spring-整合es
导入pom
<?xml version="1.0" encoding="UTF-8"?>
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
com.player3
es_spring
0.0.1-SNAPSHOT
es_spring
Demo project for Spring Boot
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1.8
UTF-8
UTF-8
2.3.7.RELEASE
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org.projectlombok
lombok
org.springframework.boot
spring-boot-starter-data-elasticsearch
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org.springframework.boot
spring-boot-starter
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org.springframework.boot
spring-boot-starter-test
test
org.junit.vintage
junit-vintage-engine
junit
junit
test
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org.springframework.boot
spring-boot-dependencies
${spring-boot.version}
pom
import
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org.apache.maven.plugins
maven-compiler-plugin
3.8.1
1.8
1.8
UTF-8
org.springframework.boot
spring-boot-maven-plugin
2.3.7.RELEASE
com.player3.es_spring.EsSpringApplication
repackage
repackage
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application.properties
# 应用名称
spring.application.name=es_spring
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# es 服务地址
elasticsearch.host=127.0.0.1
# es 服务端口
elasticsearch.port=9200
# 配置日志级别,开启 debug 日志
logging.level.com.atguigu.es=debug
ElasticsearchConfig
package com.player3.es_spring.config;
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import lombok.Data;
import org.apache.http.HttpHost;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestClientBuilder;
import org.elasticsearch.client.RestHighLevelClient;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.elasticsearch.config.AbstractElasticsearchConfiguration;
@ConfigurationProperties(prefix = "elasticsearch")
@Configuration
@Data
public class ElasticsearchConfig extends AbstractElasticsearchConfiguration {
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private String host ;
private Integer port ;
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//重写父类方法
@Override
public RestHighLevelClient elasticsearchClient() {
RestClientBuilder builder = RestClient.builder(new HttpHost(host, port));
RestHighLevelClient client = new RestHighLevelClient(builder);
return client;
}
}
Product实体类
package com.player3.es_spring.pojo;
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import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;
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;
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@Data
@NoArgsConstructor
@AllArgsConstructor
@ToString
@Document(indexName = "shopping", shards = 3, replicas = 1)
public class Product {
//必须有 id,这里的 id 是全局唯一的标识，等同于 es 中的"_id"
@Id
private Long id;//商品唯一标识
/**
* type : 字段数据类型
* analyzer : 分词器类型
* index : 是否索引(默认:true)
* Keyword : 短语,不进行分词
*/
@Field(type = FieldType.Text, analyzer = "ik_max_word")
private String title;//商品名称
@Field(type = FieldType.Keyword)
private String category;//分类名称
@Field(type = FieldType.Double)
private Double price;//商品价格
@Field(type = FieldType.Keyword, index = false)
private String images;//图片地址
}
es连接dao
package com.player3.es_spring.dao;
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import com.player3.es_spring.pojo.Product;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
import org.springframework.stereotype.Repository;
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@Repository//ElasticsearchRepository
public interface ProductDao extends ElasticsearchRepository {
}
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EsSpringApplicationTests
package com.player3.es_spring;
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import com.player3.es_spring.dao.ProductDao;
import com.player3.es_spring.pojo.Product;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Sort;
import org.springframework.data.elasticsearch.core.ElasticsearchRestTemplate;
import org.springframework.test.context.junit4.SpringRunner;
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import java.util.ArrayList;
import java.util.List;
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@RunWith(SpringRunner.class)
@SpringBootTest
public class EsSpringApplicationTests {
//注入 ElasticsearchRestTemplate
@Autowired
private ElasticsearchRestTemplate elasticsearchRestTemplate;
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@Autowired
private ProductDao productDao;
//创建索引并增加映射配置
@Test
public void createIndex(){
//创建索引，系统初始化会自动创建索引
System.out.println("创建索引");
}
@Test
public void deleteIndex(){
//创建索引，系统初始化会自动创建索引
boolean flg = elasticsearchRestTemplate.deleteIndex(Product.class);
System.out.println("删除索引 = " + flg);
}
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@Test
public void save(){
Product product = new Product();
product.setId(2L);
product.setTitle("华为手机");
product.setCategory("手机");
product.setPrice(2999.9);
product.setImages("http://www.baidu.com/jpg");
productDao.save(product);
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}
//修改 全量更新 覆盖
@Test
public void update(){
Product product = new Product();
product.setId(2L);
product.setTitle("小米 2 手机");
// product.setCategory("手机");
// product.setPrice(9999.0);
product.setImages("http://www.atguigu/xm.jpg");
productDao.save(product);
}
@Test
public void findById(){
Product product = productDao.findById(2L).get();
System.out.println(product);
}
@Test
public void findAll(){
Iterable products = productDao.findAll();
for (Product product : products) {
System.out.println(product);
}
}
@Test
public void delete(){
Product product = new Product();
product.setId(2L);
productDao.delete(product);
}
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@Test
public void saveAll(){
List productList = new ArrayList<>();
for (int i = 0; i < 10; i++) {
Product product = new Product();
product.setId(Long.valueOf(i));
product.setTitle("["+i+"]小米手机");
product.setCategory("手机");
product.setPrice(1999.0+i);
product.setImages("http://www.atguigu/xm.jpg");
productList.add(product);
}
productDao.saveAll(productList);
}
//分页查询
@Test
public void findByPageable(){
//设置排序(排序方式，正序还是倒序，排序的 id)
Sort sort = Sort.by(Sort.Direction.DESC,"id");
int currentPage=0;//当前页，第一页从 0 开始，1 表示第二页
int pageSize = 5;//每页显示多少条
//设置查询分页
PageRequest pageRequest = PageRequest.of(currentPage, pageSize,sort);
//分页查询
Page productPage = productDao.findAll(pageRequest);
for (Product Product : productPage.getContent()) {
System.out.println(Product);
}
}
}
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SpringDataESSearchTest
package com.player3.es_spring;
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import com.player3.es_spring.dao.ProductDao;
import com.player3.es_spring.pojo.Product;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.index.query.TermQueryBuilder;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.data.domain.PageRequest;
import org.springframework.test.context.junit4.SpringRunner;
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@RunWith(SpringRunner.class)
@SpringBootTest
public class SpringDataESSearchTest {
@Autowired
private ProductDao productDao;
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/**
* term 查询
* search(termQueryBuilder) 调用搜索方法，参数查询构建器对象
*/
@Test
public void termQuery(){
TermQueryBuilder termQueryBuilder = QueryBuilders.termQuery("title", " 小米");
Iterable products = productDao.search(termQueryBuilder);
for (Product product : products) {
System.out.println(product);
}
}
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/**
* term 查询加分页
*/
@Test
public void termQueryByPage(){
int currentPage= 0 ;
int pageSize = 5;
//设置查询分页
PageRequest pageRequest = PageRequest.of(currentPage, pageSize);
TermQueryBuilder termQueryBuilder = QueryBuilders.termQuery("title", " 小米");
Iterable products =
productDao.search(termQueryBuilder,pageRequest);
for (Product product : products) {
System.out.println(product);
}
}
}
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