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;
}
}