|  |  | 
 |  |  | import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper; | 
 |  |  | import com.baomidou.mybatisplus.core.metadata.IPage; | 
 |  |  | import com.baomidou.mybatisplus.extension.plugins.pagination.Page; | 
 |  |  | import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl; | 
 |  |  | import com.moral.api.entity.Test; | 
 |  |  | import com.moral.api.exception.BusinessException; | 
 |  |  | import com.moral.api.mapper.TestMapper; | 
 |  |  | import com.moral.api.service.TestService; | 
 |  |  | import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl; | 
 |  |  | import org.springframework.beans.factory.annotation.Autowired; | 
 |  |  | import org.springframework.stereotype.Service; | 
 |  |  | import org.springframework.transaction.annotation.Transactional; | 
 |  |  |  | 
 |  |  | import javax.annotation.Resource; | 
 |  |  |  | 
 |  |  | /** | 
 |  |  |  * <p> | 
 |  |  | 
 |  |  | @Service | 
 |  |  | public class TestServiceImpl extends ServiceImpl<TestMapper, Test> implements TestService { | 
 |  |  |  | 
 |  |  |     @Autowired | 
 |  |  |     @Resource | 
 |  |  |     private TestMapper testMapper; | 
 |  |  |     @Override | 
 |  |  |     public Page<Test> selectByPage(Test test, Integer page, Integer size) { | 
 |  |  | 
 |  |  |     } | 
 |  |  |  | 
 |  |  |     @Override | 
 |  |  |     @Transactional | 
 |  |  |     public void saveTest() throws Exception{ | 
 |  |  |         Test t=new Test(); | 
 |  |  |         t.setName("aaaa"); |