使用 elasticSearch 和 Spring Boot 创建 bean 时出错

Posted 2023-02-26

【中文标题】使用 elasticSearch 和 Spring Boot 创建 bean 时出错

【英文标题】：Error creating bean with elasticSearch and SpringBoot

【发布时间】：2020-11-19 03:37:55

【问题描述】：

我想将我的项目连接到弹性搜索。我收到以下错误：

com.example.demo.elasticsearch.controller.Controller 中的字段存储库需要一个无法找到的“com.example.demo.elasticsearch.repository.CustomerRepository”类型的 bean。

注入点有以下注解： - @org.springframework.beans.factory.annotation.Autowired(required=true)

行动：

Consider defining a bean of type 'com.example.demo.elasticsearch.repository.CustomerRepository' in your configuration.

2020-07-29 15:43:44.525  WARN 14432 --- [           main] o.s.boot.SpringApplication               : Unable to close ApplicationContext

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'springApplicationAdminRegistrar' defined in class path resource [org/springframework/boot/autoconfigure/admin/SpringApplicationAdminJmxAutoConfiguration.class]: Unsatisfied dependency expressed through method 'springApplicationAdminRegistrar' parameter 1; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.springframework.core.env.Environment' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: 
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:798) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]

所以我构建了一些类，如下所示：

Controller.java

package com.example.demo.elasticsearch.controller;

import com.example.demo.elasticsearch.model.Customer;
import com.example.demo.elasticsearch.repository.CustomerRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;

import java.util.List;

@org.springframework.stereotype.Controller
public class Controller 

    @Autowired
    private CustomerRepository repository;

    @PostMapping("/saveCustomer")
    public int saveCustomer(@RequestBody List<Customer> customers) 
        repository.saveAll(customers);
        return customers.size();
    

    @GetMapping("/findAll")
    public Iterable<Customer> findAllCustomers() 
        return repository.findAll();
    

    @GetMapping("/findByFName/firstName")
    public List<Customer> findByFirstName(@PathVariable String firstName) 
        return repository.findByFirstname(firstName);
    

客户.java

package com.example.demo.elasticsearch.model;


import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.springframework.data.annotation.Id;
import org.springframework.data.elasticsearch.annotations.Document;

@Document(indexName = "javatechie", type = "customer", shards = 2)
@Data
@AllArgsConstructor
@NoArgsConstructor

public class Customer 

    @Id
    private String id;
    private String firstname;
    private String lastname;
    private int age;

CustomerRepository.java

package com.example.demo.elasticsearch.repository;


import com.example.demo.elasticsearch.model.Customer;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
import org.springframework.stereotype.Repository;

import java.util.List;

@Repository

public interface CustomerRepository extends ElasticsearchRepository<Customer, String> 

    List<Customer> findByFirstname(String firstName);

构建.gradle

// https://mvnrepository.com/artifact/org.springframework.data/spring-data-elasticsearch
    compile group: 'org.springframework.data', name: 'spring-data-elasticsearch', version: '1.0.0.RELEASE'

 dependencies 
        classpath "org.elasticsearch.gradle:build-tools:6.5.4"
    

【问题讨论】：

您好，该错误与您尝试在 SpringApplicationAdminJmxAutoConfiguration.class 中自动装配的“springApplicationAdminRegistrar”有关，您能告诉我 SpringApplicationAdminJmxAutoConfiguration.class 和与 springApplicationAdminRegistrar 相关的类吗？

我不知道这门课是干什么用的。我根本不使用它，也许这是来自编译器的？？

尝试使用“springApplicationAdminRegistrar”查找你在哪里

查看更新帖

尝试在SpringApplicationAdminMXBeanRegistrar类中添加@Component注解

【参考方案1】：

你有没有像下面这样的 bean 创建配置类

@Configuration
@EnableElasticsearchRepositories(basePackages = "com.example.demo.elasticsearch.repository")
public class Config 
 
    @Bean
    public RestHighLevelClient client() 
        ClientConfiguration clientConfiguration 
            = ClientConfiguration.builder()
                .connectedTo("localhost:9200")
                .build();
 
        return RestClients.create(clientConfiguration).rest();
    
 
    @Bean
    public ElasticsearchOperations elasticsearchTemplate() 
        return new ElasticsearchRestTemplate(client());
    

如果没有，请尝试这样。 并检查您正在使用的 spring-data-elasticsearch 的版本（我认为 1.0.0.RELEASE 太旧了）

【讨论】：

根据 maven.org 于 2014 年发布

我有另一个错误，如果我使用 repository.saveAll(customers) 来存储数据，我会收到以下错误：Elasticsearch exception [type=illegal_argument_exception, 知道为什么吗？

您能否提供该异常的完整日志@Catalina

Servlet.service() for servlet [dispatcherServlet] 在路径 [] 的上下文中抛出异常 [请求处理失败；嵌套异常是 org.springframework.data.elasticsearch.UncategorizedElasticsearchException: Elasticsearch 异常 [type=action_request_validation_exception, reason=Validation Failed: 1: type is missing;];嵌套异常是 ElasticsearchStatusException[Elasticsearch 异常 [type=action_request_validation_exception, reason=Validation Failed: 1: type is missing;]]] 的根本原因

见***.com/questions/63175882/…