title: Spring-batch and file upload
body: <p>I'm trying to invoke spring batch job with resource from uploaded file. I've prepared from when I upload file with data to load.</p>
  
  <p>Here's my action:</p>
  
  <pre><code>@RequestMapping(value = "/import-users", method = RequestMethod.POST)
  public String importUsers(@ModelAttribute("uploadForm") FileUploadForm uploadForm,
          Model map) {
  
      List&lt;MultipartFile&gt; files = uploadForm.getFiles();
  
      if (null != files &amp;&amp; files.size() &gt; 0) {
          for (MultipartFile multipartFile : files) {
              String fileName = multipartFile.getOriginalFilename();
  
              try {
                  JobParametersBuilder builder = new JobParametersBuilder();
                  builder.addString("input.file.name", fileName);
  
  
                  jobLauncher.run(clientJob, builder.toJobParameters());
              } catch (JobExecutionAlreadyRunningException e) {
                  e.printStackTrace();
              } catch (JobRestartException e) {
                  e.printStackTrace();
              } catch (JobInstanceAlreadyCompleteException e) {
                  e.printStackTrace();
              } catch (JobParametersInvalidException e) {
                  e.printStackTrace();
              }
          }
      }
  
      return "administration";
  }
  </code></pre>
  
  <p>This code isn't working because "resource" property search for file in the classpath.</p>
  
  <p>My reader is defined like that:</p>
  
  <pre><code>&lt;bean id="cvsFileItemReader" class="org.springframework.batch.item.file.FlatFileItemReader"
      scope="step"&gt;
      &lt;!-- Read a csv file --&gt;
      &lt;property name="resource" value="file:#{jobParameters['input.file.name']}" /&gt;
  
      &lt;property name="lineMapper"&gt;
          ...
      &lt;/property&gt;
  
  &lt;/bean&gt;
  </code></pre>
  
  <p>Any clues?</p>
  
  <hr>
  
  <p>UPDATE 1</p>
  
  <pre><code>    INFO: Server startup in 12274 ms
  ERROR: org.springframework.batch.core.step.AbstractStep - Encountered an error executing the step
  org.springframework.batch.item.ItemStreamException: Failed to initialize the reader
      at org.springframework.batch.item.support.AbstractItemCountingItemStreamItemReader.open(AbstractItemCountingItemStreamItemReader.java:142)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:606)
      at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
      at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
      at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
      at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:132)
      at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:120)
      at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
      at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
      at com.sun.proxy.$Proxy23.open(Unknown Source)
      at org.springframework.batch.item.support.CompositeItemStream.open(CompositeItemStream.java:96)
      at org.springframework.batch.core.step.tasklet.TaskletStep.open(TaskletStep.java:306)
      at org.springframework.batch.core.step.AbstractStep.execute(AbstractStep.java:192)
      at org.springframework.batch.core.job.SimpleStepHandler.handleStep(SimpleStepHandler.java:137)
      at org.springframework.batch.core.job.flow.JobFlowExecutor.executeStep(JobFlowExecutor.java:64)
      at org.springframework.batch.core.job.flow.support.state.StepState.handle(StepState.java:60)
      at org.springframework.batch.core.job.flow.support.SimpleFlow.resume(SimpleFlow.java:152)
      at org.springframework.batch.core.job.flow.support.SimpleFlow.start(SimpleFlow.java:131)
      at org.springframework.batch.core.job.flow.FlowJob.doExecute(FlowJob.java:135)
      at org.springframework.batch.core.job.AbstractJob.execute(AbstractJob.java:301)
      at org.springframework.batch.core.launch.support.SimpleJobLauncher$1.run(SimpleJobLauncher.java:134)
      at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:49)
      at org.springframework.batch.core.launch.support.SimpleJobLauncher.run(SimpleJobLauncher.java:127)
      at com.talent_factory.service.ClientService.loadFromFile(ClientService.java:293)
      at com.talent_factory.controller.AdministrationController.importUsers(AdministrationController.java:43)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:606)
      at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)
      at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
      at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
      at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)
      at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)
      at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
      at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)
      at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
      at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)
      at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
      at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
      at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:311)
      at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:116)
      at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
      at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
      at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
      at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
      at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:101)
      at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
      at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
      at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
      at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)
      at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
      at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
      at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
      at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150)
      at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
      at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:182)
      at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
      at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105)
      at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
      at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
      at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
      at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:173)
      at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
      at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
      at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
      at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
      at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
      at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
      at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
      at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
      at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
      at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
      at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
      at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
      at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)
      at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
      at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
      at java.lang.Thread.run(Thread.java:724)
  Caused by: java.lang.IllegalStateException: Input resource must exist (reader is in 'strict' mode): URL [file:chrome_100_percent.pak]
      at org.springframework.batch.item.file.FlatFileItemReader.doOpen(FlatFileItemReader.java:251)
      at org.springframework.batch.item.support.AbstractItemCountingItemStreamItemReader.open(AbstractItemCountingItemStreamItemReader.java:139)
      ... 91 more
  </code></pre>