springboot整合自定义线程池

在Spring Boot中整合自定义线程池需要以下步骤：

1. 创建自定义线程池的类，继承ThreadPoolExecutor类，并实现构造方法和其它必要的方法。

public class CustomThreadPool extends ThreadPoolExecutor {

    public CustomThreadPool(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue) {
        super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue);
    }

    @Override
    protected void beforeExecute(Thread t, Runnable r) {
        super.beforeExecute(t, r);
    }

    @Override
    protected void afterExecute(Runnable r, Throwable t) {
        super.afterExecute(r, t);
    }

    @Override
    protected void terminated() {
        super.terminated();
    }
}

2. 在Spring Boot的配置文件application.properties中定义线程池的属性。

threadPool.corePoolSize=5
threadPool.maximumPoolSize=10
threadPool.keepAliveTime=60
threadPool.queueCapacity=100

3. 创建线程池的Bean，使用@Value注解获取配置文件中定义的属性，初始化自定义线程池并返回。

@Configuration
public class ThreadPoolConfig {

    @Value("${threadPool.corePoolSize}")
    private int corePoolSize;

    @Value("${threadPool.maximumPoolSize}")
    private int maximumPoolSize;

    @Value("${threadPool.keepAliveTime}")
    private long keepAliveTime;

    @Value("${threadPool.queueCapacity}")
    private int queueCapacity;

    @Bean
    public ExecutorService threadPoolTaskExecutor() {
        CustomThreadPool threadPool = new CustomThreadPool(corePoolSize, maximumPoolSize, keepAliveTime, TimeUnit.SECONDS, new LinkedBlockingQueue<>(queueCapacity));
        return threadPool;
    }
}

4. 在需要使用线程池的地方注入该Bean，即可使用自定义线程池。

@Service
public class MyService {

    @Autowired
    private ExecutorService threadPool;

    public void doTask() {
        threadPool.execute(() -> {
            // 执行任务
        });
    }
}

这样，我们就可以在Spring Boot中成功整合自定义线程池了。