大多涉及到數據的處理,無非CURD四種操做,對於搜索SOLR而言,基本操做也能夠說就這麼幾種,在實際應用中,搜索條件的多樣性纔是重點,咱們在進入複雜的搜索以前,先來看一下如何新增和修改文檔java
solr的基礎環境須要準備好,若是對這一塊有疑問的童鞋,能夠參考下上一篇博文: 《190510-SpringBoot高級篇搜索之Solr環境搭建與簡單測試》git
在pom文件中,設置好對應的依賴github
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.4.RELEASE</version>
<relativePath/> <!-- lookup parent from update -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<spring-cloud.version>Finchley.RELEASE</spring-cloud.version>
<java.version>1.8</java.version>
</properties>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</pluginManagement>
</build>
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-solr</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
</dependencies>
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由於咱們採用默認的solr訪問姿式,因此配置文件中能夠不加對應的參數,固然也能夠加上spring
打開 application.yml
配置文件apache
spring:
data:
solr:
host: http://127.0.0.1:8983/solr
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若是咱們的solr加上了用戶名密碼訪問條件,參數中並無地方設置username和password,那應該怎麼辦?api
spring:
data:
solr:
host: http://admin:admin@127.0.0.1:8983/solr
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如上寫法,將用戶名和密碼寫入http的鏈接中app
咱們主要使用SolrTemplate來和Solr打交到,所以咱們須要先註冊這個bean,能夠怎麼辦?maven
package com.git.hui.boot.solr.config;
import org.apache.solr.client.solrj.SolrClient;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.solr.core.SolrTemplate;
/** * Created by @author yihui in 19:49 19/5/10. */
@Configuration
public class SearchAutoConfig {
@Bean
@ConditionalOnMissingBean(SolrTemplate.class)
public SolrTemplate solrTemplate(SolrClient solrClient) {
return new SolrTemplate(solrClient);
}
}
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上面的配置是條件注入,只有當SolrTemplate對應的bean沒有被自動加載時,纔會加載,爲何要怎麼幹?spring-boot
(能夠想想緣由...)學習
咱們的操做主要依賴的是SolrTemplate,所以有必要在開始以前,看一下它的簽名
Spring的源碼中,能夠發現大多xxxTemplate
都會實現一個xxxOperations
接口,而這個接口就是用來定義CURD的api,好比咱們看下 SolrOperations
中與修改相關的api
default UpdateResponse saveBean(String collection, Object obj) {
return saveBean(collection, obj, Duration.ZERO);
}
/** * Execute add operation against solr, which will do either insert or update with support for commitWithin strategy. * * @param collection must not be {@literal null}. * @param obj must not be {@literal null}. * @param commitWithin max time within server performs commit. * @return {@link UpdateResponse} containing update result. */
UpdateResponse saveBean(String collection, Object obj, Duration commitWithin);
default UpdateResponse saveBeans(String collection, Collection<?> beans) {
return saveBeans(collection, beans, Duration.ZERO);
}
UpdateResponse saveBeans(String collection, Collection<?> beans, Duration commitWithin);
default UpdateResponse saveDocument(String collection, SolrInputDocument document) {
return saveDocument(collection, document, Duration.ZERO);
}
/** * Add a solrj input document to solr, which will do either insert or update with support for commitWithin strategy * * @param document must not be {@literal null}. * @param commitWithin must not be {@literal null}. * @return {@link UpdateResponse} containing update result. * @since 3.0 */
UpdateResponse saveDocument(String collection, SolrInputDocument document, Duration commitWithin);
default UpdateResponse saveDocuments(String collection, Collection<SolrInputDocument> documents) {
return saveDocuments(collection, documents, Duration.ZERO);
}
UpdateResponse saveDocuments(String collection, Collection<SolrInputDocument> documents, Duration commitWithin);
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上面的api簽名中,比較明確的說明了這個 saveXXX
既能夠用來新增文檔,也能夠用來修改文檔,主要有提供了兩類
從上面的api簽名上看,saveDocument
應該是相對原始的操做方式了,所以咱們先看下它的使用姿式
首先就是建立文檔 SolrInputDocument
對象,經過調用addField
來設置成員值
public void testAddByDoc() {
SolrInputDocument document = new SolrInputDocument();
document.addField("id", 3);
document.addField("title", "testAddByDoc!");
document.addField("content", "經過solrTemplate新增文檔");
document.addField("type", 2);
document.addField("create_at", System.currentTimeMillis() / 1000);
document.addField("publish_at", System.currentTimeMillis() / 1000);
UpdateResponse response = solrTemplate.saveDocument("yhh", document);
solrTemplate.commit("yhh");
System.out.println("over:" + response);
}
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注意:保存文檔以後,必定得調用commit提交
前面須要建立SolrInputDocument
對象,咱們更但願的使用case是直接傳入一個POJO,而後自動與solr的filed進行關聯
所以一種使用方式能夠以下
@Data
public static class DocDO {
@Field("id")
private Integer id;
@Field("title")
private String title;
@Field("content")
private String content;
@Field("type")
private Integer type;
@Field("create_at")
private Long createAt;
@Field("publish_at")
private Long publishAt;
}
/** * 新增 */
private void testAddByBean() {
DocDO docDO = new DocDO();
docDO.setId(4);
docDO.setTitle("addByBean");
docDO.setContent("新增一個測試文檔");
docDO.setType(1);
docDO.setCreateAt(System.currentTimeMillis() / 1000);
docDO.setPublishAt(System.currentTimeMillis() / 1000);
UpdateResponse response = solrTemplate.saveBean("yhh", docDO);
solrTemplate.commit("yhh");
System.out.println(response);
}
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批量的方式就比較簡單了,傳入集合便可
private void testBatchAddByBean() {
DocDO docDO = new DocDO();
docDO.setId(5);
docDO.setTitle("addBatchByBean - 1");
docDO.setContent("新增一個測試文檔");
docDO.setType(1);
docDO.setCreateAt(System.currentTimeMillis() / 1000);
docDO.setPublishAt(System.currentTimeMillis() / 1000);
DocDO docDO2 = new DocDO();
docDO2.setId(6);
docDO2.setTitle("addBatchByBean - 2");
docDO2.setContent("新增一個測試文檔");
docDO2.setType(1);
docDO2.setCreateAt(System.currentTimeMillis() / 1000);
docDO2.setPublishAt(System.currentTimeMillis() / 1000);
UpdateResponse response = solrTemplate.saveBeans("yhh", Arrays.asList(docDO, docDO2));
solrTemplate.commit("yhh");
System.out.println(response);
}
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上面的幾個方法,咱們執行以後,咱們看下是否能查詢到新增長的數據
在看前面的接口簽名時,就知道修改和新增用的是相同的api,因此修改文檔和上面的使用實際上也沒有什麼特別的,下面簡單的演示一下
public void testUpdateDoc() {
DocDO docDO = new DocDO();
docDO.setId(5);
docDO.setTitle("修改以後!!!");
docDO.setType(1);
docDO.setCreateAt(System.currentTimeMillis() / 1000);
docDO.setPublishAt(System.currentTimeMillis() / 1000);
UpdateResponse response = solrTemplate.saveBean("yhh", docDO);
solrTemplate.commit("yhh");
System.out.println(response);
}
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上面的實例中,修改了id爲5的文檔標題,並刪除了content內容,執行完畢以後,結果如何呢?
到這裏就有個疑問了,對於調用而言,怎麼保證是修改仍是新增呢?
盡信書則不如,以上內容,純屬一家之言,因我的能力有限,不免有疏漏和錯誤之處,如發現bug或者有更好的建議,歡迎批評指正,不吝感激
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