Question

嗨还在学习希望有人可以填补空白

我有JSVC石英弹簧批处理系统已经运行了一年多。 Job启动程序需要连接到在系统其他部分成功运行的2个spring服务。每个服务都有许多sql存储库或服务注入其中。请记下包裹声明。用于应用程序上下文条目。

package com.mycompany.business.services.impl;
....
@Service
public class BatchProcessService {
   private final DomainSepcificRepository1 rep1;
   ...
   private final DomainSepcificRepositoryN repN;

   @Inject
   public BatchProcessService(Final final DomainSepcificRepository1 rep1,..., final DomainSepcificRepositoryN repN) {
   // injected values assigned to instance variables.
   }
   public List <...> findByCriteria(.....)(
      .....
   }
}

和

package com.mycompany.business.services.impl;
 ....
 @Service
 public class EmailNotificationServiceImpl implements EmailNotificationService {

     private UserService userService;

     private final MailMessage mailMessage;

     private final MailTransport mailTransport;

     @Inject
     public EmailNotificationServiceImpl(final UserService userService, final MailMessage mailMessage, final MailTransport mailTransport) {
        this.userService = userService;
        this.mailMessage = mailMessage;
        this.mailTransport = mailTransport;
     }
     .....
     public void notifySupportStaff(....){
          .....
    }
}

在我的应用程序上下文xml文件中，有以下行应允许我的作业启动程序查看并实例化上述服务。我认为＆＃34; base-package =＆＃34;指定要查找可以注入的@services，@ component和@repositories的包。

 <context:component-scan base-package="com.mycompany.common.batch, com.mycompany.batch, com.mycompany.business.services" >
    <context:exclude-filter type="assignable" expression="com.mycompany.common.batch.scheduler.service.MyCompanySchedulerService"/>
 </context:component-scan>

我认为@Component应该允许这个类看到服务并实现它们以及它们拥有的任何依赖（其他服务）。
由于某种原因，jsvc系统只想使用NO arg构造函数调用下面的类。而且它没有注入2项服务。
我的单元测试只有在为MOCK服务提供2参数构造函数时才能使用服务测试方法。 LLL

有关为什么批处理系统无法注入依赖项的任何想法？

package com.mycompany.batch.scheduler;
 ....
 @Inject
 private BatchProcessService batchProcessService;
 @Inject
 private EmailNotificationService emailNotificationService;
 @Component
 public class MyCompanySchedulerJobLauncher extends SchedulerJobLauncher {

 public MyCompanySchedulerJobLauncher() {
    super();
}

// @Inject
public MyCompanySchedulerJobLauncher(final BatchProcessService batchProcessService, final EmailNotificationService emailNotificationService) {
    super();
    this.batchProcessService = batchProcessService;
    this.emailNotificationService = emailNotificationService;
}

@Override
public int processJob(final JobExecutionContext context) throws JobRestartException, JobExecutionAlreadyRunningException, ParseException {
......
    if(batchProcessSerive.findByCriteria(....).size() == 0) {
        emailNotificationService.notifySupport(...)
     }
}

Answer 1

好吧，我不觉得傻。问题是，在我假设我可以/将注入依赖性的时候。应用程序上下文是私有的。一旦我使应用程序上下文受到保护并获得服务。都工作了

Spring作业启动程序无法访问服务

1 个答案: