SpringBootLearning/myBatisSpringBoot/src/main/java/org/example/StudentServiceImpl.java

package org.example;

import org.example.mapper.StudentMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service("studentService")
public class StudentServiceImpl implements StudentService{
    @Autowired
    private StudentMapper studentMapper;

    @Override
    public int add(Student student) {
        return studentMapper.add(student);
    }

    @Override
    public int update(Student student) {
        return studentMapper.update(student);
    }

    @Override
    public int deleteBysno(String sno) {
        return studentMapper.deleteBysno(sno);
    }

    @Override
    public Student queryStudentBySno(String sno) {
        return studentMapper.queryStudentBySno(sno);
    }

    @Override
    public List<Student> queryStudents() {
        List<Student> students = studentMapper.queryStudents();
        for (Student student : students) {
            System.out.println(student.getName() + student.getSex() + student.getSno());
        }
        return students;
    }
}