UniversityServiceImpl.java
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package com.sincere.student.service.impl;
import com.github.pagehelper.PageHelper;
import com.sincere.student.dto.UniversitySearchDto;
import com.sincere.student.mapper.UniversityMajorMapper;
import com.sincere.student.mapper.UniversityMapper;
import com.sincere.student.model.University;
import com.sincere.student.model.UniversityMajor;
import com.sincere.student.service.UniversityService;
import com.sincere.student.utils.Page;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.logging.Handler;
@Service
public class UniversityServiceImpl implements UniversityService {
@Autowired
UniversityMapper universityMapper ;
@Autowired
UniversityMajorMapper universityMajorMapper ;
@Override
public Page<University> getList(UniversitySearchDto universitySearchDto) {
Page<University> page = new Page<>(universitySearchDto.getPage(),universitySearchDto.getPageSize());
PageHelper.startPage(universitySearchDto.getPage(),universitySearchDto.getPageSize());
if(StringUtils.isNotBlank(universitySearchDto.getSearch())){
universitySearchDto.setSearch("%"+universitySearchDto.getSearch()+"%");
}
List<University> list = universityMapper.getList(universitySearchDto);
for(University university : list){
university.setMajorList(universityMajorMapper.selectUniversityMajor(university.getId()));
}
page.setList(list);
page.setCount(universityMapper.getListCount(universitySearchDto));
return page;
}
@Override
public int create(University university) {
return universityMapper.create(university);
}
@Override
public int delete(int id) {
universityMajorMapper.deleteByUniversityId(id);
return universityMapper.delete(id);
}
@Override
public int update(University university) {
return universityMapper.update(university);
}
@Override
public int addMajor(List<UniversityMajor> list) {
universityMajorMapper.deleteByUniversityId(list.get(0).getUniversityId());
List<UniversityMajor> result = new ArrayList<>();
int i = 0 ;
for(UniversityMajor universityMajor :list){
i++ ;
result.add(universityMajor);
if(i % 100 == 0){
universityMajorMapper.insertBatch(result);
result = new ArrayList<>();
}
}
if(result.size() > 0){
universityMajorMapper.insertBatch(result);
}
return 1;
}
@Override
public Integer selectByName(String name) {
return universityMapper.selectByName(name);
}
@Override
public Integer selectIdByMajor(String major , int id) {
Map<String ,String> map = new HashMap<>();
map.put("major",major);
map.put("id",id+"");
return universityMajorMapper.selectIdByMajor(map);
}
}