当DB关闭时，我的应用程序卡住了。我们的场景是，当DB关闭时，我们应该从另一个API获取数据。应用程序停止在
2023-07-26 13：00：25 [schedule-1] INFO（c.z.h.HikariDataSource：110）- HikariPool-1 - Starting...
我的房产：

spring:
    profiles: dv1
datasource:
    jdbc-url: ${odsdb.dbname}
    username: ${odsdb.userid}
    password: ${odsdb.passwd}
    driver-class-name: oracle.jdbc.OracleDriver
    test-on-borrow: true  
    hikari:
        connectionTimeout: 30000
        idleTimeout: 60000
        maxLifetime: 180000
        maximumPoolSize: 30
        poolName: ns-hirakiri-pool
        connectionTestQuery: SELECT 1
        initialization-fail-fast: false

@Bean
    @ConfigurationProperties(prefix = "datasource")
    public DataSource dataSource() {
        DataSource dataSource = null;
        try {
            dataSource = DataSourceBuilder.create().build();
        } catch (Exception e) {
            LOG.info("Unable to get DataSource:", e);
        }
        return dataSource;
    }

public Connection getOracleDbConnection() {
        Connection con = null;
        try {
            DataSource dataSource = (DataSource) AppContext.getContext().getBean(AddressConstants.DATA_SOURCE);
            con = dataSource.getConnection();
            log.info("In getOracleDbConnection Connection:"+con);
        } catch (SQLException e) {
            log.info("Failed to acquire a database connection: {}", e.getMessage());
        } catch (Exception se) {
            log.info("Exception in getOracleDbConnection", se);
        }
        return con
    }

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我们的应用程序没有启动。即使我将initialization-fail-fast设置为false，它仍然会卡住。你能提供任何帮助吗？
如何超越hikaridatasource设置，即使数据库关闭？