Question

我想在spring mvc项目中的每个特定时间运行以下方法它工作正常并打印第一个输出但它没有访问数据库，所以它不显示列表

方法

 public class ScheduleService {

@Autowired
private UserDetailService userDetailService;

public void performService() throws IOException {
    System.out.println("first output");
    List<UserDetail> list=userDetailService.getAll();
    System.out.println(list);

}

配置文件

 <!-- Spring's scheduling support -->
<task:scheduled-tasks scheduler="taskScheduler">
   <task:scheduled ref="ScheduleService" method="performService" fixed-delay="2000"/>
</task:scheduled-tasks>

<!-- The bean that does the actual work -->
<bean id="ScheduleService" class="com.ctbllc.ctb.scheduling.ScheduleService" />

<!-- Defines a ThreadPoolTaskScheduler instance with configurable pool size. -->
<task:scheduler id="taskScheduler" pool-size="1"/>

Answer 1

尝试这个（并从xml文件中删除bean定义）：

@Component
public class ScheduleService {

    @Autowired
    private UserDetailService userDetailService;

    @Scheduled(fixedDelay = 2000L) // in msec
    public void performService() throws IOException {
        System.out.println("first output");
        List<UserDetail> list=userDetailService.getAll();
        System.out.println(list);

    }

}

Answer 2

为该特定服务编写集成测试，并查看服务方法调用是否返回任何内容。手动测试总会导致这些问题。如有必要，请从测试和调试开始。

使用spring mvc安排任务

2 个答案: