springboot使用mybatis的注解时,可以使用@Mapper注解简单明了,也可以使用@MapperScan
使用@Mapper示例
直接在Mapper类上面添加注解@Mapper,这种方式需要每一个mapper类都添加此注解,有些麻烦
@Mapper
@Repository("studentDao")
public interface StudentDao {
public int addStudent(Student stu);
public int editStudent(Student stu);
public List<Student> selectStudent(Student stu);
public int deleteStudent(Integer id);
public int deleteStudents(String ids);
public int delsStudents(String[] id);
public Student selectStudentById(Integer id);
}使用@MapperScan示例
直接将mapper所在的目录扫描进去就行,一劳永逸
package com.yt;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
@MapperScan({"com.yt.dao"})
public class SpringytApplication {
public static void main(String[] args) {
SpringApplication.run(SpringytApplication.class, args);
}
}