springboot2.4.5集成ES

￡神魔★判官ぃ 2023-01-20 04:00 133阅读 0赞

springboot2.4.5对应的es版本号7.9.3

<parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.4.5</version>
            <relativePath/> 
        </parent>
    
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-dependencies</artifactId>
        <version>2.4.5</version>
      </parent>
    
    <elasticsearch.version>7.9.3</elasticsearch.version>

1.引入jar包

<dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <optional>true</optional>
            </dependency>

2.添加配置

server.port=8081
    
    # es
    spring.elasticsearch.rest.uris = 127.0.0.1:9200
    spring.elasticsearch.rest.username=''
    spring.elasticsearch.rest.password=''
    
    # 日期格式化
    spring.jackson.date-format=yyyy-MM-dd HH:mm:ss

3.构建entity

package com.example.springboot.es.entity.es;
    
    import lombok.Data;
    import org.springframework.data.annotation.Id;
    import org.springframework.data.elasticsearch.annotations.DateFormat;
    import org.springframework.data.elasticsearch.annotations.Document;
    import org.springframework.data.elasticsearch.annotations.Field;
    import org.springframework.data.elasticsearch.annotations.FieldType;
    
    import java.util.Date;
    
    /**
     * created by <a href="mailto:18045142590@163.com" > mm</a>
     */
    @Data
    @Document(indexName = "blog", useServerConfiguration = true, createIndex = false)
    public class ESBlog {
    
        @Id
        private Integer id;
    
        @Field(type = FieldType.Text, analyzer = "id_max_word")
        private String title;
        @Field(type = FieldType.Text, analyzer = "id_max_word")
        private String author;
        @Field(type = FieldType.Text, analyzer = "id_max_word")
        private String content;
        @Field(type = FieldType.Date, format = DateFormat.custom, pattern = "yyyy-MM-dd HH:mm:ss||yyyy-MM-dd||epoch_millis")
        private Date createTime;
        @Field(type = FieldType.Date, format = DateFormat.custom, pattern = "yyyy-MM-dd HH:mm:ss||yyyy-MM-dd||epoch_millis")
        private Date updateTime;
    }

4.构建repository

package com.example.springboot.es.repository.es;
    
    import com.example.springboot.es.entity.es.ESBlog;
    import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
    
    /**
     * created by <a href="mailto:18045142590@163.com" > mm</a>
     */
    public interface ESBlogRepository extends ElasticsearchRepository<ESBlog, Integer> {
    }

5.构建controller

package com.example.springboot.es.controller;
    
    import com.example.springboot.es.entity.es.ESBlog;
    import com.example.springboot.es.repository.es.ESBlogRepository;
    import lombok.AllArgsConstructor;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    /**
     * created by <a href="mailto:18045142590@163.com" > mm</a>
     */
    @RestController
    @AllArgsConstructor
    @RequestMapping("/es")
    public class ESController {
    
        private final ESBlogRepository esBlogRepository;
    
        @GetMapping("/test")
        public ESBlog test() {
            return esBlogRepository.findAll().iterator().next();
        }
    
    }

6.接口测试http://127.0.0.1:8081/es/test

![20210511112116839.png][]

[20210511112116839.png]: /images/20221021/dab8137f1cd2467086855add073e4db4.png