小编iso*_*yer的帖子

@Async这是Spring Boot 中正确的使用方法吗？

@Service
class someServiceImpl {
...
  public someResponseDTO getUsers(int userId) {
   // Do some logic
   ...
   // Call external API with another service method from another service impl
   anotherService.emailUserInTheBackground(userId);
   return someResponseDTO;
  }
...
}

@Service
public class AnotherService {
  @Async
  public void emailUserInTheBackground(int userId) {
    // This might take a while...
    ...
  }
}

既然emailUserInTheBackground()有@Async注释和返回类型，它会完全void阻塞该行吗？return someResponseDTO

我想要的只是将响应返回给调用者而无需等待，因为emailUserInTheBackground()完成时间太长并且不直接绑定到响应对象。