当我们创建SpringBatchConfig时，如何覆盖getJobExplorer()

Question

我已经从BatchConfigurer扩展了我的SpringBatchConfig，一切都很顺利，但当涉及到getJobExplorer时，它在调用它时返回NullPointerException：

@Override
@Bean
public JobExplorer getJobExplorer() throws Exception {
return jobExplorer;
}

Answer 1

我做了类似的事情，并使用

public JobExplorer getJobExplorer() throws Exception {
JobExplorerFactoryBean jobExplorerFactoryBean = new JobExplorerFactoryBean();
jobExplorerFactoryBean.setDataSource(dataSource);
jobExplorerFactoryBean.afterPropertiesSet();
return jobExplorerFactoryBean.getObject();
}