springboot 学生信息管理系统.zip

package cn.zhou.student.service.impl; import cn.zhou.student.bean.PageBean; import cn.zhou.student.bean.Student; import cn.zhou.student.bean.pageCondition; import cn.zhou.student.dao.StudentMapper; import cn.zhou.student.service.StudentService; import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper; import com.baomidou.mybatisplus.extension.plugins.pagination.Page; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.cache.annotation.Cacheable; import org.springframework.data.redis.core.RedisTemplate; import org.springframework.stereotype.Service; import org.springframework.util.StringUtils; import java.util.List; import java.util.Set; @Service public class StudentServiceImp implements StudentService { @Autowired private StudentMapper mapper; @Autowired private RedisTemplate redisTemplate; public List getAll(){ QueryWrapper<Student> studentQueryWrapper = new QueryWrapper<>(); studentQueryWrapper.like("name","李%"); List<Student> students = mapper.selectList(studentQueryWrapper); return students; } @Override public PageBean getConditionPageStudent(pageCondition pageCondition,String currentPage) { // //redis获取数据 // PageBean<Student> studentPageBean = (PageBean)redisTemplate.opsForValue().get("student:" + currentPage); // if(StringUtils.isEmpty(pageCondition.getDept())&&StringUtils.isEmpty(pageCondition.getName()) // &&StringUtils.isEmpty(pageCondition.getSubject()) // &&StringUtils.isEmpty(pageCondition.getId())&&studentPageBean!=null){ // return studentPageBean; // } PageBean<Student> studentPageBean=new PageBean<Student>(); //创建mybatis分页对象 Page<Student> studentPage = new Page<Student>(pageCondition.getCurrentPage(),studentPageBean.getNum()); //创建条件对象 QueryWrapper<Student> studentQueryWrapper = new QueryWrapper<>(); if(pageCondition.getId()!=null&&pageCondition.getId()!=""){ studentQueryWrapper.eq("id",pageCondition.getId()); } if(pageCondition.getName()!=null&&pageCondition.getName()!=""){ // studentQueryWrapper.eq("name",pageCondition.getName()); studentQueryWrapper.like("name",pageCondition.getName()); } if(pageCondition.getSubject()!=null&&pageCondition.getSubject()!=""){ // studentQueryWrapper.eq("subject",pageCondition.getSubject()); studentQueryWrapper.like("subject",pageCondition.getSubject()); } if(pageCondition.getDept()!=null&&pageCondition.getDept()!=""){ // studentQueryWrapper.eq("dept",pageCondition.getDept()); studentQueryWrapper.like("dept",pageCondition.getDept()); } //查询 mapper.selectPage(studentPage, studentQueryWrapper); //封装结果集对象 studentPageBean.setCurrentPage(studentPage.getCurrent()); studentPageBean.setAllPage(studentPage.getPages()); studentPageBean.setAll(studentPage.getTotal()); studentPageBean.setResults(studentPage.getRecords()); // if(StringUtils.isEmpty(pageCondition.getDept())&&StringUtils.isEmpty(pageCondition.getName())&&StringUtils.isEmpty(pageCondition.getSubject()) // &&StringUtils.isEmpty(pageCondition.getId())&&studentPageBean.getResults().size()!=0){ // redisTemplate.opsForValue().set("student:"+currentPage,studentPageBean); // } return studentPageBean; } @Override public void addStudent(Student student) { int insert = mapper.insert(student); // if(insert>0){ // Set keys = redisTemplate.keys("*"); // redisTemplate.delete(keys); // } } @Override public Student getById(String id) { Student student = mapper.selectById(id); return student; } @Override public void update(Student student) { mapper.updateById(student); // Set keys = redisTemplate.keys("*"); // redisTemplate.delete(keys); } @Override public void delete(String id) { mapper.deleteById(id); // Set keys = redisTemplate.keys("*"); // redisTemplate.delete(keys); } }