我与solr--solrJ

Posted 2020-08-10 DASOU

SolrJ索引库：

solr提供的一个客户端操作框架，在文件/solr6.2/dist下面可以找到该jar包solrj.jar以及相关jar包,可以使用maven添加。

 

java使用solrJ如下：

@Service
public class IntelligenceWordSolrDAOImpl implements IntelligenceWordSolrDAO {

    private static final String URL = Config.getString("config.solr.url.mycore");

    /**
     * 获取solrService对象
     *
     * @return
     */
    private SolrClient getSolrService() {

        String urlString = "http://192.168.1.12:8080/solr/mycore";
        SolrClient solr = new HttpSolrClient.Builder(urlString).build();

        return solr;
    }

    /**
     * 在搜索器引擎中创建索引
     *
     * @param intelligenceList
     */
    public void add(List<Intelligence> intelligenceList) throws Exception {

        SolrClient solr = getSolrService();

        List<SolrInputDocument> SolrInputDocumentList = Lists.newArrayList();
        intelligenceList.forEach(intelligence -> SolrInputDocumentList.add(initProperty(intelligence)));

        solr.add(SolrInputDocumentList);
        solr.commit();
    }

    /**
     * 查询数据
     *
     * @param param 匹配的参数集合
     * @return 文档的数量
     * @throws Exception
     */
    public Long query(String[] param, Integer limit) throws Exception {

        Integer branchId = LoginContext.getBranchId();
        SolrClient solr = getSolrService();
        SolrQuery query = new SolrQuery();

        StringBuffer buffer = new StringBuffer();
        for (int i = 0; i < param.length; i++) {
            if (i + 1 == param.length) {
                buffer.append("\\"" + param[i] + "\\"");
            } else {
                buffer.append("\\"" + param[i] + "\\"" + " OR ");
            }
        }

        //根据时间限制设置选定条件
        DateTime dateTime = new DateTime();
        dateTime.minusDays(limit);
        Date queryTime = dateTime.toDate();

        String queryStr = "text:(" + buffer.toString() + ")";
        query.add(queryStr);

        //时间限定
        String limitStr = "collectTime:[" + queryTime + " TO *]";
        String branchStr = "branchId:("+branchId+")";
        query.add(limitStr);
        query.add(branchStr);

        // String allQuery = queryStr+" AND "+limitStr+" AND "+branchStr;

        //query.setQuery(allQuery);

        QueryResponse response = solr.query(query);

        //获取返回的数据
        SolrDocumentList solrDocumentList = response.getResults();
        return solrDocumentList.getNumFound();
    }

    /**
     * 初始化
     *
     * @param param
     * @return
     */
    public SolrInputDocument initProperty(Intelligence param) {

        Assert.notNull(param, "param not be null");
        SolrInputDocument document = new SolrInputDocument();
        document.addField("id", param.getIntelligenceId());
        document.addField("intelligenceId", param.getIntelligenceId());
        document.addField("title", param.getTitle());
        document.addField("content", param.getContent());
        document.addField("collectTime", param.getCollectTime().getTime());
        document.addField("branchId", param.getBranchId());

        return document;
    }

}