我们能用spring boot连接多个mongoDB dataSources吗？

spring:
  data:
    mongodb:
      uri: mongodb://localhost:27017/db1
      host: localhost
      port: 27017
      database: db1
  seconddatasource:
    mongodb:
      uri: mongodb://localhost:27018/db2
      host: localhost
      port: 27018
      database: db2

@Configuration
@EnableMongoRepositories(basePackages = "com.example.repository1",
        mongoTemplateRef = "primaryMongoTemplate")
public class PrimaryMongoConfig extends AbstractMongoClientConfiguration {

    @Autowired
    private Environment environment;

    @Override
    protected String getDatabaseName() {
        return environment.getProperty("spring.data.mongodb.database");
    }

    @Override
    public MongoClient mongoClient() {
        MongoClientSettings settings = MongoClientSettings.builder()
                .applyToClusterSettings(builder ->
                        builder.hosts(Arrays.asList(new ServerAddress(
                                environment.getProperty("spring.data.mongodb.host"),
                                Integer.parseInt(environment.getProperty("spring.data.mongodb.port")))
                        )))
                .build();
        return MongoClients.create(settings);
    }

    @Override
    protected boolean autoIndexCreation() {
        return true;
    }
}

@Configuration
@EnableMongoRepositories(basePackages = "com.example.repository2",
        mongoTemplateRef = "secondaryMongoTemplate")
public class SecondaryMongoConfig extends AbstractMongoClientConfiguration {

    @Autowired
    private Environment environment;

    @Override
    protected String getDatabaseName() {
        return environment.getProperty("seconddatasource.mongodb.database");
    }

    @Override
    public MongoClient mongoClient() {
        MongoClientSettings settings = MongoClientSettings.builder()
                .applyToClusterSettings(builder ->
                        builder.hosts(Arrays.asList(new ServerAddress(
                                environment.getProperty("seconddatasource.mongodb.host"),
                                Integer.parseInt(environment.getProperty("seconddatasource.mongodb.port")))
                        )))
                .build();
        return MongoClients.create(settings);
    }

    @Override
    protected boolean autoIndexCreation() {
        return true;
    }
}

@Autowired
@Qualifier("primaryMongoTemplate")
private MongoTemplate primaryMongoTemplate;

@Autowired
@Qualifier("secondaryMongoTemplate")
private MongoTemplate secondaryMongoTemplate;