EL1057E:上下文中没有注册任何bean解析器来解析对bean的访问

Question

我一直在尝试使用多个索引在Elasticsearch上进行编写。目前我已经安装了Spring v.2.3.RELEASE和Spring Boot v2.2.4.RELEASE.

我发现了一些解决方案，允许使用Spring的SPEL技术使用多个索引，但我无法使其发挥作用。

我目前有这些文件：

ElasticDBDbConfig.java

package edu.unifi.disit.datamanager.config;
@Configuration
@EnableTransactionManagement
@EnableElasticsearchRepositories(basePackages = { "edu.unifi.disit.datamanager.datamodel.elasticdb"})
public class ElasticDBDbConfig {
@Value("${elasticsearch.protocol}")
private String esProtocol;
@Value("${elasticsearch.host}")
private String esHost;
@Value("${elasticsearch.port}")
private int esPort;
@Value("${elasticsearch.clustername}")
private String esClusterName;
@Bean(destroyMethod = "close")
public RestHighLevelClient elasticsearchClient() { 
return new RestHighLevelClient(RestClient.builder(new HttpHost(esHost,esPort,esProtocol)));
}
@Bean
public ElasticsearchRestTemplate elasticsearchTemplate() {
ElasticsearchRestTemplate elasticsearchTemplate = new 
ElasticsearchRestTemplate(elasticsearchClient());
elasticsearchTemplate.putMapping(KPIElasticValue.class);
return elasticsearchTemplate;
}

ConfigIndexBean.java

package edu.unifi.disit.datamanager.config;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;
import org.springframework.stereotype.Component;
@Configuration
@Component("configIndexBean")
public class ConfigIndexBean {
@Value("${elasticsearch.dummyIndex}")
private String indexName;
public String getIndexName() {
return indexName;
}
public void setIndexName(String indexName) {
this.indexName = indexName;
}
}

KPIElasticValue.java

package edu.unifi.disit.datamanager.datamodel.elasticdb;
@JsonInclude(JsonInclude.Include.NON_NULL)
@Entity
@JsonSerialize(using = KPIElasticValueSerializer.class)
@JsonDeserialize(using = KPIElasticValueDeserializer.class)
@ComponentScan(basePackages = "edu.unifi.disit.datamanager.config")
@Document(type = "_doc", indexName = "#{@configIndexBean.getIndexName()}")
public class KPIElasticValue {

你知道吗？

我也尝试

@Document(type = "_doc", indexName = "#{configIndexBean.getIndexName()}")
@Document(type = "_doc", indexName = "#{configIndexBean.indexName}")

例外情况是：

EL1057E:上下文中没有注册任何bean解析器来解析对bean"configIndexBean"的访问

Answer 1

我这样解决了：

ConfigIndexBean.java

package edu.unifi.disit.datamanager.config;
public class ConfigIndexBean {
private static String indexName = "dummy";
public static final String getIndexName() {
return indexName;
}
public static void setIndexName(String indexName) {
ConfigIndexBean.indexName = indexName;
}
}

以及KPIElasticValue.java上的注释：

@Document(type = "_doc",indexName = "# 
{T(edu.unifi.disit.datamanager.config.ConfigIndexBean).getIndexName()}")

在服务中，在调用存储库之前，我会这样更改索引：

ConfigIndexBean.setIndexName("newindex");