解决报错 ：A component required a bean of type ‘gentle.test.Show‘ that could not be found

A component required a bean of type 'gentle.test.Show' that could not be found.

PS：还有2种原因

1) 要求 service 和 controller 需要在同一个包下 。

2）有可能没有引入依赖的服务bean。（ 此条来自评论中好心网友的分享。）

package gentle.test;

import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.Date;

/**
 * @author silence
 * @date 2018/7/17 11:37
 */
public class Show implements Job {


    private static Logger _log = LoggerFactory.getLogger(Show.class);

    @Override
    public void execute(JobExecutionContext arg0) throws JobExecutionException {

        _log.info("\n\n-------------------------------\n " +
                "It is running and the time is : " + new Date()+
                "\n-------------------------------\n");
    }

}

package gentle.test;

import org.quartz.JobExecutionException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.annotation.Resource;
import java.text.SimpleDateFormat;
import java.util.Date;


public class UserSyncTask {

    private final Logger logger = LoggerFactory.getLogger(this.getClass());

    @Resource
    SchedulerTest test;
    @Resource
    Show show;


    public void cronDepartmentsAndUsersJob() {

        logger.info("\n\n 定时--开始，当前时间： " + dateFormat().format(new Date()));
//        test.addJob();

        try {
            show.execute(null);
        } catch (JobExecutionException e) {
            e.printStackTrace();
        }
        logger.info("\n\n 定时--结束，当前时间：" + dateFormat().format(new Date()));
    }

    private SimpleDateFormat dateFormat() {
        return new SimpleDateFormat("HH:mm:ss");
    }
}

package gentle.test;

import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;

import java.util.Date;

/**
 * @author silence
 * @date 2018/7/17 11:37
 */
@Service("show")
public class Show implements Job {


    private static Logger _log = LoggerFactory.getLogger(Show.class);

    @Override
    public void execute(JobExecutionContext arg0) throws JobExecutionException {

        _log.info("\n\n-------------------------------\n " +
                "It is running and the time is : " + new Date()+
                "\n-------------------------------\n");
    }

}