mybatis注解形式操作数据

import java.util.List;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.type.Alias;

public interface UserMapper {

@Select("SELECT * FROM user ")
List<User> selectAllUser();

}

<mappers>
<mapper resource="com/ibatis/pojo/user.xml" /> <!--xml形式映射 -->
<mapper class="com.ibatis.pojo.UserMapper" />   <!--注解形式映射 或者 代码中手动加载:ssf.getConfiguration().
addMapper(UsergMapper.class);-->
</mappers>

BlogMapper mapper = session.getMapper(BlogMapper.class);