java基于的springboot学生选课系统,学校选课管理系统，附源码+数据库，适合课程设计、毕业设计
1、项目介绍
（1）专业管理系统:登录专业管理平台后，管理员能够对专业进行增加、删除、查看、修改等功能。专业信息包含专业名称、所属院系等。
（2）院系管理系统:登录院系管理平台后，可对院系进行增、删、改、查等功能。院系信息包含院系名称。
（3）课程管理系统：登录课程管理平台后，能够通过搜索课程快速检索出相关教师信息以及班级。课程信息包含课程名称、课程描述、所属专业及所属教师。
（4）学生管理系统：登录学生管理系统后，管理员能够查看所查找的学生相关信息对其进行增、删、改、查。学生信息包括学生编号、学生姓名、所属院系、性别、所属专业等。
（5）教师管理系统：登录教师管理平台后，可对教师所教课程进行管理。教师信息包含姓名、工号、所属院系等。同时也可以查看、删除、修改自己的信息。
2、技术框架
运行系统：windows
编程语言：java
系统架构：B/S
后端框框：SpringBoot（Spring+SpringMVC+Mybatis）
前端框架：HTML+CSS+JavaScript
前后端分离：否
数据库：MySQL
Maven项目：是
数据库表数量：9
运行环境：JDK8+MySQL5.6+Maven3.6+idea
3、演示视频
java基于的springboot学生选课系统,
4、项目截图
5、代码示例
package com.yht.controller;
import com.yht.entity.ClassEntity;
import com.yht.entity.Curriculum;
import com.yht.entity.Student;
import com.yht.entity.Teacher;
import com.yht.service.IClassService;
import com.yht.service.ICurriculumService;
import com.yht.service.IStudentService;
import com.yht.service.ITeacherService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
@RestController
public class AnalysisController {
@Autowired
private IStudentService studentService;
@Autowired
private ITeacherService teacherService;
@Autowired
private ICurriculumService curriculumService;
@Autowired
private IClassService classService;
/**
* 学生的选课数量
* @param id
* @return
*/
@RequestMapping("/studentCount")
public Map<String, Object> getData(Integer id){
//先查到所有学生，再查到所有学生的选课数，最后添加到map
List<Student> studentList = studentService.selectAll();
for(Student student :studentList){
List<String> stringList = studentService.selectClassCount(student.getStuNo());
student.setClassCount(stringList.size());
}
Map<String, Object> map = new HashMap<>();
//names：学生姓名，counts：学生选课数
String[] names = new String[studentList.size()];
int[] counts = new int[studentList.size()];
int i = 0;
//存入数据
for(Student student :studentList){
names[i] = student.getName();
counts[i] = student.getClassCount();
i++;
}
map.put("names", names);
map.put("counts", counts);
return map;
}
/**
* 学生的年龄范围
* @param id
* @return
*/
@RequestMapping("/studentAge")
public Map<String, Object> getData2(Integer id){
List<Student> studentList = studentService.selectAll();
List<Integer> list = new ArrayList<>();
Map<String, Object> map = new HashMap<>();
for(Student student :studentList){
String birth = student.getBirth().substring(0,4);
int val = 2021 - Integer.parseInt(birth);
list.add(val);
}
String[] ageRanges = new String[4];
ageRanges[0] = "18岁以下";
ageRanges[1] = "18岁到24岁";
ageRanges[2] = "24岁到30岁";
ageRanges[3] = "30岁以上";
int[] ageCounts = new int[4];
for(int i : list){
if(i < 18){
ageCounts[0] += 1;
}else if(i >=18 && i < 24){
ageCounts[1] += 1;
}else if(i >=24 && i < 30){
ageCounts[2] += 1;
}else if(i >= 30){
ageCounts[3] += 1;
}
}
map.put("ageRanges", ageRanges);
map.put("ageCounts", ageCounts);
return map;
}
/**
* 老师代课数量
* @return
*/
@RequestMapping("/takeClassCount")
public Map<String, Object> takeClassCount(){
List<Teacher> teacherList = teacherService.selectAll();
for(Teacher teacher : teacherList){
teacher.setClassCount(curriculumService.selectByTeacherNo(teacher.getTeacherNo()).size());
}
String[] names = new String[teacherList.size()];
int[] counts = new int[teacherList.size()];
int i = 0;
for(Teacher teacher :teacherList){
names[i] = teacher.getName();
counts[i] = teacher.getClassCount();
i++;
}
Map<String, Object> map = new HashMap<>();
map.put("names", names);
map.put("counts", counts);
return map;
}
/**
* 教师的年龄范围
* @return
*/
@RequestMapping("/teacherAge")
public Map<String, Object> teacherAge(){
List<Teacher> teacherList = teacherService.selectAll();
Map<String, Object> map = new HashMap<>();
String[] ageRanges = new String[4];
ageRanges[0] = "30岁以下";
ageRanges[1] = "30岁到40岁";
ageRanges[2] = "40岁到55岁";
ageRanges[3] = "55岁以上";
int[] ageCounts = new int[4];
for(Teacher teacher : teacherList){
if(teacher.getAge() < 30){
ageCounts[0] += 1;
}else if(teacher.getAge() >=30 && teacher.getAge() < 40){
ageCounts[1] += 1;
}else if(teacher.getAge() >=40 && teacher.getAge() < 55){
ageCounts[2] += 1;
}else if(teacher.getAge() >= 55){
ageCounts[3] += 1;
}
}
map.put("ageRanges", ageRanges);
map.put("ageCounts", ageCounts);
return map;
}
/**
* 课程等级
* @return
*/
@RequestMapping("/curriculumGrade")
public Map<String, Object> curriculumGrade(){
List<Curriculum> curriculumList = curriculumService.selectAll();
String[] names = new String[curriculumList.size()];
int[] grades = new int[curriculumList.size()];
int i = 0;
for(Curriculum curriculum :curriculumList){
names[i] = curriculum.getClassName();
grades[i] = curriculum.getClassGrade();
i++;
}
Map<String, Object> map = new HashMap<>();
map.put("names", names);
map.put("grades", grades);
return map;
}
/**
* 课程课时
* @return
*/
@RequestMapping("/curriculumTime")
public Map<String, Object> curriculumTime(){
List<Curriculum> curriculumList = curriculumService.selectAll();
Map<Integer, Integer> myMap = new HashMap<>();
for(Curriculum curriculum : curriculumList){
if(myMap.containsKey(curriculum.getClassHour())){
myMap.put(curriculum.getClassHour(), myMap.get(curriculum.getClassHour())+1);
}else{
myMap.put(curriculum.getClassHour(), 1);
}
}
System.out.println(myMap);
int[] hours = new int[myMap.size()];
int[] counts = new int[myMap.size()];
int i = 0;
for (Map.Entry<Integer, Integer> entry : myMap.entrySet()) {
hours[i] = entry.getKey();
counts[i] = entry.getValue();
i++;
}
Map<String, Object> map = new HashMap<>();
map.put("hours", hours);
map.put("counts", counts);
return map;
}
/**
* 班级等级
* @return
*/
@RequestMapping("/classGrade")
public Map<String, Object> classGrade(){
List<ClassEntity> classEntityList = classService.selectAll();
String[] names = new String[classEntityList.size()];
int[] grades = new int[classEntityList.size()];
int i = 0;
for(ClassEntity classEntity :classEntityList){
names[i] = classEntity.getMajor();
grades[i] = classEntity.getClassGrade();
i++;
}
Map<String, Object> map = new HashMap<>();
map.put("names", names);
map.put("grades", grades);
return map;
}
/**
* 班级人数
* @return
*/
@RequestMapping("/classCount")
public Map<String, Object> classCount(){
List<ClassEntity> classEntityList = classService.selectAll();
for(ClassEntity classEntity : classEntityList){
classEntity.setStuCount(studentService.selectByCondition("","", classEntity.getClassNo()).size());
}
String[] names = new String[classEntityList.size()];
int[] counts = new int[classEntityList.size()];
int i = 0;
for(ClassEntity classEntity :classEntityList){
names[i] = classEntity.getMajor();
counts[i] = classEntity.getStuCount();
i++;
}
Map<String, Object> map = new HashMap<>();
map.put("names", names);
map.put("counts", counts);
return map;
}
}
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