我有一个服务（API），它连接到Solr来获取数据并作为响应发送。到目前为止，我们在Solr上没有任何类型的安全层，所以我的API工作得很好。但事情发生了变化，所有核心都添加了安全层来进行身份验证。我在API中连接到核心时遇到了问题。以下是我的连接Java类：

@Configuration
@EnableConfigurationProperties
public class SolrConfigs {

private static final Logger LOG = LoggerFactory.getLogger(SolrConfigs.class);

@Value("${solr.core.FirstCore}")
private String coreFirstCore;

@Value("${solr.core.SecondCore}")
private String coreSecondCore;

@Value("${solr.core.ThirdCore}")
private String coreThirdCore;

@Bean
@ConfigurationProperties(prefix = "solr.client")
public SolrClient solrClient(@Value("${solr.client.baseURL}") final String solrBaseUrl) {
    LOG.info("Connecting to solr : {}", solrBaseUrl);
    final HttpSolrClient client = new HttpSolrClient(solrBaseUrl);
    return client;
}

@Bean
public MulticoreSolrClientFactory multicoreSolrClientFactory(final SolrClient solrClient) {
    final MulticoreSolrClientFactory factory = new MulticoreSolrClientFactory(solrClient, Arrays.asList(coreFirstCore, coreSecondCore, coreThirdCore));
    return factory;
}

@Bean(name = "solrFirstCoreTemplate")
public SolrTemplate solrFirstCoreTemplate(MulticoreSolrClientFactory multicoreSolrClientFactory) {
    final SolrTemplate template = new SolrTemplate(multicoreSolrClientFactory);
    template.setSolrCore(coreFirstCore);
    return template;
}

@Bean(name = "solrSecondCoreTemplate")
public SolrTemplate solrSecondCoreTemplate(final MulticoreSolrClientFactory multicoreSolrClientFactory) {
    final SolrTemplate template = new SolrTemplate(multicoreSolrClientFactory);
    template.setSolrCore(coreSecondCore);
    return template;
}

@Bean(name = "solrThirdCoreTemplate")
public SolrTemplate solrThirdCoreTemplate(final MulticoreSolrClientFactory multicoreSolrClientFactory) {
    final SolrTemplate template = new SolrTemplate(multicoreSolrClientFactory);
    template.setSolrCore(coreThirdCore);
    return template;
}

}

有没有办法把凭证传递给每个核心呢？我试过这样的方法

@Bean
@ConfigurationProperties(prefix = "solr.client")
public SolrClient solrClient(@Value("${solr.client.baseURL}") final String solrBaseUrl) {
    LOG.info("Connecting to solr : {}", solrBaseUrl);
    final HttpSolrClient client = new HttpSolrClient(solrBaseUrl);
    return client;
}

@Bean(name = "solrFirstCoreTemplate")
public SolrTemplate solrFirstCoreTemplate(SolrClient solrClient) {
    Credentials credentials = new UsernamePasswordCredentials(username, password);
    final SolrTemplate template = new SolrTemplate(new HttpSolrClientFactory(solrClient, coreFirstCore, credentials , "BASIC"));
    template.setSolrCore(coreFirstCore);
    return template;
}

@Bean(name = "solrSecondCoreTemplate")
public SolrTemplate solrSecondCoreTemplate(SolrClient solrClient) {
    Credentials credentials = new UsernamePasswordCredentials(username, password);
    final SolrTemplate template = new SolrTemplate(new HttpSolrClientFactory(solrClient, coreSecondCore, credentials , "BASIC"));
    template.setSolrCore(coreSecondCore);
    return template;
}

但没有成功。