我在使用Spring和MongoDB的Java項目中遇到了一些問題,下面的代碼。無法連接到MongoDB
我試圖用數據庫連接jiraConfig.properties使用jira.path和spring.data.mongodb.port,但它不工作,我找不到解決方案。我忘了什麼嗎?
public class JiraProjectBriefControllerImpl implements JiraProjectBriefController {
@Autowired
JiraProjectBriefRepository jiraProjectBriefRepository;
@Override
public void update() {
JiraController jiraController = new JiraControllerImpl();
List<ProjectBrief> projectBriefs = jiraController.getAllProjectsBrief();
jiraProjectBriefRepository.save(projectBriefs);
}
@Override
public List<ProjectBrief> getProjectsBrief() {
return jiraProjectBriefRepository.findAll();
}
@Override
public ProjectBrief findById(int id) {
return jiraProjectBriefRepository.findById(id);
}}
//第二類
@Configuration
@EnableAutoConfiguration
public interface JiraIntegrationService {
static void main(String[] args) {
SpringApplication.run(JiraIntegrationService.class, args);
JiraProjectBriefController jiraProjectBriefController = new JiraProjectBriefControllerImpl();
jiraProjectBriefController.update();
System.out.print(jiraProjectBriefController.getProjectsBrief());
}
}
//錯誤
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.boot.maven.AbstractRunMojo$LaunchRunner.run(AbstractRunMojo.java:478)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException
at pl.ie.service.JiraProjectBriefControllerImpl.update(JiraProjectBriefControllerImpl.java:23)
at pl.ie.JiraIntegrationService.main(JiraIntegrationService.java:26)
... 6 more
您可能想修復NPE在'在pl.wroc.pwr.ie.service.JiraProjectBriefControllerImpl.update(JiraProjectBriefControllerImpl.java:23)' – Mena