src/main/java/com/system/service/impl/CourseServiceImpl.java

这里只显示每个文件的开头 60 行。登录后可以解锁完整代码。

微信扫码关注公众号，代码整理好后第一时间通知你。

package com.system.service.impl;

import com.system.mapper.CollegeMapper;
import com.system.mapper.CourseMapper;
import com.system.mapper.CourseMapperCustom;
import com.system.mapper.SelectedcourseMapper;
import com.system.po.*;
import com.system.service.CourseService;
import org.apache.commons.beanutils.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.List;


@Service
public class CourseServiceImpl implements CourseService {

    @Autowired
    private CourseMapper courseMapper;

    @Autowired
    private CourseMapperCustom courseMapperCustom;

    @Autowired
    private CollegeMapper collegeMapper;

    @Autowired
    private SelectedcourseMapper selectedcourseMapper;

    public void upadteById(Integer id, CourseCustom courseCustom) throws Exception {
        courseMapper.updateByPrimaryKey(courseCustom);
    }

    public Boolean removeById(Integer id) throws Exception {
        //自定义查询条件
        SelectedcourseExample example = new SelectedcourseExample();
        SelectedcourseExample.Criteria criteria = example.createCriteria();
        criteria.andCourseidEqualTo(id);
        List<Selectedcourse> list = selectedcourseMapper.selectByExample(example);

        if (list.size() == 0) {
            courseMapper.deleteByPrimaryKey(id);
            return true;
        }

        return false;
    }

    public List<CourseCustom> findByPaging(Integer toPageNo) throws Exception {
        PagingVO pagingVO = new PagingVO();
        pagingVO.setToPageNo(toPageNo);

        List<CourseCustom> list = courseMapperCustom.findByPaging(pagingVO);
        return list;
    }

    public Boolean save(CourseCustom couseCustom) throws Exception {
        Course course = courseMapper.selectByPrimaryKey(couseCustom.getCourseid());