说明:
SpringDataElasticsearch 是将Spring的核心概念应用于ElasticSearch搜索引擎的开发解决方案,提供一个"模板"作为搞基抽象,用于存储,查询,排序和面向文档
github地址: https://github.com/spring-projects/spring-data-elasticsearch注: SpringDataElasticsearch使用的时候有版本要求,本示例的版本为
springboot 2.1.3.RELEASE + spring-data-elasticsearch 3.1.5 +elasticsearch 6.4.3
一. 添加依赖
修改Maven依赖,pom.xml如下
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.3.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.jetlee</groupId>
<artifactId>es</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>es</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-elasticsearch</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
二. 修改application.properties配置文件
添加如下内容
# 配置es服务器地址
spring.data.elasticsearch.cluster-nodes= 127.0.0.1:9300
# 配置es服务器集群名称
spring.data.elasticsearch.cluster-name= my-application
三. 使用示例
以article为示例,来写对es的操作
1. 编写Article的实体类
package com.jetlee.es.domain;
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;
import org.springframework.format.annotation.DateTimeFormat;
import java.util.Date;
// indexName为索引名称,type为该索引下的类型
@Document(indexName = "blog",type = "article")
public class Article {
@Id
private Long id;
//设置字段名称及索引
@Field(type = FieldType.Text,analyzer = "ik_max_word")
private String title;
@Field(type = FieldType.Text,analyzer = "ik_max_word")
private String content;
@Field(type = FieldType.Date)
private Date publishDate;
public Long getId() {
return id;
}
public void setId(Long 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;
}
public Date getPublishDate() {
return publishDate;
}
public void setPublishDate(Date publishDate) {
this.publishDate = publishDate;
}
}
2. 编写ArticleRepository文件
package com.jetlee.es.repository;
import com.jetlee.es.domain.Article;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
public interface ArticleReposotory extends ElasticsearchRepository<Article,Long> {
}
3. 编写ArticleController控制器类
package com.jetlee.es.controller;
import com.jetlee.es.domain.Article;
import com.jetlee.es.repository.ArticleReposotory;
import com.jetlee.es.utils.TimeUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import java.text.ParseException;
@RestController
public class ArticleController {
@Autowired
ArticleReposotory articleReposotory;
@GetMapping("/article/add")
public String add(@RequestParam("id") Long id, @RequestParam("title") String title, @RequestParam("content") String content, @RequestParam("publishDate") String publishDate) throws ParseException {
Article article = new Article();
article.setId(id);
article.setTitle(title);
article.setContent(content);
article.setPublishDate(TimeUtil.toDate(publishDate));
return articleReposotory.save(article).toString();
}
@GetMapping("/article/get")
public Object get(){
Iterable<Article> list = articleReposotory.findAll();
return list;
}
4. 启动服务
四.使用测试
1.添加数据
打开浏览器,访问[http://127.0.0.1:8080/article/add?id=123212&title=测试文章标题&content=测试文章内容&publishDate=2019-07-05 09:56:29](http://127.0.0.1:8080/article/add?id=123212&title=测试文章标题&content=测试文章内容&publishDate=2019-07-05 09:56:29)
或者使用postman
返回如下数据,即为插入成功
2. 查询刚刚添加上的数据
浏览器访问http://127.0.0.1:8080/article/get
或者使用postman
返回如下,读取成功