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

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package com.system.service.impl;

import com.system.mapper.SelectedcourseMapper;
import com.system.mapper.StudentMapper;
import com.system.po.*;
import com.system.service.CourseService;
import com.system.service.SelectedCourseService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;


@Service
public class SelectedCourseServiceImpl implements SelectedCourseService {

    @Autowired
    private SelectedcourseMapper selectedcourseMapper;

    @Autowired
    private StudentMapper studentMapper;

//    @Resource(name = "courseServiceImpl")
//    private CourseService courseService;


    public List<SelectedCourseCustom> findByCourseID(Integer id) throws Exception {

        SelectedcourseExample example = new SelectedcourseExample();
        SelectedcourseExample.Criteria criteria = example.createCriteria();
        criteria.andCourseidEqualTo(id);

        List<Selectedcourse> list = selectedcourseMapper.selectByExample(example);
        List<SelectedCourseCustom> secList = new ArrayList<SelectedCourseCustom>();
        for (Selectedcourse s: list) {
            SelectedCourseCustom sec = new SelectedCourseCustom();
            BeanUtils.copyProperties(s, sec);
            //判断是否完成类该课程
            if (sec.getMark() != null) {
                sec.setOver(true);
            }
            Student student = studentMapper.selectByPrimaryKey(sec.getStudentid());
            StudentCustom studentCustom = new StudentCustom();
            BeanUtils.copyProperties(student, studentCustom);

            sec.setStudentCustom(studentCustom);

            secList.add(sec);
        }

        return secList;
    }

    public List<SelectedCourseCustom> findByCourseIDPaging(Integer page, Integer id) throws Exception {
        return null;
    }