后缀处理器，默认是粗体<B></B>
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SimpleHTMLFormatter htmlFormatter =
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new SimpleHTMLFormatter("<font color=" + "\"" + "red" + "\"" + ">", "</font>");
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// 高亮搜索的词添加到高亮处理器中
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Highlighter highlighter = new Highlighter(htmlFormatter, new QueryScorer(query));
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// 获取搜索的结果，指定返回document返回的个数
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// TODO 默认搜索结果为显示第一页，1000 条，可以优化
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TopDocs results = SearchUtil.getScoreDocsByPerPage(1, 100, searcher, query);
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ScoreDoc[] hits = results.scoreDocs;
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// 遍历，输出
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for (ScoreDoc hit : hits) {
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int id = hit.doc;
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float score = hit.score;
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Document hitDoc = searcher.doc(hit.doc);
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// 获取到summary
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String name = hitDoc.get("summary");
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// 将查询的词和搜索词匹配，匹配到添加前缀和后缀
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TokenStream tokenStream =
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TokenSources.getAnyTokenStream(searcher.getIndexReader(), id, "summary", analyzer);
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// 传入的第二个参数是查询的值
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TextFragment[] frag = highlighter.getBestTextFragments(tokenStream, name, false, 10);
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StringBuilder baikeValue = new StringBuilder();
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for (TextFragment textFragment : frag) {
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if ((textFragment != null) && (textFragment.getScore() > 0)) {
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// if ((frag[j] != null)) {
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// 获取 summary 的值
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baikeValue.append(textFragment);
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}
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for (int i = 0; i < threadCount; i++) {
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int start = i * perThreadCount;
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int end = Math.min((i + 1) * perThreadCount, totalCount);
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List<ArticleLucene> subList = list.subList(start, end);
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Runnable runnable =
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new ArticleBeanIndex(
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LucenePath.ARTICLE_INDEX_PATH, i, countDownLatch1, countDownLatch2, subList);
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// 子线程交给线程池管理
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pool.execute(runnable);
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}
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countDownLatch1.countDown();
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System.out.println("开始创建索引");
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// 等待所有线程都完成
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countDownLatch2.await();
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// 线程全部完成工作
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System.out.println("所有线程都创建索引完毕");
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// 释放线程池资源
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pool.shutdown();
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} catch (Exception e) {
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e.printStackTrace();
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}
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// 获取到title
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String title = hitDoc.get("title");
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TokenStream titleTokenStream =
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TokenSources.getAnyTokenStream(searcher.getIndexReader(), id, "title", analyzer);
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TextFragment[] titleFrag =
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highlighter.getBestTextFragments(titleTokenStream, title, false, 10);
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StringBuilder titleValue = new StringBuilder();
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for (int j = 0; j < titleFrag.length; j++) {
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if ((frag[j] != null)) {
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titleValue.append(titleFrag[j].toString());
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}
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}
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resList.add(
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ArticleLucene.builder()
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.idArticle(hitDoc.get("id"))
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.articleTitle(titleValue.toString())
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.articleContent(baikeValue.toString())
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.score(String.valueOf(score))
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.build());
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}
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} catch (IOException | ParseException | InvalidTokenOffsetsException e) {
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e.printStackTrace();
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} finally {
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service.shutdownNow();
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}
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return resList;
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}
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@Override
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public List<ArticleLucene> getAllArticleLucene() {
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return luceneMapper.getAllArticleLucene();
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}
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@Override
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public void writeArticle(String id) {
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writeArticle(luceneMapper.getById(id));
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}
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@Override
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public List<ArticleDTO> getArticlesByIds(String[] ids) {
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return luceneMapper.getArticlesByIds(ids);
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}
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@Override
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public void writeArticle(ArticleLucene articleLucene) {
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ArticleIndexUtil.addIndex(articleLucene);
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}
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@Override
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public void updateArticle(String id) {
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ArticleIndexUtil.updateIndex(luceneMapper.getById(id));
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}
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@Override
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public void deleteArticle(String id) {
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ArticleIndexUtil.deleteIndex(id);
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}
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/**
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* 关键词搜索
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*
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* @param value
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* @return
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* @throws Exception
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*/
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@Override
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public List<ArticleLucene> searchArticle(String value) {
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List<ArticleLucene> resList = new ArrayList<>();
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ExecutorService service = Executors.newCachedThreadPool();
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// 定义分词器
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Analyzer analyzer = new IKAnalyzer();
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try {
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IndexSearcher searcher =
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SearchUtil.getIndexSearcherByParentPath(LucenePath.ARTICLE_INDEX_PATH, service);
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String[] fields = {"title", "summary"};
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// 构造Query对象
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MultiFieldQueryParser parser = new MultiFieldQueryParser(fields, analyzer);
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BufferedReader in =
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new BufferedReader(new InputStreamReader(System.in, StandardCharsets.UTF_8));
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String line = value != null ? value : in.readLine();
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Query query = parser.parse(line);
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// 最终被分词后添加的前缀和后缀处理器，默认是粗体<B></B>
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SimpleHTMLFormatter htmlFormatter =
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new SimpleHTMLFormatter("<font color=" + "\"" + "red" + "\"" + ">", "</font>");
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// 高亮搜索的词添加到高亮处理器中
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Highlighter highlighter = new Highlighter(htmlFormatter, new QueryScorer(query));
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// 获取搜索的结果，指定返回document返回的个数
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// TODO 默认搜索结果为显示第一页，1000 条，可以优化
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TopDocs results = SearchUtil.getScoreDocsByPerPage(1, 100, searcher, query);
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ScoreDoc[] hits = results.scoreDocs;
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// 遍历，输出
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for (ScoreDoc hit : hits) {
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int id = hit.doc;
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float score = hit.score;
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Document hitDoc = searcher.doc(hit.doc);
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// 获取到summary
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String name = hitDoc.get("summary");
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// 将查询的词和搜索词匹配，匹配到添加前缀和后缀
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TokenStream tokenStream =
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TokenSources.getAnyTokenStream(searcher.getIndexReader(), id, "summary", analyzer);
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// 传入的第二个参数是查询的值
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TextFragment[] frag = highlighter.getBestTextFragments(tokenStream, name, false, 10);
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StringBuilder baikeValue = new StringBuilder();
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for (TextFragment textFragment : frag) {
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if ((textFragment != null) && (textFragment.getScore() > 0)) {
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// if ((frag[j] != null)) {
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// 获取 summary 的值
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baikeValue.append(textFragment);
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}
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}
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// 获取到title
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String title = hitDoc.get("title");
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TokenStream titleTokenStream =
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TokenSources.getAnyTokenStream(searcher.getIndexReader(), id, "title", analyzer);
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TextFragment[] titleFrag =
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highlighter.getBestTextFragments(titleTokenStream, title, false, 10);
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StringBuilder titleValue = new StringBuilder();
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for (int j = 0; j < titleFrag.length; j++) {
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if ((frag[j] != null)) {
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titleValue.append(titleFrag[j].toString());
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}
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}
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resList.add(
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ArticleLucene.builder()
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.idArticle(hitDoc.get("id"))
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.articleTitle(titleValue.toString())
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.articleContent(baikeValue.toString())
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.score(String.valueOf(score))
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.build());
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}
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} catch (IOException | ParseException | InvalidTokenOffsetsException e) {
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e.printStackTrace();
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} finally {
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service.shutdownNow();
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}
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return resList;
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}
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@Override
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public List<ArticleLucene> getAllArticleLucene() {
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List<ArticleLucene> list = luceneMapper.getAllArticleLucene();
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for (ArticleLucene articleLucene : list) {
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articleLucene.setArticleContent(Html2TextUtil.getContent(articleLucene.getArticleContent()));
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}
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return list;
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}
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@Override
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public List<ArticleDTO> getArticlesByIds(String[] ids) {
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return luceneMapper.getArticlesByIds(ids);
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}
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}
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@ -32,7 +32,7 @@
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<result column="article_sponsor_count" property="articleSponsorCount"></result>
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</resultMap>
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<select id="getAllArticleLucene" resultMap="ResultMapWithBLOBs">
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select art.id, art.article_title, content.article_content
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select art.id, art.article_title, content.article_content_html as article_content
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from forest_article art
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join forest_article_content content on art.id = content.id_article
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where article_status = 0;
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