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Spring Data ElasticSearch的使用

Zzzzn 2020-03-02 16:51 原文

 一、Spring Data ElasticSearch简介

1、什么是Spring Data

　　Spring Data是一个用于简化数据库访问，并支持云服务的开源框架。其主要目标是使得对数据的访问变得方便快捷，并支持map-reduce框架和云计算数据服务。 Spring Data可以极大的简化JPA的写法，可以在几乎不用写实现的情况下，实现对数据的访问和操作。除了CRUD外，还包括如分页、排序等一些常用的功能。
　　Spring Data的官网：http://projects.spring.io/spring-data/
　　Spring Data常用的功能模块如下：
　　　　

 　　　　 

2、什么是Spring Data ElasticSearch

　　Spring Data ElasticSearch 基于 spring data API 简化 elasticSearch操作，将原始操作elasticSearch的客户端API进行封装 。Spring Data为Elasticsearch项目提供集成搜索引擎。Spring Data Elasticsearch POJO的关键功能区域为中心的模型与Elastichsearch交互文档和轻松地编写一个存储库数据访问层。
　　官方网站：http://projects.spring.io/spring-data-elasticsearch/

二、Spring Data ElasticSearch环境

1、启动ES集群

2、启动node.js

3、目录展示

　　

4、导入依赖

<dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.12</version>
    </dependency>
    <dependency>
      <groupId>org.elasticsearch</groupId>
      <artifactId>elasticsearch</artifactId>
      <version>5.6.8</version>
    </dependency>

    <dependency>
      <groupId>org.elasticsearch.client</groupId>
      <artifactId>transport</artifactId>
      <version>5.6.8</version>
    </dependency>

    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-to-slf4j</artifactId>
      <version>2.9.1</version>
    </dependency>

    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>1.7.24</version>
    </dependency>

    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-simple</artifactId>
      <version>1.7.24</version>
    </dependency>

    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>1.2.12</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-core</artifactId>
      <version>2.8.1</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>2.8.1</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-annotations</artifactId>
      <version>2.8.1</version>
    </dependency>

    <dependency>
      <groupId>org.springframework.data</groupId>
      <artifactId>spring-data-elasticsearch</artifactId>
      <version>3.0.5.RELEASE</version>
      <exclusions>
        <exclusion>
          <groupId>org.elasticsearch.plugin</groupId>
          <artifactId>transport‐netty4‐client</artifactId>
        </exclusion>
      </exclusions>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>5.0.4.RELEASE</version>
    </dependency>
  </dependencies>

5、applicationContext.xml配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:elasticsearch="http://www.springframework.org/schema/data/elasticsearch"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
       http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd 
       http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/data/elasticsearch
       http://www.springframework.org/schema/data/elasticsearch/spring-elasticsearch.xsd">

<!--扫描Dao包，自动创建实例-->
    <elasticsearch:repositories base-package="com.zn.dao"/>

    <!--扫描service包，创建service的实体-->
    <context:component-scan base-package="com.zn.service"/>

    <!--配置elasticsearch的连接-->
    <elasticsearch:transport-client id="client" cluster-nodes="127.0.0.1:9300,127.0.0.1:9301,127.0.0.1:9302" cluster-name="my-elasticsearch"/>

    <!--ElasticSearch模板对象-->
    <bean id="elasticsearchTemplate" class="org.springframework.data.elasticsearch.core.ElasticsearchTemplate">
        <constructor-arg name="client" ref="client"></constructor-arg>
    </bean>

</beans>

6、Article实体

package com.zn.entity;

import org.springframework.data.annotation.Id;
import org.springframework.data.elasticsearch.annotations.Document;
import org.springframework.data.elasticsearch.annotations.Field;
import org.springframework.data.elasticsearch.annotations.FieldType;

//@Document 文档对象 （索引信息,文档类型）
@Document(indexName = "es_test03",type = "article")
public class Article {

    @Id
    //@Id文档主键  唯一标识
    //@Field 每个文档的字段配置（类型、是否分词、是否存储、分词器 ）
    @Field(type = FieldType.Integer,store = true,index = false)
    private Integer id;
    @Field(type = FieldType.text,index = true,store = true,analyzer = "ik_max_word")
    private String title;
    @Field(type = FieldType.text,index = true,store = true,analyzer = "ik_max_word")
    private String content;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getContent() {
        return content;
    }

    public void setContent(String content) {
        this.content = content;
    }

    @Override
    public String toString() {
        return "Article{" +
                "id=" + id +
                ", title='" + title + '\'' +
                ", content='" + content + '\'' +
                '}';
    }
}

三、创建索引库

1、ArticleDao

package com.zn.dao;

import com.zn.entity.Article;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
import org.springframework.stereotype.Repository;

@Repository
public interface ArticleDao extends ElasticsearchRepository<Article,Integer> {
}

2、ArticleService

package com.zn.service;

import com.zn.entity.Article;

public interface ArticleService {

}

3、ArticleServiceImpl

package com.zn.service.impl;

import com.zn.dao.ArticleDao;
import com.zn.entity.Article;
import com.zn.service.ArticleService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class ArticleServiceImpl implements ArticleService {

    @Autowired
    private ArticleDao dao;

}

4、SpringDataESTest

package com.zn;

import com.zn.entity.Article;
import com.zn.service.ArticleService;
import org.elasticsearch.client.transport.TransportClient;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.elasticsearch.core.ElasticsearchTemplate;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:applicationContext.xml")
public class SpringDataESTest {

    @Autowired
    private ArticleService service;

    @Autowired
    private ElasticsearchTemplate template;

    /*创建索引库*/
    @Test
    public void creatIndex(){
        //创建空的索引库
        template.createIndex(Article.class);
    }

}

5、效果展示

　　

 　　

四、创建索引库并指定mappings

1、ArticleDao

package com.zn.dao;

import com.zn.entity.Article;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
import org.springframework.stereotype.Repository;

@Repository
public interface ArticleDao extends ElasticsearchRepository<Article,Integer> {
}

2、ArticleService

package com.zn.service;

import com.zn.entity.Article;

public interface ArticleService {

}

3、ArticleServiceImpl

package com.zn.service.impl;

import com.zn.dao.ArticleDao;
import com.zn.entity.Article;
import com.zn.service.ArticleService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class ArticleServiceImpl implements ArticleService {

    @Autowired
    private ArticleDao dao;

}

4、SpringDataESTest

package com.zn;

import com.zn.entity.Article;
import com.zn.service.ArticleService;
import org.elasticsearch.client.transport.TransportClient;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.elasticsearch.core.ElasticsearchTemplate;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:applicationContext.xml")
public class SpringDataESTest {

    @Autowired
    private ArticleService service;

    @Autowired
    private ElasticsearchTemplate template;

    /*创建索引库并添加mapping映射*/
    @Test
    public void creatIndexAndMapping(){
        template.createIndex(Article.class);
        template.putMapping(Article.class);
    }

}

5、效果展示

　　

 　　

五、创建文档

1、ArticleDao

package com.zn.dao;

import com.zn.entity.Article;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
import org.springframework.stereotype.Repository;

@Repository
public interface ArticleDao extends ElasticsearchRepository<Article,Integer> {
}

2、ArticleService

package com.zn.service;

import com.zn.entity.Article;

public interface ArticleService {
    //创建文档
    public void save(Article article);

}

3、ArticleServiceImpl

package com.zn.service.impl;

import com.zn.dao.ArticleDao;
import com.zn.entity.Article;
import com.zn.service.ArticleService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class ArticleServiceImpl implements ArticleService {

    @Autowired
    private ArticleDao dao;

    @Override
    public void save(Article article) {
        dao.save(article);
    }
}

4、SpringDataESTest

package com.zn;

import com.zn.entity.Article;
import com.zn.service.ArticleService;
import org.elasticsearch.client.transport.TransportClient;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.elasticsearch.core.ElasticsearchTemplate;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:applicationContext.xml")
public class SpringDataESTest {

    @Autowired
    private ArticleService service;

    @Autowired
    private ElasticsearchTemplate template;

    /*创建文档*/
    @Test
    public void saveDocument(){
        Article article=new Article();
        article.setId(1);
        article.setTitle("测试SpringData ElasticSearch");
        article.setContent("Spring Data ElasticSearch基于spring data API简化elasticSearch操作，" +
                "将原始操作elasticSearch的客户端API进行封装");
        service.save(article);
    }

}

5、效果展示

　　

六、删除文档--根据id

1、ArticleDao

package com.zn.dao;

import com.zn.entity.Article;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
import org.springframework.stereotype.Repository;

@Repository
public interface ArticleDao extends ElasticsearchRepository<Article,Integer> {
}

2、ArticleService

package com.zn.service;

import com.zn.entity.Article;

public interface ArticleService {
　　//根据文档id删除
    public void deleteById(Integer id);
}

3、ArticleServiceImpl

package com.zn.service.impl;

import com.zn.dao.ArticleDao;
import com.zn.entity.Article;
import com.zn.service.ArticleService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class ArticleServiceImpl implements ArticleService {

    @Autowired
    private ArticleDao dao;


    @Override
    public void deleteById(Integer id) {
        dao.deleteById(id);
    }

}

4、SpringDataESTest

package com.zn;

import com.zn.entity.Article;
import com.zn.service.ArticleService;
import org.elasticsearch.client.transport.TransportClient;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.elasticsearch.core.ElasticsearchTemplate;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:applicationContext.xml")
public class SpringDataESTest {

    @Autowired
    private ArticleService service;


    /*根据id删除文档*/
    @Test
    public void deleteDocumentById(){
        //根据文档ID删除
        service.deleteById(1);
    }

}

5、效果展示

　　

七、删除全部文档

1、ArticleDao

package com.zn.dao;

import com.zn.entity.Article;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
import org.springframework.stereotype.Repository;

@Repository
public interface ArticleDao extends ElasticsearchRepository<Article,Integer> {
}

2、ArticleService

package com.zn.service;

import com.zn.entity.Article;

public interface ArticleService {
    //删除全部文档
    public void deleteAll();
}

3、ArticleServiceImpl

package com.zn.service.impl;

import com.zn.dao.ArticleDao;
import com.zn.entity.Article;
import com.zn.service.ArticleService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class ArticleServiceImpl implements ArticleService {

    @Autowired
    private ArticleDao dao;

    @Override
    public void deleteAll() {
        dao.deleteAll();
    }
}

4、SpringDataESTest

package com.zn;

import com.zn.entity.Article;
import com.zn.service.ArticleService;
import org.elasticsearch.client.transport.TransportClient;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.elasticsearch.core.ElasticsearchTemplate;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:applicationContext.xml")
public class SpringDataESTest {

    @Autowired
    private ArticleService service;

    @Autowired
    private ElasticsearchTemplate template;

    /*删除全部文档*/
    @Test
    public void deleteAllDocument(){
        //全部删除
        service.deleteAll();
    }

}

5、效果展示

　　 

八、修改文档

1、ArticleDao

package com.zn.dao;

import com.zn.entity.Article;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
import org.springframework.stereotype.Repository;

@Repository
public interface ArticleDao extends ElasticsearchRepository<Article,Integer> {
}

2、ArticleService

package com.zn.service;

import com.zn.entity.Article;

public interface ArticleService {
    //修改文档
    public void save(Article article);
}

3、ArticleServiceImpl

package com.zn.service.impl;

import com.zn.dao.ArticleDao;
import com.zn.entity.Article;
import com.zn.service.ArticleService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class ArticleServiceImpl implements ArticleService {

    @Autowired
    private ArticleDao dao;

    @Override
    public void save(Article article) {
        dao.save(article);
    }
}

4、SpringDataESTest

package com.zn;

import com.zn.entity.Article;
import com.zn.service.ArticleService;
import org.elasticsearch.client.transport.TransportClient;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.elasticsearch.core.ElasticsearchTemplate;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:applicationContext.xml")
public class SpringDataESTest {

    @Autowired
    private ArticleService service;

    @Autowired
    private ElasticsearchTemplate template;

    /*修改文档，先删除再修改，调用的还是save方法*/
    @Test
    public void updateDocument(){
        Article article=new Article();
        article.setId(1);
        article.setTitle("1[修改]测试SpringData ElasticSearch");
        article.setContent("1[修改]Spring Data ElasticSearch基于spring data API简化elasticSearch操作，" +
                "将原始操作elasticSearch的客户端API进行封装");
        service.save(article);
    }
}

5、效果展示

　　

九、根据ID查询文档

1、ArticleDao

package com.zn.dao;

import com.zn.entity.Article;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
import org.springframework.stereotype.Repository;

@Repository
public interface ArticleDao extends ElasticsearchRepository<Article,Integer> {
}

2、ArticleService

package com.zn.service;

import com.zn.entity.Article;

import java.util.Optional;

public interface ArticleService {

    //根据ID查询文档
    public Optional<Article> findById(Integer id);
}

3、ArticleServiceImpl

package com.zn.service.impl;

import com.zn.dao.ArticleDao;
import com.zn.entity.Article;
import com.zn.service.ArticleService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.Optional;

@Service
public class ArticleServiceImpl implements ArticleService {

    @Autowired
    private ArticleDao dao;

    @Override
    public Optional<Article> findById(Integer id) {
        return  dao.findById(id);
    }
}

4、SpringDataESTest

package com.zn;

import com.zn.entity.Article;
import com.zn.service.ArticleService;
import org.elasticsearch.client.transport.TransportClient;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.elasticsearch.core.ElasticsearchTemplate;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import java.util.Optional;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:applicationContext.xml")
public class SpringDataESTest {

    @Autowired
    private ArticleService service;

    @Autowired
    private ElasticsearchTemplate template;

    /*根据ID查询文档*/
    @Test
    public void findById(){
        Optional<Article> optional=service.findById(2);
        Article article = optional.get();
        System.out.println(article);
    }
}

5、效果展示

　　

十、查询全部文档

1、ArticleDao

package com.zn.dao;

import com.zn.entity.Article;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
import org.springframework.stereotype.Repository;

@Repository
public interface ArticleDao extends ElasticsearchRepository<Article,Integer> {
}

2、ArticleService

package com.zn.service;

import com.zn.entity.Article;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;

import java.util.Optional;

public interface ArticleService {

    //查询全部文档
    public Iterable<Article> findAll();

}

3、ArticleServiceImpl

package com.zn.service.impl;

import com.zn.dao.ArticleDao;
import com.zn.entity.Article;
import com.zn.service.ArticleService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.stereotype.Service;

import java.util.Optional;

@Service
public class ArticleServiceImpl implements ArticleService {

    @Autowired
    private ArticleDao dao;

    @Override
    public Iterable<Article> findAll() {
        return dao.findAll();
    }

}

4、SpringDataESTest

package com.zn;

import com.zn.entity.Article;
import com.zn.service.ArticleService;
import org.elasticsearch.client.transport.TransportClient;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.elasticsearch.core.ElasticsearchTemplate;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import java.util.Optional;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:applicationContext.xml")
public class SpringDataESTest {

    @Autowired
    private ArticleService service;

    @Autowired
    private ElasticsearchTemplate template;

    /*查询全部文档*/
    @Test
    public void findAllDocument(){
        Iterable<Article> all = service.findAll();
        all.forEach(item-> System.out.println(item));
    }
}

5、效果展示

　　

十一、分页查询全部文档

1、ArticleDao

package com.zn.dao;

import com.zn.entity.Article;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
import org.springframework.stereotype.Repository;

@Repository
public interface ArticleDao extends ElasticsearchRepository<Article,Integer> {
}

2、ArticleService

package com.zn.service;

import com.zn.entity.Article;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;

import java.util.Optional;

public interface ArticleService {

    //分页查询全部文档
　　public Page<Article> findAll(Pageable pageable);
}

3、ArticleServiceImpl

package com.zn.service.impl;

import com.zn.dao.ArticleDao;
import com.zn.entity.Article;
import com.zn.service.ArticleService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.stereotype.Service;

import java.util.Optional;

@Service
public class ArticleServiceImpl implements ArticleService {

    @Autowired
    private ArticleDao dao;

    @Override
    public Page<Article> findAll(Pageable pageable) {
        return dao.findAll(pageable);
    }
}

4、SpringDataESTest

package com.zn;

import com.zn.entity.Article;
import com.zn.service.ArticleService;
import org.elasticsearch.client.transport.TransportClient;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.elasticsearch.core.ElasticsearchTemplate;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import java.util.Optional;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:applicationContext.xml")
public class SpringDataESTest {

    @Autowired
    private ArticleService service;

    @Autowired
    private ElasticsearchTemplate template;

    /*分页查询全部文档*/
    @Test
    public void findAllDocumentByPage(){
        Page<Article> all = service.findAll(PageRequest.of(0, 5));
        for (Article list:all.getContent()) {
            System.out.println(list);
        }
    }
}

5、效果展示

　　

十二、自定义规则查询--Title域

1、ArticleDao

package com.zn.dao;

import com.zn.entity.Article;
import org.springframework.data.domain.Pageable;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
import org.springframework.stereotype.Repository;

import java.util.List;

@Repository
public interface ArticleDao extends ElasticsearchRepository<Article,Integer> {
    //自定义规则
    //根据Title域中的关键词查找
    public List<Article> findByTitle(String title);
}

2、ArticleService

package com.zn.service;

import com.zn.entity.Article;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;

import java.util.List;
import java.util.Optional;

public interface ArticleService {

    //自定义规则
    //根据Title域中的关键词查找
    public List<Article> findByTitle(String title);
}

3、ArticleServiceImpl

package com.zn.service.impl;

import com.zn.dao.ArticleDao;
import com.zn.entity.Article;
import com.zn.service.ArticleService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Optional;

@Service
public class ArticleServiceImpl implements ArticleService {

    @Autowired
    private ArticleDao dao;

    @Override
    public List<Article> findByTitle(String title) {
        return dao.findByTitle(title);
    }

}

4、SpringDataESTest

package com.zn;

import com.zn.entity.Article;
import com.zn.service.ArticleService;
import org.elasticsearch.client.transport.TransportClient;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.elasticsearch.core.ElasticsearchTemplate;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import java.util.List;
import java.util.Optional;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:applicationContext.xml")
public class SpringDataESTest {

    @Autowired
    private ArticleService service;

    @Autowired
    private ElasticsearchTemplate template;

    //自定义规则
    /*根据Title域中的关键词查找*/
    @Test
    public void findByTitle(){
        List<Article> lists= service.findByTitle("修改");
        lists.stream().forEach(item-> System.out.println(item));
    }
}

5、效果展示

　　

十三、分页自定义规则查询--Title域

1、ArticleDao

package com.zn.dao;

import com.zn.entity.Article;
import org.springframework.data.domain.Pageable;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
import org.springframework.stereotype.Repository;

import java.util.List;

@Repository
public interface ArticleDao extends ElasticsearchRepository<Article,Integer> {
    //自定义规则
    //分页根据Title域中的关键词查找
    public List<Article> findByTitle(String title, Pageable pageable);
}

2、ArticleService

package com.zn.service;

import com.zn.entity.Article;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;

import java.util.List;
import java.util.Optional;

public interface ArticleService {

    //自定义规则
    //分页根据Title域中的关键词查找
    public List<Article> findByTitle(String title, Pageable pageable);
}

3、ArticleServiceImpl

package com.zn.service.impl;

import com.zn.dao.ArticleDao;
import com.zn.entity.Article;
import com.zn.service.ArticleService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Optional;

@Service
public class ArticleServiceImpl implements ArticleService {

    @Autowired
    private ArticleDao dao;

    @Override
    public List<Article> findByTitle(String title, Pageable pageable) {
        return dao.findByTitle(title,pageable);
    }
}

4、SpringDataESTest

package com.zn;

import com.zn.entity.Article;
import com.zn.service.ArticleService;
import org.elasticsearch.client.transport.TransportClient;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.elasticsearch.core.ElasticsearchTemplate;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import java.util.List;
import java.util.Optional;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:applicationContext.xml")
public class SpringDataESTest {

    @Autowired
    private ArticleService service;

    @Autowired
    private ElasticsearchTemplate template;

    //自定义规则
    /*分页根据Title域中的关键词查找*/
    @Test
    public void findByTitleAndPage(){
        List<Article> title = service.findByTitle("测试", PageRequest.of(0, 5));
        title.stream().forEach(item-> System.out.println(item));
    }
}

5、效果展示

　　

十四、根据一段内容查询--NativeSearchQuery（Elasticsearch原生查询）

1、ArticleDao

package com.zn.dao;

import com.zn.entity.Article;
import org.springframework.data.domain.Pageable;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
import org.springframework.stereotype.Repository;

import java.util.List;

@Repository
public interface ArticleDao extends ElasticsearchRepository<Article,Integer> {
}

2、ArticleService

package com.zn.service;

import com.zn.entity.Article;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;

import java.util.List;
import java.util.Optional;

public interface ArticleService {

}

3、ArticleServiceImpl

package com.zn.service.impl;

import com.zn.dao.ArticleDao;
import com.zn.entity.Article;
import com.zn.service.ArticleService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Optional;

@Service
public class ArticleServiceImpl implements ArticleService {

    @Autowired
    private ArticleDao dao;
}

4、SpringDataESTest

package com.zn;

import com.zn.entity.Article;
import com.zn.service.ArticleService;
import org.elasticsearch.client.transport.TransportClient;
import org.elasticsearch.index.query.QueryBuilders;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.elasticsearch.core.ElasticsearchTemplate;
import org.springframework.data.elasticsearch.core.query.NativeSearchQuery;
import org.springframework.data.elasticsearch.core.query.NativeSearchQueryBuilder;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import java.util.List;
import java.util.Optional;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:applicationContext.xml")
public class SpringDataESTest {

    @Autowired
    private ArticleService service;

    @Autowired
    private ElasticsearchTemplate template;

    /*根据一段内容查询--NativeSearchQuery*/
    @Test
    public void findByNativeSearchQuery(){
        //创建NativeSearchQueryBuilder对象
        NativeSearchQueryBuilder nativeSearchQueryBuilder=new NativeSearchQueryBuilder();
        //指定查询规则  （先分词再搜索）
        NativeSearchQuery build = nativeSearchQueryBuilder.withQuery(QueryBuilders.queryStringQuery("搜索测试").defaultField("title")).build();
        //使用ElasticsearchTemplate执行查询
　　　　　List<Article> articles = template.queryForList(build, Article.class);
        articles.stream().forEach(item-> System.out.println(item));

    }
}

5、效果展示

　　

十五、分页根据一段内容查询--NativeSearchQuery（Elasticsearch原生查询）

1、SpringDataESTest

package com.zn;

import com.zn.entity.Article;
import com.zn.service.ArticleService;
import org.elasticsearch.client.transport.TransportClient;
import org.elasticsearch.index.query.QueryBuilders;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.elasticsearch.core.ElasticsearchTemplate;
import org.springframework.data.elasticsearch.core.query.NativeSearchQuery;
import org.springframework.data.elasticsearch.core.query.NativeSearchQueryBuilder;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import java.util.List;
import java.util.Optional;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:applicationContext.xml")
public class SpringDataESTest {

    @Autowired
    private ArticleService service;

    @Autowired
    private ElasticsearchTemplate template;

    /*分页根据一段内容查询--NativeSearchQuery*/
    @Test
    public void findByNativeSearchQueryAndPage(){
        //创建NativeSearchQueryBuilder对象
        NativeSearchQueryBuilder nativeSearchQueryBuilder=new NativeSearchQueryBuilder();
        //指定查询规则  （先分词再搜索）
        NativeSearchQuery build = nativeSearchQueryBuilder.withQuery(QueryBuilders.queryStringQuery("搜索测试").defaultField("title"))
                .withPageable(PageRequest.of(0,5))
                .build();
        //使用ElasticsearchTemplate执行查询
        List<Article> articles = template.queryForList(build, Article.class);
        articles.stream().forEach(item-> System.out.println(item));

    }
}

2、效果展示

　　

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