可以通过设置 taskExecutor 来使用自定义线程池，以提供更大的并发量和更灵活的线程管理。
例如：@Bean
public TaskExecutor taskExecutor() {
ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
executor.setCorePoolSize(100);
executor.setMaxPoolSize(100);
executor.setQueueCapacity(0);
executor.setThreadNamePrefix("custom-thread-");
return executor;
}
并在工厂配置中使用这个线程池：@Bean
public SimpleRabbitListenerContainerFactory myFactory(ConnectionFactory connectionFactory) {
SimpleRabbitListenerContainerFactory factory = new SimpleRabbitListenerContainerFactory();
factory.setConnectionFactory(connectionFactory);
factory.setTaskExecutor(taskExecutor());
return factory;
}