SpringBoot——结合nacos实现动态刷新自定义线程池

需求

1. 实现自定义线程池
2. 实现线程池参数动态刷新

自定义动态线程池模板

自定义动态线程池代码

@Data
@Slf4j
@Configuration
@RefreshScope
@ConfigurationProperties("custom.threadpool")
public class DemoThreadPool implements InitializingBean {

    /**
     * thread name format
     */
    public static final String DEMO_THREAD_NAME = "DEMO-THREAD-%d";

    /**
     * core pool size, default: 8
     * 1、CPU-intensive: CPU-cores + 1
     * 2、IO intensive:CPU-cores/(1-blocking-factor)， blocking factor: 0.8~0.9
     */
    @Value("${corePoolSize:8}")
    private Integer corePoolSize;

    /**
     * max pool size, default: 100
     */
    @Value("${maxPoolSize:100}")
    private Integer maximumPoolSize;

    /**
     * idle thread keep alive time (unit: s), default: 60
     */
    @Value("${keepAliveTime:60}")
    private Long keepAliveTime;

    /**
     * queue capacity size, default: 16
     */
    @Value("${capacitySize:16}")
    private Integer capacitySize;
    /**
     * dynamic refresh switch, default: false
     */
    @Value("${dynamicRefreshSwitch:false}")
    private Boolean dynamicRefreshSwitch;

    /**
     * listened service's nacos dataId
     */
    @Value("${dataId:demo-service}")
    private String dataId;

    /**
     * thread pool executor
     */
    public static ThreadPoolExecutor demo