嗨 还在学习希望有人能填补空白
我有运行一年多的 JSVC quartz Spring 批处理系统。 Job 启动器需要连接 2 个在系统其他部分成功运行的 spring 服务。每个服务都有许多注入(inject)到其中的 sql 存储库或服务。
请注意包装声明。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,有以下行应该允许我的作业启动器查看和实例化上述服务。我认为“base-package=”指定要查找可以注入(inject)的@services、@components 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>
lll
关于为什么批处理系统无法注入(inject)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(...)
}
}
最佳答案
好吧,我不觉得自己很傻。
问题在于,在我假设我可以/将注入(inject)依赖项的时候。应用程序上下文是私有(private)的。一旦我使我的应用程序上下文受到保护并获得服务。一切正常
关于Spring作业启动器无法访问服务,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/36502209/