Mybatis使用注解进行增删改查

// 增
public interface StudentMapper{
    @Insert("insert into student (stud_id, name, email, addr_id, phone)values(#{studId},#{name},#{email},#{address.addrId},#{phone})")
    int insertStudent(Student student);
}
public interface StudentMapper{
    @Insert("insert into student (name,email,addr_id,phone)values(#{name},#{email},#{address.addrId},#{phone})")
    @Options(useGeneratedKeys=true,keyProperty="studId")
    int insertStudent(Student student);
}
public interface StudentMapper{
    @Insert("insert into student (name,email,addr_id,phone)values(#{name},#{email},#{address.addrId},#{phone})")
    @SelectKey(statement="select stud_id_seq.nextval from dual",keyProperty="studId",resultType=int.calss,before=true)
    int insertStudent(Student student);
}

// 改
@Update("update students set name=#{name},email=#{email}")
int updateStudent(Student student);

// 删
@Delete("delete form students where stud_id=#{studId}")
 int deleteStudent(int studId)

// 查
@Select("select name,email,phone from students where stud_id=#{studId}")
Student findStudentById(Integer studId);

推荐使用xml文件进行配置，方面后续修改容易