@Transaction,@Async在同一个类中注解失效的原因分析及解决

@Service
public class TestAsyncService {
  public void testAsync() throws Exception {
    test();
  }
  @Async
  public void test() throws InterruptedException{
    Thread.sleep(10000);//让线程休眠，根据输出结果判断主线程和从线程是同步还是异步
    System.out.println("异步threadId:"+Thread.currentThread().getId());
  }
}

@Service  
class A{  
    @Async
    method b(){...}  
    method a(){    //标记1  
        b();  
    }  
}  
//Spring扫描注解后，创建了另外一个代理类，并为有注解的方法加上异步效果  
class proxy$A{  
    A objectA = new A();  
    method b(){    //标记2  
        //异步执行Async  
        objectA.b();  
    }  
    method a(){    //标记3  
        objectA.a();    //由于a()没有注解，所以不会异步执行，而是直接调用A的实例的a()方法  
    }  
}  

@Configuration
public class ThreadConfiguration implements AsyncConfigurer {
    private Logger logger = LoggerFactory.getLogger(this.getClass());
    private final ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
    @Bean
    public Executor getAsyncExecutor() {
        executor.setThreadNamePrefix("Zy-TaskExecutor-");
        executor.setCorePoolSize(50);// 核心线程池大小
        executor.setMaxPoolSize(200);// 最大可创建的线程数
        executor.setQueueCapacity(1000);// 队列最大长度
        executor.setKeepAliveSeconds(300);// 线程池维护线程所允许的空闲时间
        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
        executor.initialize();
        logger.info("任务线程池初始化...");
        return executor;
    }
    /**
     * 只有在方法上添加@Async的出现异常才会跳到此方法中
     * */
    @Override
    public AsyncUncaughtExceptionHandler getAsyncUncaughtExceptionHandler() {
        logger.error("线程执行出现异常....");
        return (e, method, arguments) -> logger.error("exception method : " + method.getName() + " message:" + e.getMessage(), e);
    }
    /**
     * 线程监控类,访问/monitor
     * */
    @Bean
    public ServletRegistrationBean threadPoolMonitorServlet() {
        ServletRegistrationBean registration = new ServletRegistrationBean(new HttpServlet() {
            @Override
            protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
                resp.setContentType(MediaType.APPLICATION_JSON_UTF8_VALUE);
                PrintWriter writer = resp.getWriter();
                writer.print("corePoolSize : " + executor.getCorePoolSize());
                writer.flush();
                writer.close();
            }
        });
        registration.addUrlMappings("/monitor/*");
        logger.info("springboot线程监控start!");
        return registration;
    }
}

@Bean
    public ThreadPoolTaskExecutor threadPoolTaskExecutor(){
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.setMaxPoolSize(200);
        executor.setQueueCapacity(1000);
        executor.setCorePoolSize(50);
        executor.setKeepAliveSeconds(300);
        executor.setThreadNamePrefix("Zy-TaskExecutor-");
        // 线程池对拒绝任务(无线程可用)的处理策略
        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
        executor.initialize();
        log.info("任务线程池初始化...");
        return executor;
    }