我已经尝试了一天,大约要读50篇文章,才能在具有多个索引的Elastic Search上写文章。目前,我已经安装了Spring v5.2.3.RELEASE和Spring Boot v2.2.4.RELEASE。
我发现了几种解决方案,这些解决方案可以使用Spring的SPEL技术来使用多个索引,但是我无法使其工作。
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 {
你有什么想法吗?
我也尝试
@Document(type = "_doc", indexName = "#{configIndexBean.getIndexName()}")
@Document(type = "_doc", indexName = "#{configIndexBean.indexName}")
例外是:
EL1057E:没有在上下文中注册任何bean解析器来解析对bean'configIndexBean'的访问
我这样解决:
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,我像这样更改索引:
ConfigIndexBean.setIndexName("newindex");