我有一个从Spring MVC控制器启动的Spring-Batch作业。控制器从用户那里获取一个上传的文件，并且作业应该处理该文件：

@RequestMapping(value = "/upload")
public ModelAndView uploadInventory(UploadFile uploadFile, BindingResult bindingResult) {

    // code for saving the uploaded file to disk goes here...

    // now I want to launch the job of reading the file line by line and saving it to the database,
    // but I want to launch this job in a new thread, not in the HTTP request thread,
    // since I so not want the user to wait until the job ends.
    jobLauncher.run(
                    jobRegistry.getJob(JOB_NAME),
                    new JobParametersBuilder().addString("targetDirectory", folderPath).addString("targetFile", fileName).toJobParameters()
                    );

    return mav;
}

我尝试了以下XML配置：

<job id="writeProductsJob" xmlns="http://www.springframework.org/schema/batch">
    <step id="readWrite">
        <tasklet task-executor="taskExecutor">
            <chunk reader="productItemReader" writer="productItemWriter" commit-interval="10" />
        </tasklet>
    </step>
</job>

<bean id="taskExecutor"
    class="org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor">
    <property name="corePoolSize" value="5" />
    <property name="maxPoolSize" value="5" />
</bean>

…但是似乎多线程仅发生在作业边界本身内。即，控制器线程等待直到作业结束，并且作业执行由多个线程处理（这很好，但不是我想要的主要内容）。我想要的主要事情是作业将在一个或多个单独的线程上启动，而控制器线程将继续执行，而无需等待作业线程结束。

有没有办法用Spring-batch实现这一目标？