引言:
solr搭建起后,就该应用到java后台开发里了,接下来就用springboot整合应用solr
一:引入jar包
<!--solr--> <dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-solr</artifactId> <version>4.0.6.RELEASE</version> </dependency> <!--操作solr的工具--> <dependency> <groupId>org.apache.solr</groupId> <artifactId>solr-solrj</artifactId> <version>8.0.0</version> </dependency>
二:对application配置文件进行配置(mycore1是我创建的核心,具体名字改为你所创建的核心)
spring:
data:
solr:
host: http://127.0.0.1:8983/solr/mycore1
三:接下来就是代码操作了(详细解释看注解),这个只是我的服务层
@Service public class SearchService { @Autowired private SolrClient solrClient; //search就是搜索的内容,currentpage是因为我做了分页,如果没做分页可忽略此参数 public PageResult searchNews(String search,int currentPage) throws IOException, SolrServerException { // 创建solr查询对象 SolrQuery query = new SolrQuery(); if(null != search && !"".equals(search)){ // 设置查询关键词 query.setQuery(search); // 设置默认查询域 query.set("df", "news_keywords"); } // 高亮显示 query.setHighlight(true); // 设置高亮显示字段 query.addHighlightField("newsTitle,newsAbstract"); query.setHighlightSimplePre("<span style='color:red'>"); query.setHighlightSimplePost("</span>"); // 设置排序规则 query.setSort("newsTime",SolrQuery.ORDER.desc); // 设置返回格式 query.set("wt","json"); // 设置分页 query.set("start", (currentPage - 1) * 10); query.set("rows", 10); // 进行查询得到返回结果 QueryResponse queryResponse = solrClient.query(query); // 取出高亮部分 Map<String, Map<String, List<String>>> highlighting = queryResponse.getHighlighting(); // 得到主体数据部分 SolrDocumentList results = queryResponse.getResults(); ArrayList<NewsWithBLOBs> newsList = new ArrayList<>(); // 对主体数据进行遍历,将数据依次保存到news对象中,然后将news对象加入list集合就是查询到的所有新闻 for (SolrDocument result : results){ NewsWithBLOBs news = new NewsWithBLOBs(); news.setNewsId(result.get("id").toString()); news.setNewsCover(result.get("newsCover").toString()); news.setNewsTime((Date) result.get("newsTime")); news.setNewsBrowse((Integer) result.get("newsBrowse")); news.setNewsSchoolid(result.get("newsSchoolid").toString()); news.setNewsCategoryid(result.get("newsCategoryid").toString()); news.setNewsAbstract(result.get("newsAbstract").toString()); news.setNewsContent(result.get("newsContent").toString()); // 设置高亮部分,下边是得到指定新闻id的高亮部分,并且将高亮部分设置进入对象中 Map<String, List<String>> map = highlighting.get(result.get("id")); List<String> list = map.get("newsAbstract"); if(null != list && list.size() > 0){ String newsAbstract = list.get(0); news.setNewsAbstract(newsAbstract); } List<String> list1 = map.get("newsTitle"); if(null != list1 && list1.size() > 0){ String newsTitle = list1.get(0); news.setNewsTitle(newsTitle); } newsList.add(news); } // 得到所获得的新闻条数 long numFound = results.getNumFound(); // 下边是我自己的分页封装,可忽略,上边的到的newslist就是获得的所有新闻 PageResult result = new PageResult(); result.setRecordCount(numFound); System.out.println(numFound); result.setTotalPages((int) (numFound%10 == 0 ? numFound/10 : numFound/10+1)); result.setList(newsList); return result; } }
通过上边就能获取到指定的查询对象了,并且高亮显示也正常