ElasticSearch（三）springboot整合ES

绝地灬酷狼 2021-06-11 15:14 1046阅读 0赞

[https://www.cnblogs.com/soft2018/p/10203024.html][https_www.cnblogs.com_soft2018_p_10203024.html]

**最基础的整合：**

一、maven依赖

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<parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.0.0.RELEASE</version>
            <relativePath /> 
        </parent>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
            </dependency>
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
            </dependency>
        </dependencies>

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二、配置文件application.yml

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spring:
      data:
        elasticsearch:
        ####集群名称
         cluster-name: myes
        ####地址 
         cluster-nodes: 192.168.212.xxx:9300

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三、实体类UserEntity

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@Document(indexName = "mymayikt", type = "user")
    @Data
    public class UserEntity {
        @Id
        private String id;
        private String name;
        private int sex;
        private int age;
    }

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四、dao层代码（实现CrudRepository就可以了，里面封装很多操作ES的方法）

public interface UserReposiory extends CrudRepository<UserEntity, String> {
    
    }

五、controller层

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@RestController
    public class EsController {
    
        @Autowired
        private UserReposiory userReposiory;
    
        @RequestMapping("/addUser")
        public UserEntity addUser(@RequestBody UserEntity user) {
            return userReposiory.save(user);
        }
    
        @RequestMapping("/findUser")
        public Optional<UserEntity> findUser(String id) {
            return userReposiory.findById(id);
        }
    }

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六、启动类

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@SpringBootApplication
    @EnableElasticsearchRepositories(basePackages = "com.dyh.dao")
    public class AppEs {
    
        public static void main(String[] args) {
            SpringApplication.run(AppEs.class, args);
        }
    }

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直接启动会报错：

None of the configured nodes are available:

解决方案（项目配置文件cluster-name要与ElasticSearch的配置文件属性值要相同）:

Vi /usr/local/elasticsearch-6.4.3/config/elasticsearch.yml

cluster.name: myes

也可以参考这个博客：https://www.cnblogs.com/dalaoyang/p/8990989.html

[https_www.cnblogs.com_soft2018_p_10203024.html]: https://www.cnblogs.com/soft2018/p/10203024.html
[copycode.gif]: /images/20210527/95ac8ccd8a3c4600bed3af4c56345f52.png