某些情况下,我们需要在项目中对多种任务分配不同的线程池进行执行。从而通过监控不同的线程池来控制不同的任务。为了达到这个目的,需要在项目中配置多线程池。
spring boot 提供了简单高效的线程池配置和使用方案。
配置
首先是配置线程池的bean交给spring 管理:
@Configuration public class TaskExecutePool { @Bean(name ="threadPoolA") public ThreadPoolTaskExecutormyTaskAsyncPool() { ThreadPoolTaskExecutor executor =new ThreadPoolTaskExecutor(); executor.setCorePoolSize(4); executor.setMaxPoolSize(8); executor.setQueueCapacity(100); executor.setKeepAliveSeconds(60); executor.setThreadNamePrefix("Pool-A"); executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy()); executor.initialize(); return executor; } @Bean(name ="ThreadPoolB") public ThreadPoolTaskExecutorAsyncPoolB() { ThreadPoolTaskExecutor executor =new ThreadPoolTaskExecutor(); executor.setCorePoolSize(2); executor.setMaxPoolSize(4); executor.setQueueCapacity(8); executor.setKeepAliveSeconds(60); executor.setThreadNamePrefix("Pool-B"); //当任务数量超过MaxPoolSize和QueueCapacity时使用的策略,该策略是又调用任务的线程执行 executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy()); executor.initialize(); return executor; } }