——————————DescriptionStart——————————
运行环境
Java≥8、MySQL≥5.7、Tomcat≥8
开发工具
eclipse/idea/myeclipse/sts等均可配置运行
适用
课程设计,大作业,毕业设计,项目练习,学习演示等
功能说明






基于javaweb的SSM+Maven在线选课管理系统(java+ssm+jsp+bootstrap+mysql)
项目介绍
一个简单的“在线教学平台系统”,实现基本的选课功能。 主要功能: 管理员能够实现学生基本信息的录入、修改、删除等操作,其中学生信息包括学号、姓名、性别、专业等信息; 管理员能够实现课程的录入、修改、删除等功能,其中课程信息包括课程号、课程名、课程图片、学分等; 学生能实现选课功能,每个学生可以在首页浏览课程信息,并可以进行选课操作,其中课程信息包括学分、上课地点、课程编号、授课教师、课程名等信息; 管理员可以查看学生选课信息,并可以进行添加选课学生和删除选择该课程的学生等操作; 有汇总功能,管理员首页可以查看没门课程的选课人数。
环境需要
1.运行环境:最好是java jdk 1.8,我们在这个平台上运行的。其他版本理论上也可以。 2.IDE环境:IDEA,Eclipse,Myeclipse都可以。推荐IDEA; 3.tomcat环境:Tomcat 7.x,8.x,9.x版本均可 4.硬件环境:windows 7/8/10 1G内存以上;或者Mac OS; 5.是否Maven项目:是;查看源码目录中是否包含pom.xml;若包含,则为maven项目,否则为非maven项目 6.数据库:MySql 5.7版本;
软件架构
系统是一个基于SSM框架实现的项目,采用当前最流行的框架Spring-SpringMVC-MyBatis设计。 前端:HTML+BootStrap+CSS+Javascript 后端:Spring+SpringMVC+mybatis
使用说明
1.使用IDEA/Eclipse/MyEclipse导入项目,Eclipse/MyEclipse导入时,若为maven项目请选择maven; 若为maven项目,导入成功后请执行maven clean;maven install命令,下载所需jar包; 2.使用Navicat或者其它工具,在mysql中创建对应名称的数据库,并导入项目的sql文件; 3.将项目中db.properties配置文件中的数据库配置改为自己的配置 4.配置tomcat,然后运行项目,输入localhost:8080/xxx登录
——————————CodeStart——————————
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| return SKIP_BODY; }
private String append(String url, String key, int value) { return append(url, key, String.valueOf(value)); }
private String append(String url, String key, String value) { if (url == null || url.trim().length() == 0) { return ""; } if (url.indexOf("?") == -1) { url = url + "?" + key + "=" + value; } else { if (url.endsWith("?")) { url = url + key + "=" + value; } else { url = url + "&" + key + "=" + value; } } return url; }
private String resolveUrl(String url, javax.servlet.jsp.PageContext pageContext) throws JspException { Map params = pageContext.getRequest().getParameterMap(); for (Object key : params.keySet()) { if ("page".equals(key) || "rows".equals(key)){ continue; } Object value = params.get(key); if (value == null){ continue; } if (value.getClass().isArray()) { url = append(url, key.toString(), ((String[]) value)[0]); } else if (value instanceof String) { url = append(url, key.toString(), value.toString());
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| } finally { req.getSession().setAttribute("msg", msg); return "redirect:/chooseManage"; } }
@RequestMapping("/addChoose") public String addChoose(HttpServletRequest req, @RequestParam String stuId, @RequestParam String clzId) { String msg = null; try { Integer cId = Integer.parseInt(clzId); Student s = adminService.getStudentById(stuId); Course c = adminService.getCourseById(cId); if (s != null && c != null) { if(c.getAmount()>c.getSelected()) { int rst = studentService.selectCource(stuId, cId); if (rst==0) { msg = "添加成功"; } else if(rst==1){ msg = "已经选过此课!"; } else if(rst==2){ msg="该课程已选满!"; }else{ msg="未知错误!"; } } }else{ msg="添加失败"; } } catch (Exception e) { msg = "添加失败"; e.printStackTrace(); } finally { req.getSession().setAttribute("msg", msg); return "redirect:/chooseManage"; } }
} package cn.wxj.controller;
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| req.getSession().setAttribute("id",username); return "redirect:adminIndex"; } } return "adminLogin"; }
} package cn.wxj.controller;
@Controller public class SelectController {
@Autowired private IStudentService studentService;
@Autowired private IStudyService studyService;
@Autowired private IClzService clzService;
@RequestMapping("/selectClz") public String selectClz(HttpServletRequest req) { String sId = (String) req.getSession().getAttribute("userId"); Course c = (Course) req.getSession().getAttribute("course");
Integer cId = c.getId();
String msg = null; int rst = studentService.selectCource(sId, cId); if (rst==0) { msg = "选课成功!";
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| try { FileUtils.writeByteArrayToFile(new File(dir,tempfilename), file.getBytes()); } catch (IOException e) { e.printStackTrace(); } course.setImgurl("/upload/imgurl/"+year_moth+"/"+tempfilename); } course.setName(req.getParameter("name")); course.setSelected(0); course.setAmount(Integer.parseInt(req.getParameter("amount"))); course.setBelong(req.getParameter("belong")); course.setCredit(Integer.parseInt(req.getParameter("credit"))); course.setPlace(req.getParameter("place")); course.setDetail(req.getParameter("detail")); course.setTime(req.getParameter("time")); if (adminService.addCourse(course)) { msg = "添加成功"; } else { msg = "添加失败"; } } catch (UnsupportedEncodingException e) { e.printStackTrace(); } catch (Exception e) { msg = "添加失败"; } finally { req.getSession().setAttribute("msg", msg); return "redirect:/courseManage"; } }
@RequestMapping("adminDelCourse") public String delCourse(@RequestParam String id, HttpServletRequest req) { adminService.delCourse(Integer.parseInt(id)); req.getSession().setAttribute("msg", "删除成功"); return "redirect:/courseManage"; }
@RequestMapping(value = "/changeCourse", method = RequestMethod.GET) public String changeCourse(@RequestParam String id, HttpServletRequest req) { Course course = adminService.getCourseById(Integer.parseInt(id));
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| Integer stdId = Integer.parseInt(id); StudyInfo info = adminService.getStudyById(stdId); Course c = adminService.getCourseById(info.getC_id()); c.setSelected(c.getSelected() - 1); adminService.updateCourse(c); adminService.delStudyInfo(stdId); msg = "删除成功"; } catch (Exception e) { msg = "删除失败"; e.printStackTrace(); } finally { req.getSession().setAttribute("msg", msg); return "redirect:/chooseManage"; } }
@RequestMapping("/addChoose") public String addChoose(HttpServletRequest req, @RequestParam String stuId, @RequestParam String clzId) { String msg = null; try { Integer cId = Integer.parseInt(clzId); Student s = adminService.getStudentById(stuId); Course c = adminService.getCourseById(cId); if (s != null && c != null) { if(c.getAmount()>c.getSelected()) { int rst = studentService.selectCource(stuId, cId); if (rst==0) { msg = "添加成功"; } else if(rst==1){ msg = "已经选过此课!"; } else if(rst==2){ msg="该课程已选满!"; }else{ msg="未知错误!"; } } }else{ msg="添加失败"; } } catch (Exception e) { msg = "添加失败"; e.printStackTrace(); } finally {
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| */ private String append(String url, String key, String value) { if (url == null || url.trim().length() == 0) { return ""; } if (url.indexOf("?") == -1) { url = url + "?" + key + "=" + value; } else { if (url.endsWith("?")) { url = url + key + "=" + value; } else { url = url + "&" + key + "=" + value; } } return url; }
private String resolveUrl(String url, javax.servlet.jsp.PageContext pageContext) throws JspException { Map params = pageContext.getRequest().getParameterMap(); for (Object key : params.keySet()) { if ("page".equals(key) || "rows".equals(key)){ continue; } Object value = params.get(key); if (value == null){ continue; } if (value.getClass().isArray()) { url = append(url, key.toString(), ((String[]) value)[0]); } else if (value instanceof String) { url = append(url, key.toString(), value.toString()); } } return url; } public String getBean() { return bean; } public void setBean(String bean) { this.bean = bean; } public String getUrl() { return url; } public void setUrl(String url) {
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——————————PayStart——————————
项目链接:
https://javayms.github.io?id=161422282105200cq
https://javayms.pages.dev?id=161422282105200cq