CallableTaskletAdapter Spring 批处理

Question

CallableTaskletAdapter 是否使用与步骤本身不同的线程？

    @Bean
    public Callable<RepeatStatus> callableObject() {

        return () -> {
            System.out.println(Thread.currentThread().getName());
            System.out.println("This was executed in another thread");

            return RepeatStatus.FINISHED;
        };
    }

    @Bean
    public CallableTaskletAdapter tasklet() {
        CallableTaskletAdapter callableTaskletAdapter =new CallableTaskletAdapter();

        callableTaskletAdapter.setCallable(callableObject());

        return callableTaskletAdapter;
    }
@Bean
    public Step callableStep() {
        System.out.println(Thread.currentThread().getName());
        return this.stepBuilderFactory.get("callableStep")
                .tasklet(tasklet())
                .build();
    }

运行此代码在可调用微线程中将线程名称打印为“main”。这意味着它没有使用新线程。我错过了什么吗？

Answer 1

Does CallableTaskletAdapter use a separate thread than the step itself?

不，它不使用单独的线程。它callsCallable#call使用执行tasklet的线程。

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