35 lines
826 B
Java
35 lines
826 B
Java
package com.campus.service;
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import com.campus.entity.Student;
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import com.campus.mapper.StudentMapper;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import java.util.List;
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@Service
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public class StudentService {
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@Autowired
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private StudentMapper studentMapper;
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public List<Student> listAll() {
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return studentMapper.selectAll();
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}
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public void add(Student student) {
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studentMapper.insert(student);
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}
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// 参数类型改为 Integer
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public Student getByStudentId(Integer studentId) {
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return studentMapper.selectByStudentId(studentId);
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}
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public void update(Student student) {
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studentMapper.update(student);
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}
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public void delete(Integer id) {
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studentMapper.delete(id);
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}
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} |