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@ -17,4 +17,10 @@ public class SubjectScore {
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private Date finishedDate;
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private boolean isFailed;
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public boolean getIsFailed(){
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return this.isFailed;
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}
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}
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@ -26,4 +26,7 @@ public class StudentCourse {
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Date finishedDate;
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public boolean getIsFailed() {
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return this.isFailed;
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}
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}
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@ -11,4 +11,7 @@ import java.util.List;
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public interface StudentCourseRepository extends JpaRepository<StudentCourse, Integer> {
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List<StudentCourse> findByStudentId(int studentId);
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List<StudentCourse> findByStudentId(int studentId, Sort sort);
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List<StudentCourse> findByStudentIdAndTerm(int studentId,int term);
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List<StudentCourse> findByStudentIdAndTerm(int studentId,int term,Sort sort);
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}
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@ -5,6 +5,7 @@ import org.springframework.data.domain.Sort;
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import org.springframework.data.jpa.repository.JpaRepository;
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import org.springframework.stereotype.Repository;
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import java.util.List;
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import java.util.Optional;
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@Repository
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153
src/main/java/com/codesdream/ase/service/JudgeService.java
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153
src/main/java/com/codesdream/ase/service/JudgeService.java
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@ -0,0 +1,153 @@
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package com.codesdream.ase.service;
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import com.codesdream.ase.component.student.SubjectScore;
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import com.codesdream.ase.model.student.Course;
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import com.codesdream.ase.model.student.Student;
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import com.codesdream.ase.model.student.StudentCourse;
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import com.codesdream.ase.repository.student.CourseRepository;
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import com.codesdream.ase.repository.student.StudentCourseRepository;
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import com.codesdream.ase.repository.student.StudentRepository;
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import org.apache.xmlbeans.impl.xb.xsdschema.Public;
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import org.springframework.data.domain.Sort;
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import org.springframework.stereotype.Service;
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import javax.annotation.Resource;
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import java.util.ArrayList;
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import java.util.List;
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@Service
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public class JudgeService {
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@Resource
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StudentCourseRepository scRepo;
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@Resource
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CourseRepository courseRepository;
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@Resource
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StudentRepository students;
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/**
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* 根据给定排序方式查询某学生的成绩情况
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* @see SubjectScore
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* @see StudentCourse
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* @param studentId 学生id
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* @param term 学期
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* @param flag 指定排序方式，0表示按学期排序，1表示按分数排序，2表示按照学分排序，否则表示不排序
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* @return
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*/
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public List<SubjectScore> displayScore (int studentId, int term, int flag){
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Sort sort;
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switch (flag){
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case 0:{
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sort = Sort.by(Sort.Direction.ASC, "term");
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break;
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}
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case 1:{
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sort = Sort.by(Sort.Direction.ASC, "score");
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break;
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}
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case 2:{
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sort = Sort.by(Sort.Direction.ASC, "credit");
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break;
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}
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default:
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sort = null;
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}
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List<StudentCourse> studentCourseList = new ArrayList<>();
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if(sort == null){
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studentCourseList = scRepo.findByStudentIdAndTerm(studentId,term);
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}else{
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studentCourseList = scRepo.findByStudentIdAndTerm(studentId,term,sort);
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}
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if(studentCourseList.isEmpty()){
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return null;
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}
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List<SubjectScore> subjectScores = new ArrayList<>();
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for(StudentCourse studentCourse : studentCourseList){
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Course course = courseRepository.findById(studentCourse.getCourseId()).get();
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SubjectScore sc = new SubjectScore();
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sc.setCredit(course.getCredit());
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sc.setFinishedDate(studentCourse.getFinishedDate());
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sc.setScore(studentCourse.getScore());
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sc.setStudentId(studentCourse.getStudentId());
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subjectScores.add(sc);
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}
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return subjectScores;
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}
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/**
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* 判断某学生某学期是否有学业警告
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* @param studentId 学生id
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* @param term 学期
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* @return 是否警告
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*/
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public boolean judgeWarning(int studentId,int term){
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List<SubjectScore> scores= displayScore(studentId,term,1);
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double sum=0;
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for(SubjectScore ss:scores){
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if(ss.getScore()>=60.0||ss.getIsFailed()==false){
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sum+=ss.getCredit();
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}
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}
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if(sum<15.0){
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return true;
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}
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else return false;
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}
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/**
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* 判断某学生某学期选课学分是否低于20分
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* @param studentId 学生id
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* @param term 学期
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* @return 是否低于20学分
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*/
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public boolean judgeLowCredit(int studentId,int term){
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List<SubjectScore> scores= displayScore(studentId,term,1);
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double sum=0;
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for(SubjectScore ss:scores){
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sum+=ss.getCredit();
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}
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if(sum<20.0){
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return true;
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}
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else return false;
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}
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// /**
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// * 获取某个学期，所有有学业预警的学生
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// * @param term 学期
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// * @return 学生列表
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// */
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// public List<Student> getWarning(int term){
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//
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// List<Student> result= new ArrayList<>();
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// for (Student s:students){
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// if(judgeWarning(s.getId(),term)){
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// result.add(s);
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// }
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// }
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// return result;
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// }
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// /**
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// * 获取某个学期，所有选课低于20分的学生
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// * @param term 学期
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// * @return 学生列表
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// */
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// public List<Student> getLowCredit(int term){
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//
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// List<Student> result= new ArrayList<>();
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// for (Student s:students){
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// if(judgeLowCredit(s.getId(),term)){
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// result.add(s);
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// }
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// }
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// return result;
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// }
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}
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@ -94,6 +94,7 @@ public class StaticsService {
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sc.setFinishedDate(studentCourse.getFinishedDate());
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sc.setScore(studentCourse.getScore());
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sc.setStudentId(studentCourse.getStudentId());
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sc.setFailed(studentCourse.getIsFailed());
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subjectScores.add(sc);
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}
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@ -149,4 +149,6 @@ public class StudentService {
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return studentRepository.save(student);
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}
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}
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