19 lines
893 B
Java
19 lines
893 B
Java
package com.luozhihui.project.mapper;
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import com.luozhihui.project.entity.Comment;
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import org.apache.ibatis.annotations.Insert;
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import org.apache.ibatis.annotations.Select;
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import org.springframework.transaction.annotation.Transactional;
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import java.util.List;
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public interface CommentMapper {
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// SQL语句 将 姓名、内容、帖子ID、用户ID、发布时间插入到comments表中
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@Insert("insert into `comments`(`UserName`,`text`,`CarId`,`UserId`,`pub_date`) VALUES(#{UserName},#{text},#{CarId},#{UserId},NOW())")
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@Transactional
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void save(Comment comment);
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//查询所有评论
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@Select("SELECT comments.CommentId,comments.text,comments.pub_date,car.CarLicense,car.CarModel,user.UserName FROM `comments` JOIN `user` ON `user`.UserId = `comments`.UserId JOIN `car` ON `car`.CarId = `comments`.CarId ")
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List<Comment> FindAllComment();
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}
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