使用rocketmq-client-java发不了消息

使用的是如下代码发送消息，调试时发现代码一直停留在
Producer producer = provider.newProducerBuilder().setTopics(topic).setClientConfiguration(config).build();

public void sendMessage(String topic, String messageData){
    try{
        ClientServiceProvider provider = ClientServiceProvider.loadService();
        // 配置accessKey和secretKey
        StaticSessionCredentialsProvider sscProvider = new StaticSessionCredentialsProvider(accessKey, secretKey);
        ClientConfiguration config = ClientConfiguration.newBuilder()
                .setEndpoints(endpoints)
                .setRequestTimeout(Duration.ofSeconds(requestTimeout))
                .setCredentialProvider(sscProvider)
                .enableSsl(enableSsl)
                .build();

        // 设置生产者
        Producer producer = provider.newProducerBuilder()
                .setTopics(topic)
                .setClientConfiguration(config)
                .build();

        // 设置普通消息
        Message message = provider.newMessageBuilder()
                .setTopic(topic)
                .setBody(messageData.getBytes(StandardCharsets.UTF_8))
                .build();
        // 获取发送消息的结果
        SendReceipt sendReceipt = producer.send(message);
        log.info("发送消息的结果：{}",sendReceipt.toString());
    }catch(Exception e){
        log.error("发送消息出现异常：{}",e.toString());
    }
}