文末获取源码

开发语言：Java

框架：springboot

JDK版本：JDK1.8

服务器：tomcat7

数据库：mysql 5.7/8.0

数据库工具：Navicat11

开发软件：eclipse/myeclipse/idea

Maven包：Maven3.3.9

浏览器：谷歌浏览器

前言介绍 

系统采用了Java技术,springboot + vue 的前后端分离学生选课系统，前端使用 element-ui 组件库，选择MySQL作为系统的数据库，开发工具选择 idea来进行系统的设计。基本实现了学生选课系统应有的主要功能模块，本系统有以下功能：

（1）前台：首页、课程信息、校园论坛、校园公告、个人中心、后台管理。 

（2）管理员：首页、个人中心、学生管理、教师管理课、程信息管理、课程分类管理、选课信息管理、作业信息管理、提交作业管理、学生成绩管理、校园论坛、系统管理。

（3）学生：首页、个人中心、选课信息管理、作业信息管理、提交作业管理、学生成绩管理、我的收藏管理。

（4）教师：首页、个人中心、课程信息管理、选课信息管理、作业信息管理、提交作业管理、学生成绩管理。

系统展示

前台 

课程信息

 

管理员功能

登录 

课程信息管理

选课信息管理 

校园论坛

学生功能

作业信息管理

学生成绩管理

 

教师

课程信息管理 

部分核心代码

# Tomcat
server:
    tomcat:
        uri-encoding: UTF-8
    port: 8080
    servlet:
        context-path: /springbootwxjjv

spring:
    datasource:
        driverClassName: com.mysql.jdbc.Driver
        url: jdbc:mysql://127.0.0.1:3306/springbootwxjjv?useUnicode=true&characterEncoding=utf-8&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=GMT%2B8
        username: root
        password:

#        driverClassName: com.microsoft.sqlserver.jdbc.SQLServerDriver
#        url: jdbc:sqlserver://127.0.0.1:1433;DatabaseName=springbootwxjjv
#        username: sa
#        password: 123456

    servlet:
      multipart:
        max-file-size: 300MB
        max-request-size: 300MB
    resources:
      static-locations: classpath:static/,file:static/

#mybatis
mybatis-plus:
  mapper-locations: classpath*:mapper/*.xml
  #实体扫描，多个package用逗号或者分号分隔
  typeAliasesPackage: com.entity
  global-config:
    #主键类型  0:"数据库ID自增", 1:"用户输入ID",2:"全局唯一ID (数字类型唯一ID)", 3:"全局唯一ID UUID";
    id-type: 1
    #字段策略 0:"忽略判断",1:"非 NULL 判断"),2:"非空判断"
    field-strategy: 1
    #驼峰下划线转换
    db-column-underline: true
    #刷新mapper 调试神器
    refresh-mapper: true
    #逻辑删除配置
    logic-delete-value: -1
    logic-not-delete-value: 0
    #自定义SQL注入器
    sql-injector: com.baomidou.mybatisplus.mapper.LogicSqlInjector
  configuration:
    map-underscore-to-camel-case: true
    cache-enabled: false
    call-setters-on-nulls: true
    #springboot 项目mybatis plus 设置 jdbcTypeForNull (oracle数据库需配置JdbcType.NULL, 默认是Other)
    jdbc-type-for-null: 'null' 

/**
 * 选课信息
 * 后端接口
 * @author 
 * @email 
 * @date 2022-04-30 14:26:20
 */
@RestController
@RequestMapping("/xuankexinxi")
public class XuankexinxiController {
    @Autowired
    private XuankexinxiService xuankexinxiService;


    


    /**
     * 后端列表
     */
    @RequestMapping("/page")
    public R page(@RequestParam Map<String, Object> params,XuankexinxiEntity xuankexinxi,
		HttpServletRequest request){
		String tableName = request.getSession().getAttribute("tableName").toString();
		if(tableName.equals("jiaoshi")) {
			xuankexinxi.setGonghao((String)request.getSession().getAttribute("username"));
		}
		if(tableName.equals("xuesheng")) {
			xuankexinxi.setXuehao((String)request.getSession().getAttribute("username"));
		}
        EntityWrapper<XuankexinxiEntity> ew = new EntityWrapper<XuankexinxiEntity>();
		PageUtils page = xuankexinxiService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, xuankexinxi), params), params));

        return R.ok().put("data", page);
    }
    
    /**
     * 前端列表
     */
	@IgnoreAuth
    @RequestMapping("/list")
    public R list(@RequestParam Map<String, Object> params,XuankexinxiEntity xuankexinxi, 
		HttpServletRequest request){
        EntityWrapper<XuankexinxiEntity> ew = new EntityWrapper<XuankexinxiEntity>();
		PageUtils page = xuankexinxiService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, xuankexinxi), params), params));
        return R.ok().put("data", page);
    }

	/**
     * 列表
     */
    @RequestMapping("/lists")
    public R list( XuankexinxiEntity xuankexinxi){
       	EntityWrapper<XuankexinxiEntity> ew = new EntityWrapper<XuankexinxiEntity>();
      	ew.allEq(MPUtil.allEQMapPre( xuankexinxi, "xuankexinxi")); 
        return R.ok().put("data", xuankexinxiService.selectListView(ew));
    }

	 /**
     * 查询
     */
    @RequestMapping("/query")
    public R query(XuankexinxiEntity xuankexinxi){
        EntityWrapper< XuankexinxiEntity> ew = new EntityWrapper< XuankexinxiEntity>();
 		ew.allEq(MPUtil.allEQMapPre( xuankexinxi, "xuankexinxi")); 
		XuankexinxiView xuankexinxiView =  xuankexinxiService.selectView(ew);
		return R.ok("查询选课信息成功").put("data", xuankexinxiView);
    }
	
    /**
     * 后端详情
     */
    @RequestMapping("/info/{id}")
    public R info(@PathVariable("id") Long id){
        XuankexinxiEntity xuankexinxi = xuankexinxiService.selectById(id);
        return R.ok().put("data", xuankexinxi);
    }

    /**
     * 前端详情
     */
	@IgnoreAuth
    @RequestMapping("/detail/{id}")
    public R detail(@PathVariable("id") Long id){
        XuankexinxiEntity xuankexinxi = xuankexinxiService.selectById(id);
        return R.ok().put("data", xuankexinxi);
    }
    



    /**
     * 后端保存
     */
    @RequestMapping("/save")
    public R save(@RequestBody XuankexinxiEntity xuankexinxi, HttpServletRequest request){
    	xuankexinxi.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());
    	//ValidatorUtils.validateEntity(xuankexinxi);
        xuankexinxiService.insert(xuankexinxi);
        return R.ok();
    }
    
    /**
     * 前端保存
     */
    @RequestMapping("/add")
    public R add(@RequestBody XuankexinxiEntity xuankexinxi, HttpServletRequest request){
    	xuankexinxi.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());
    	//ValidatorUtils.validateEntity(xuankexinxi);
        xuankexinxiService.insert(xuankexinxi);
        return R.ok();
    }

    /**
     * 修改
     */
    @RequestMapping("/update")
    @Transactional
    public R update(@RequestBody XuankexinxiEntity xuankexinxi, HttpServletRequest request){
        //ValidatorUtils.validateEntity(xuankexinxi);
        xuankexinxiService.updateById(xuankexinxi);//全部更新
        return R.ok();
    }
    

    /**
     * 删除
     */
    @RequestMapping("/delete")
    public R delete(@RequestBody Long[] ids){
        xuankexinxiService.deleteBatchIds(Arrays.asList(ids));
        return R.ok();
    }
    
    /**
     * 提醒接口
     */
	@RequestMapping("/remind/{columnName}/{type}")
	public R remindCount(@PathVariable("columnName") String columnName, HttpServletRequest request, 
						 @PathVariable("type") String type,@RequestParam Map<String, Object> map) {
		map.put("column", columnName);
		map.put("type", type);
		
		if(type.equals("2")) {
			SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
			Calendar c = Calendar.getInstance();
			Date remindStartDate = null;
			Date remindEndDate = null;
			if(map.get("remindstart")!=null) {
				Integer remindStart = Integer.parseInt(map.get("remindstart").toString());
				c.setTime(new Date()); 
				c.add(Calendar.DAY_OF_MONTH,remindStart);
				remindStartDate = c.getTime();
				map.put("remindstart", sdf.format(remindStartDate));
			}
			if(map.get("remindend")!=null) {
				Integer remindEnd = Integer.parseInt(map.get("remindend").toString());
				c.setTime(new Date());
				c.add(Calendar.DAY_OF_MONTH,remindEnd);
				remindEndDate = c.getTime();
				map.put("remindend", sdf.format(remindEndDate));
			}
		}
		
		Wrapper<XuankexinxiEntity> wrapper = new EntityWrapper<XuankexinxiEntity>();
		if(map.get("remindstart")!=null) {
			wrapper.ge(columnName, map.get("remindstart"));
		}
		if(map.get("remindend")!=null) {
			wrapper.le(columnName, map.get("remindend"));
		}

		String tableName = request.getSession().getAttribute("tableName").toString();
		if(tableName.equals("jiaoshi")) {
			wrapper.eq("gonghao", (String)request.getSession().getAttribute("username"));
		}
		if(tableName.equals("xuesheng")) {
			wrapper.eq("xuehao", (String)request.getSession().getAttribute("username"));
		}

		int count = xuankexinxiService.selectCount(wrapper);
		return R.ok().put("count", count);
	}
	







}