第一种 (详细代码可见检修计划断面文件多天生成方法) 步骤一： 在Application启动类 配置线程池的Bean 在启动类上添加 启用异步注解 @EnableAsync @Bean(name = "sectionalFileServiceExecutors") public Executor sectionalFileServiceExecutors() { int corePoolSize = 32; int maximumPoolSize = 64; long keepAliveTime = 30; TimeUnit unit = TimeUnit.SECONDS; BlockingQueue<Runnable> workQueue = new LinkedBlockingQueue<>(200); // 自定义线程 名称 便于查看调试 ThreadFactory threadFactory = new ThreadFactory() { private final AtomicInteger threadNumber = new AtomicInteger(1); @Override public Thread newThread(Runnable r) { Thread thread = new Thread(r, "sectional-file-pool-" + threadNumber.getAndIncrement()); thread.setDaemon(false); return thread; } }; RejectedExecutionHandler handler = new ThreadPoolExecutor.CallerRunsPolicy(); ThreadPoolExecutor threadPoolExecutor = new ThreadPoolExecutor( corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, threadFactory, handler ); return threadPoolExecutor; } /** * 泛型实体类深拷贝 工具方法 * * @param object * @return: T * @Author: zhangKangLe * @Date: 2024/10/21 14:13 */ public static <T> T deepCopy(T object) { try { ByteArrayOutputStream bos = new ByteArrayOutputStream(); ObjectOutputStream oos = new ObjectOutputStream(bos); oos.writeObject(object); ByteArrayInputStream bis = new ByteArrayInputStream(bos.toByteArray()); ObjectInputStream ois = new ObjectInputStream(bis); return (T) ois.readObject(); } catch (IOException | ClassNotFoundException e) { throw new RuntimeException("Deep copy failed", e); } } 步骤二： 控制层 ( execute 方法启动是没有返回值的) // 依赖注入 @Autowired Executor asyncServiceExecutor; @PostMapping("/***********************") public Result generateTypicalSection_Executor(@RequestBody SectionalFileBO sectionalFileBO) { String startTime = sectionalFileBO.getStartTime(); String endTime = sectionalFileBO.getEndTime(); List<String> dateList = generateDateRange(startTime, endTime, "yyyy-MM-dd"); for (String dataDate : dateList) { asyncServiceExecutor.execute(() -> { SectionalFileBO itemEntity = deepCopy(sectionalFileBO); itemEntity.setDataDate(dataDate); sectionFileGenerationService.generateTypicalSection_Executor(itemEntity); }); } return Result.success("典型断面生成 成功"); } 步骤三：配置 ThreadPoolExecutorConfig 类 @Configuration @EnableAsync @Slf4j public class ThreadPoolExecutorConfig { /** * 核心线程数(默认线程数) */ private int corePoolSize = 32; /** * 最大线程数 */ private int maxPoolSize = 64; /** * 允许线程空闲时间（单位：默认为秒） */ private static final int keepAliveTime = 60; /** * 缓冲队列大小 */ private int queueCapacity = 200; @Bean("asyncServiceTaskExecutor") public Executor asyncServiceTaskExecutor() { log.info("start asyncServiceExecutor"); ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor(); //配置核心线程数 executor.setCorePoolSize(corePoolSize); //配置最大线程数 executor.setMaxPoolSize(maxPoolSize); //配置空闲时间 executor.setKeepAliveSeconds(keepAliveTime); //配置队列大小 executor.setQueueCapacity(queueCapacity); //配置线程前缀名 executor.setThreadNamePrefix("async-service-"); // rejection-policy：当pool已经达到max size的时候，如何处理新任务 // CALLER_RUNS：不在新线程中执行任务，而是有调