无法在运行时使用弹簧批处理通过作业参数传递参数

Question

代码 sn-p：

ApplicationContext context = new ClassPathXmlApplicationContext(springConfig);

          JobLauncher jobLauncher = context.getBean("jobLauncher", JobLauncher.class);
          Job job = context.getBean("dadsdeviceJob",Job.class)         

          JobParameters jobParameters =
              new JobParametersBuilder().addString("input.file.name", "cvs/input/fxe_dadsDevice.dat").toJobParameters();

                       try {

                 JobExecution execution = jobLauncher.run(job, jobParameters);

xml sn-p:

<bean id="dadsdeviceItemReader"  scope="step" class="org.springframework.batch.item.file.FlatFileItemReader">             
<property name="resource" value="classpath:#{jobParameters['input.file.name']}"/>
              <property name="lineMapper" ref="dadsdeviceLineMapper" />
              <property name="strict" value="false" />
       </bean>

错误：输入资源不存在类路径资源#{jobParameters['input.file.name']}。

有人可以尝试解决吗

Answer 1

我没有看到其他配置细节，但你可以这样做

 JobLauncher jobLauncher = context.getBean("jobLauncher", JobLauncher.class);
     Job job = context.getBean("dadsdeviceJob",Job.class)       
    // get your bean and inject your resources like this before 
      FlatFileItemReader reader = (FlatFileItemReader) context.getBean("dadsdeviceItemReader");
       //       
     reader.setResource(new ClassPathResource(path));
     // or you can give FSR path also like this     
     reader.setResource(new FileSystemResource(path));