Spring boot spring引导线程本地无法与长值一起工作

我创建了一个本地线程，如下所示：

  @Bean(destroyMethod = "destroy")
  public ThreadLocalTargetSource threadLocalTargetSource() {
    ThreadLocalTargetSource result = new ThreadLocalTargetSource();
    result.setTargetBeanName("userActionLogForThread");
    return result;
  }

  @Primary
  @Bean(name = "proxiedThreadLocalTargetSource")
  public ProxyFactoryBean proxiedThreadLocalTargetSource(
      ThreadLocalTargetSource threadLocalTargetSource) {
    ProxyFactoryBean result = new ProxyFactoryBean();
    result.setTargetSource(threadLocalTargetSource);
    return result;
  }

  @Bean(name = "userActionLogForThread")
  @Scope(scopeName = "prototype")
  public UserActionLogForThread UserActionLog() {
    return new UserActionLogForThread();
  }

并计算@Aspect所用的时间

我将开始时间设置为@Before:

userActionLogForThread.setTimeTaken(System.currentTimeMillis());

然后计算@afterhrowing和@afterreturn时的时间：

userActionLogForThread.setTimeTaken(System.currentTimeMillis()-userActionLogForThread.getTimeTaken());

我的问题是

userActionLogForThread.getTimeTaken（）

有时在进入@AfterThrowing时为0。 但是，userActionLogForThread中的其他参数具有值