1、SolrJ

solrj是訪問Solr服務的java客戶端，提供索引和搜尋的請求方法，java程式通過SolrJ請求Solr服務，最終Solr完在索引和搜尋

2、增加文件

  @Test
    public void addDocument() throws Exception {
        SolrServer solrServer = new HttpSolrServer("http://localhost:8080/solr");
        SolrInputDocument document = new SolrInputDocument();
       
        document.addField("
 
id", "p1");
        document.addField("title_ik", "z");
        document.addField("content_ik", "酸酸甜甜");
        document.addField("product_name", "橘子");
    
        solrServer.add(document);
     
        solrServer.commit();
    }

先獲取Solr的連線，然後向文件中新增域，最後將域提交

"response": {
    "numFound": 1,
    
 
"start": 0,
    "docs": [
      {
        "id": "p1",
        "title_ik": "z",
        "product_name": "橘子",
        "_version_": 1686879363571646500
      }
    ]

3、更新

與新增一樣，ID相同時增加，ID不同是更新

4、刪除

（1）根據ID

@Test
    public void deleteDocumentByid() throws Exception {
        SolrServer solrServer = new
 
 HttpSolrServer("http://localhost:8080/solr");
        solrServer.deleteById("c0001")；
        solrServer.commit();
    }

（2）根據條件

solrServer.deleteByQuery("*:*");

5、查詢

（1）簡單查詢

 public void queryIndex() throws Exception {
        SolrServer solrServer = new HttpSolrServer("http://localhost:8080/solr");
        SolrQuery query = new SolrQuery();
        query.setQuery("*:*");
        QueryResponse queryResponse = solrServer.query(query);
        SolrDocumentList solrDocumentList = queryResponse.getResults();
        System.out.println("總量:" + solrDocumentList.getNumFound());
        for (SolrDocument solrDocument : solrDocumentList) {
            System.out.println(solrDocument.get("id"));
            System.out.println(solrDocument.get("product_name"));
            System.out.println(solrDocument.get("product_price"));
            System.out.println(solrDocument.get("product_catalog_name"));
            System.out.println(solrDocument.get("product_picture"));
        }
    }

預設只查詢前十條資料

（2）複雜查詢

@Test
    public void queryIndex2() throws Exception {
        //建立連線
        SolrServer solrServer = new HttpSolrServer("http://localhost:8080/solr");
        //建立一個query物件
        SolrQuery query = new SolrQuery();
        //設定查詢條件
        query.setQuery("鑽石");
        //過濾條件
        query.setFilterQueries("product_catalog_name:幽默雜貨");
        //排序條件
        query.setSort("product_price", SolrQuery.ORDER.asc);
        //分頁處理
        query.setStart(0);
        query.setRows(10);
        //結果中域的列表
        query.setFields("id","product_name","product_price","product_catalog_name","product_picture");
        //設定預設搜尋域
        query.set("df", "product_keywords");
        //高亮顯示
        query.setHighlight(true);
        //高亮顯示的域
        query.addHighlightField("product_name");
        //高亮顯示的字首
        query.setHighlightSimplePre("<em>");
        //高亮顯示的字尾
        query.setHighlightSimplePost("</em>");
        //執行查詢
        QueryResponse queryResponse = solrServer.query(query);
        //取查詢結果
        SolrDocumentList solrDocumentList = queryResponse.getResults();
        //共查詢到商品數量
        System.out.println("共查詢到商品數量:" + solrDocumentList.getNumFound());
        //遍歷查詢的結果
        for (SolrDocument solrDocument : solrDocumentList) {
            System.out.println(solrDocument.get("id"));
            //取高亮顯示
            String productName = "";
            Map<String, Map<String, List<String>>> highlighting = queryResponse.getHighlighting();
            List<String> list = highlighting.get(solrDocument.get("id")).get("product_name");
            //判斷是否有高亮內容
            if (null != list) {
                productName = list.get(0);
            } else {
                productName = (String) solrDocument.get("product_name");
            }

            System.out.println(productName);
            System.out.println(solrDocument.get("product_price"));
            System.out.println(solrDocument.get("product_catalog_name"));
            System.out.println(solrDocument.get("product_picture"));

        }
    }

高亮顯示的資料與普通的資料是分開取出的