src/main/java/com/gxuwz/jyd/service/impl/SysStudentServiceImpl.java

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package com.gxuwz.jyd.service.impl;

import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.gxuwz.jyd.pojo.SysStudent;
import com.gxuwz.jyd.mapper.SysStudentMapper;
import com.gxuwz.jyd.service.SysStudentService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

/**
 * <p>
 * 学生表 服务实现类
 * </p>
 *
 * @author jyd
 * @since 2021-05-06
 */
@Service
public class SysStudentServiceImpl extends ServiceImpl<SysStudentMapper, SysStudent> implements SysStudentService {

    @Autowired
    private SysStudentMapper studentMapper;

    @Override
    public PageInfo<SysStudent> queryStudentPageByName(Integer pageNum, Integer pageSize, String stuName) {
        PageHelper.startPage(pageNum,pageSize);
        List<SysStudent> sysStudents = studentMapper.queryStudentPageByName(stuName);
        PageInfo<SysStudent> pageInfo = new PageInfo<SysStudent>(sysStudents);
        return pageInfo;
    }

    @Override
    public void insertStudent(SysStudent student) {
        studentMapper.insert(student);
    }

    @Override
    public SysStudent queryStudentById(Integer id) {
        return studentMapper.selectById(id);
    }

    @Override
    public Integer updateStudent(SysStudent student) {
        return studentMapper.updateById(student);
    }

    @Override
    public void deleteStudent(Integer id) {
        studentMapper.deleteById(id);
    }
}