<dependency> <groupId>org.apache.solr</groupId> <artifactId>solr-solrj</artifactId> <version>7.4.0</version> </dependency>
solr單機版服務搭建:http://www.javashuo.com/article/p-ompcnpwa-mg.htmlhtml
solr集羣版服務搭建:http://www.javashuo.com/article/p-svunygwj-e.htmlnode
SolrJ是一個API,它使用Java(或任何基於JVM的語言)編寫的應用程序能夠輕鬆地與Solr交談。SolrJ隱藏了許多鏈接到Solr的細節,並容許您的應用程序經過簡單的高級方法與Solr交互。SolrJ支持大多數Solr API,而且具備高度可配置性。apache
官方API參考文檔: http://lucene.apache.org/solr/guide/7_4/using-solrj.html#using-solrjide
這裏使用Maven構建項目,請將如下內容放入pom.xml
:單元測試
<dependency> <groupId>org.apache.solr</groupId> <artifactId>solr-solrj</artifactId> <version>7.4.0</version> </dependency>
爲了方便測試,導入單元測試依賴和日誌依賴測試
<dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope> </dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-nop</artifactId>
<version>1.7.25</version>
</dependency>
SolrClient是一個抽象類,下邊有不少被實現的子類,HttpSolrClient
- 面向以查詢爲中心的工做負載,但也是一個很好的通用客戶端。直接與單個Solr節點通訊。ui
不一樣solr版本solrj 的建立方式有所不一樣url
//solr4建立方式 SolrServer solrServer = new HttpSolrServer(solrUrl);
//solr5建立方式,在url中指定core名稱:core1
HttpSolrClient solrClient = new HttpSolrClient(solrUrl);
//solr7建立方式,在url中指定core名稱:core1
HttpSolrClient solrClient = new HttpSolrClient.Builder(solrUrl).build();
例如:spa
package com.xyg.solr; import org.apache.solr.client.solrj.impl.HttpSolrClient; import org.junit.Test; /** * Author: Mr.Deng * Date: 2018/9/10 * Desc: 測試鏈接客戶端 */ public class testConnectionClient { @Test public void testConnectionClient(){ //設置solr客戶端url地址 String solrUrl = "http://node21:8080/solr/new_core"; //建立solrClient同時指定超時時間,不指定走默認配置 HttpSolrClient solrClient = new HttpSolrClient.Builder(solrUrl) .withConnectionTimeout(10000) .withSocketTimeout(60000) .build(); System.out.println(solrClient); } }
CloudSolrClient
- 面向與SolrCloud部署的通訊。使用已記錄的ZooKeeper狀態來發現並將請求路由到健康的Solr節點。3d
package com.xyg.solrCloud; import org.apache.solr.client.solrj.impl.CloudSolrClient; import org.junit.Test; /** * Author: Mr.Deng * Date: 2018/9/10 * Desc: 測試鏈接客戶端 */ public class ConnectionCloudSolrClient { @Test public void connectionCloudSolrClient(){ // 第一種方式:使用運行中的某一臺solr節點 //final String solrUrl = "http://192.168.100.21:8983/solr"; //CloudSolrClient solrClient = new CloudSolrClient.Builder().withSolrUrl(solrUrl).build(); // 第二種方式:使用zookeeper節點鏈接(推薦) final String zkHost = "node21:2181,node22:2181,node23:2181/solr"; CloudSolrClient solrClient = new CloudSolrClient.Builder().withZkHost(zkHost).build(); System.out.println(solrClient); } }
這裏測試單機版APi操做
@Test public void addIndexById() throws IOException, SolrServerException { String solrUrl = "http://node21:8080/solr/new_core"; HttpSolrClient solrClient = new HttpSolrClient.Builder(solrUrl).build(); //建立索引文檔對象 SolrInputDocument doc = new SolrInputDocument(); // 第一個參數:域的名稱,域的名稱必須是在schema.xml中定義的 // 第二個參數:域的值,注意:id的域不能少 doc.addField("id","1"); doc.addField("name","紅豆"); doc.addField("price","1.2"); //3.將文檔寫入索引庫中 solrClient.add(doc); solrClient.commit(); }
@Test public void addIndexByListId() throws Exception { String solrUrl = "http://node21:8080/solr/new_core"; HttpSolrClient solrClient = new HttpSolrClient.Builder(solrUrl).build(); //建立索引文檔對象 SolrInputDocument doc1 = new SolrInputDocument(); doc1.addField( "id", "2"); doc1.addField( "name", "綠豆"); doc1.addField( "price", 1.8 ); SolrInputDocument doc2 = new SolrInputDocument(); doc2.addField( "id", "3" ); doc2.addField( "name", "黑豆" ); doc2.addField( "price", 2.6 ); Collection<SolrInputDocument> docs = new ArrayList<SolrInputDocument>(); docs.add(doc1); docs.add(doc2); //3.將文檔寫入索引庫中 solrClient.add(docs); solrClient.commit(); }
@Test public void findIndex1() throws IOException, SolrServerException { String solrUrl = "http://node21:8080/solr/new_core"; HttpSolrClient solrClient = new HttpSolrClient.Builder(solrUrl).build(); // 建立搜索對象 SolrQuery query = new SolrQuery(); // 設置搜索條件 query.set("q","*:*"); //設置每頁顯示多少條 query.setRows(2); //發起搜索請求 QueryResponse response = solrClient.query(query); // 查詢結果 SolrDocumentList docs = response.getResults(); // 查詢結果總數 long cnt = docs.getNumFound(); System.out.println("總條數爲"+cnt+"條"); for (SolrDocument doc : docs) { System.out.println("id:"+ doc.get("id") + ",name:"+ doc.get("name") + ",price:"+ doc.get("price")); } solrClient.close(); }
@Test public void findIndex2() throws IOException, SolrServerException { String solrUrl = "http://node21:8080/solr/new_core"; HttpSolrClient solrClient = new HttpSolrClient.Builder(solrUrl).build(); //2 封裝查詢參數 Map<String, String> queryParamMap = new HashMap<String, String>(); queryParamMap.put("q", "*:*"); //3 添加到SolrParams對象,SolrParams 有一個 SolrQuery 子類,它提供了一些方法極大地簡化了查詢操做 MapSolrParams queryParams = new MapSolrParams(queryParamMap); //4 執行查詢返回QueryResponse QueryResponse response = solrClient.query(queryParams); //5 獲取doc文檔 SolrDocumentList docs = response.getResults(); // 查詢結果總數 long cnt = docs.getNumFound(); System.out.println("總條數爲" + cnt + "條"); //[6]內容遍歷 for (SolrDocument doc : docs) { System.out.println("id:" + doc.get("id") + ",name:" + doc.get("name") + ",price:" + doc.get("price")); } solrClient.close(); }
@Test public void updateIndex() throws IOException, SolrServerException { String solrUrl = "http://node21:8080/solr/new_core"; HttpSolrClient solrClient = new HttpSolrClient.Builder(solrUrl).build(); //建立索引文檔對象 SolrInputDocument doc = new SolrInputDocument(); //把紅豆價格修改成1.5 doc.addField("id","1"); doc.addField("name","紅豆"); doc.addField("price","1.5"); //3.將文檔寫入索引庫中 solrClient.add(doc); solrClient.commit(); //提交 solrClient.commit(); }
@Test public void deleteIndexById() throws IOException, SolrServerException { String solrUrl = "http://node21:8080/solr/new_core"; HttpSolrClient solrClient = new HttpSolrClient.Builder(solrUrl).build(); //全刪 //solrClient.deleteByQuery("*:*"); //模糊匹配刪除(帶有分詞效果的刪除) solrClient.deleteByQuery("name:紅"); //指定id刪除 //solrClient.deleteById("1"); solrClient.commit(); }
@Test public void deleteIndexByListId() throws IOException, SolrServerException { String solrUrl = "http://node21:8080/solr/new_core"; HttpSolrClient solrClient = new HttpSolrClient.Builder(solrUrl).build(); //經過id刪除 ArrayList<String> ids = new ArrayList<String>(); ids.add("2"); ids.add("3"); solrClient.deleteById(ids); //[3]提交 solrClient.commit(); //[4]關閉資源 solrClient.close(); }
解決方法:
在使用Tomcat部署Solr後,new_core的地址爲:http://node21:8080/solr/#/new_core,但使用SolrJ進行索引的時候,應該使用http://node21:8080/solr/new_core,即無中間的#號。
上圖報錯提示未識別索引字段
參考文檔:
https://www.w3cschool.cn/solr_doc/solr_doc-g1az2fmd.html