我正在尝试对我的申请做类似的事情。我正在使用以下版本的spring boot和cassandra：
spring data cassandra-2.0.8.release spring boot starter parent-2.0.4.release我需要动态更改cassandra的一些属性（主要是主机名），并希望它与应用程序建立新的连接。对于配置更改，我们有内部云配置更改管理，它在更改上运行良好，并监听它。这是我的课：

@Configuration
@Order(Ordered.HIGHEST_PRECEDENCE)
@RefreshScope
@EnableCassandraRepositories(basePackages = {"com.*.*.*.dao.repo"})
public class AppConfig {

    private static final Logger LOGGER = LoggerFactory.getLogger(AppConfig.class);

    @Value("${application['cassandraPort']}")
    private String cassandraPort;

    @Value("${application['cassandraEndpoint']}")
    private String cassandraEndpoint;

    @Value("${application['keyspaceName']}")
    private String keyspaceName;

    @Value("${application['cassandraConsistency']}")
    private String cassandraConsistency;

    @Value("${application['cassandraUserName']}")
    private String cassandraUserName;

    @Autowired
    private AppConfig appConfig;

    public AppConfig() {

        System.out.println("AppConfig Constructor");

    }

    public String getCassandraPort() {
        return cassandraPort;
    }

    public void setCassandraPort(String cassandraPort) {
        this.cassandraPort = cassandraPort;
    }

    public String getCassandraEndpoint() {
        return cassandraEndpoint;
    }

    public void setCassandraEndpoint(String cassandraEndpoint) {
        this.cassandraEndpoint = cassandraEndpoint;
    }

    public String getKeyspaceName() {
        return keyspaceName;
    }

    public void setKeyspaceName(String keyspaceName) {
        this.keyspaceName = keyspaceName;
    }

    public String getCassandraConsistency() {
        return cassandraConsistency;
    }

    public void setCassandraConsistency(String cassandraConsistency) {
        this.cassandraConsistency = cassandraConsistency;
    }

    public String getCassandraUserName() {
        return cassandraUserName;
    }

    public void setCassandraUserName(String cassandraUserName) {
        this.cassandraUserName = cassandraUserName;
    }

    @Bean
    // @RefreshScope
    public CassandraConverter converter() {
        return new MappingCassandraConverter(this.mappingContext());
    }

    @Bean
    // @RefreshScope
    public CassandraMappingContext mappingContext() {
        return new CassandraMappingContext();
    }

    @Bean
    //@RefreshScope
    public CassandraSessionFactoryBean session() {

        CassandraSessionFactoryBean session = new CassandraSessionFactoryBean();

        session.setCluster(this.cluster().getObject());
        session.setKeyspaceName(appConfig.getKeyspaceName());
        session.setConverter(this.converter());
        session.setSchemaAction(SchemaAction.NONE);
        return session;
    }

    @Bean
    //@RefreshScope
    public CassandraClusterFactoryBean cluster() {
        CassandraClusterFactoryBean cluster = new CassandraClusterFactoryBean();

        cluster.setContactPoints(appConfig.getCassandraEndpoint());
        cluster.setPort(Integer.valueOf(appConfig.getCassandraPort()));
        cluster.setUsername(appConfig.getCassandraUserName());
        cluster.setPassword("password");
        cluster.setQueryOptions(new QueryOptions().setConsistencyLevel(ConsistencyLevel.LOCAL_QUORUM));

        return cluster;
    }

}

但是，当我尝试将@refreshscope与该配置类一起使用时，应用程序无法启动。这是它在控制台中显示的内容：

***************************

APPLICATION FAILED TO START

***************************

Description:

Parameter 2 of constructor in org.springframework.boot.autoconfigure.data.cassandra.CassandraDataAutoConfiguration required a bean of type 'com.datastax.driver.core.Cluster' that could not be found.
    - Bean method 'cassandraCluster' not loaded because auto-configuration 'CassandraAutoConfiguration' was excluded

Action:

Consider revisiting the entries above or defining a bean of type 'com.datastax.driver.core.Cluster' in your configuration.

在cassandrabean中使用@refreshscope有什么指导原则吗？如果有人早就这么做了，你能分享一下吗？