单元测试中注入失败

[Johnson112358]

import com.tangyh.lamp.authority.dao.common.AreaMapper;
import com.tangyh.lamp.authority.entity.auth.Application;
import com.tangyh.lamp.authority.entity.common.Area;
import com.tangyh.lamp.patrol.dao.PatrolTaskMapper;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

import javax.annotation.Resource;

@SpringBootTest(classes = Application.class)
@RunWith(SpringRunner.class)
public class CommonTest {
    @Resource
    AreaMapper areaMapper;

    @Test
    public void testCode(){
        System.out.println(areaMapper.selectById(1L));
    }
}

报错信息如下

error.txt

[Johnson112358]

项目为 springboot版 2.3.4