import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.annotation.EnableAsync;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
import java.util.concurrent.Executor;
import java.util.concurrent.ThreadPoolExecutor;
@Configuration
@EnableAsync
public class AsyncConfig {
    @Bean(name = "threadPoolTaskExecutor")
    public Executor threadPoolTaskExecutor() {
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.setCorePoolSize(10); // 核心線程數(shù)
        executor.setMaxPoolSize(20); // 最大線程數(shù)
        executor.setQueueCapacity(500); // 隊列容量
        executor.setKeepAliveSeconds(60); // 線程空閑時間
        executor.setThreadNamePrefix("MyThreadPoolTaskExecutor-"); // 線程名前綴
        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy()); // 拒絕策略
        executor.initialize();
        return executor;
    }
}

import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Service;
@Service
public class AsyncService {
    @Async("threadPoolTaskExecutor")
    public void executeAsyncTask() {
        // 異步執(zhí)行的任務內容
    }
}