Java项目：ssm在线答题系统

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文末获取源码

ssm在线答题系统

技术框架

使用SSM+Vue的形式来实现，SSM框架用于处理后台的数据逻辑，Vue框架用于前端的数据显示

系统分为客户端，管理端

注意事项

1 数据库文件在一级目录下，命名为answerWeb.sql，部署时，需要在answerWeb/config/dbconfig.properties配置文件中配置好数据库
2 管理端用户表为'admins'表
3 客户端用户表为'user'表，用户端登录页登录帐号为邮箱
4 管理端，在创建题目时，在选择完图片后，图片会立即上传到百度云BOS对象存储中（需要在util包的BOSUtil工具类你的BOS对象存储），未点击添加题目时，此时试题的资源（图片，视频）是在BOS的临时文件夹下（在QuestionController类定义路径），当点击添加题目后，会把此试题的资源添加到目标文件夹下（在QuestionController类定义路径），临时文件夹下的东西可以设置任务调度器进行定时删除，防止浪费BOS存储空间。

5 项目的jar包除了用maven管理外，有一部分jar需要手动导入（answerWeb/WebRoot/WEB-INF/lib）

运行截图

相关代码

管理员登入

package cn.edu.lingnan.controller;import java.util.Map;import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;import cn.edu.lingnan.pojo.Admins;
import cn.edu.lingnan.service.AdminsService;@Controller
public class AdminController extends BaseController {@Autowiredprivate AdminsService adminsService;/*** 管理员登入* @param admins* @param map* @author lizhi*/@RequestMapping("/adminLogin")public String adminLogin(Admins admins,Map<String,Object> map){if(adminsService.login(admins).size()<=0){map.put("loginError", "帐号或密码错误");return "/admin/login";}super.session.setAttribute("admins", adminsService.login(admins).get(0));return "redirect:/selectUserByExample";}/*** 更新管理员资料（修改密码）* @param admins* @author lizhi*/@RequestMapping("/changeAdminPassword")public String changeAdminPassword(Admins admins){adminsService.updateSelective(admins);return "redirect:/selectUserByExample";}/*** 注销* @return*/@RequestMapping("/logout")public String logout(){session.invalidate();return "/admin/login";}}

获取题目基础类型

package cn.edu.lingnan.controller;import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;import cn.edu.lingnan.pojo.Options;
import cn.edu.lingnan.pojo.Question;
import cn.edu.lingnan.pojo.QuestionOption;
import cn.edu.lingnan.pojo.QuestionType;
import cn.edu.lingnan.pojo.User;
import cn.edu.lingnan.pojo.WeChatUser;
import cn.edu.lingnan.service.AnswerService;@Controller
public class AnswerController extends BaseController {public static final int QUESTION_NUMBER = 10;@Autowiredprivate AnswerService answerService;/*** @author huang* 获取题目基础类型*/@ResponseBody@RequestMapping(value="user/getType")public Map<String, Object> getQuestionType() {Map<String, Object> map = new HashMap<String, Object>();List<QuestionType> firstlist = answerService.findType();if (firstlist.size() <= 0) {map.put("error", "系统错误：一级菜单获取失败");} else {map.put("firstlist", firstlist);}return map;}/*** @author huang* 获取题目具体类型*/@ResponseBody@RequestMapping(value="user/getType/{id}")public Map<String, Object> getQuestionType(@PathVariable int id) {Map<String, Object> map = new HashMap<String, Object>();List<QuestionType> secondlist = answerService.findType(id);if (secondlist.size() <= 0) {map.put("error", id);} else {//判断是否为3级菜单List<QuestionType> thirdList = answerService.findType(secondlist.get(0).getTypeno());if(thirdList.size() <= 0) map.put("grade", "two");else map.put("grade", "third");map.put("secondlist", secondlist);}return map;}/*** @author huang* 根据类型获取题目*/@ResponseBody@RequestMapping(value="user/getQuestion/{typeno}")public Map<String, Object> getQuestion(@PathVariable int typeno) {Map<String, Object> map = new HashMap<String, Object>();List<Question> questionList = answerService.getQuestionByType(typeno);List<QuestionOption> questionOptionsList = new ArrayList<QuestionOption>();for (Question q : questionList) {List<Options> optionlist = answerService.getOptionsByQuestion(q.getQuestionno());QuestionOption questionOption = new QuestionOption(q,optionlist);questionOptionsList.add(questionOption);}map.put("question",questionOptionsList);map.put("maxnumber", QUESTION_NUMBER);map.put("title", answerService.getQuestionTypeByID(typeno).getTypename());return map;}/*** @author huang* 用户答题更新记录*/@RequestMapping(value="user/refreshRecord/{typeno}/{status}")public void refreshRecord(@PathVariable int typeno, @PathVariable int status){User user = (User) super.session.getAttribute("user");WeChatUser weuser = (WeChatUser) super.session.getAttribute("weChatUser");if (user != null)answerService.answerRecord(user.getUserno(), typeno, status, 0);else if (weuser != null)answerService.answerRecord(weuser.getWechatuserno(), typeno, status, 1);}
}

可根据条件分页查询所有候选答案

package cn.edu.lingnan.controller;import java.util.List;
import java.util.Map;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.RequestParam;import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;import cn.edu.lingnan.pojo.Options;
import cn.edu.lingnan.pojo.OptionsExample;
import cn.edu.lingnan.service.OptionsService;@Controller
public class OptionsController extends BaseController {@Autowiredprivate OptionsService optionsService;/*** 可根据条件分页查询所有候选答案* @return* @author lizhi*/@RequestMapping("/selectOptions")public String selectOptions(OptionsExample options, Map<String, Object> map,@RequestParam(value = "pn", defaultValue = "1") Integer pn) {// 每页显示八条数据，且当前页是参数pnPageHelper.startPage(pn, 8);List<Options> list = optionsService.selectOptionsByExample(options);// 对数据进行分页处理PageInfo pageInfo = new PageInfo(list);map.put("optionsListPageInfo", pageInfo);// 到时候前端写出网页后再修改到具体的页面return "admin/index";}/*** 更新候选答案* @return* @author lizhi*/@RequestMapping("/updateOptions")public String updateOptions(Options options){optionsService.updateByPrimaryKey(options);return "admin/index";}}

QuestionController

package cn.edu.lingnan.controller;import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ThreadLocalRandom;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.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;import cn.edu.lingnan.pojo.Options;
import cn.edu.lingnan.pojo.OptionsList;
import cn.edu.lingnan.pojo.Question;
import cn.edu.lingnan.pojo.TempUrl;
import cn.edu.lingnan.service.OptionsService;
import cn.edu.lingnan.service.QuestionService;
import cn.edu.lingnan.service.QuestionTypeService;
import cn.edu.lingnan.service.TempUrlService;
import cn.edu.lingnan.utils.BOSUtil;@Controller
public class QuestionController extends BaseController {@Autowiredprivate QuestionService questionService;@Autowiredprivate QuestionTypeService questionTypeService;@Autowiredprivate OptionsService optionsService;@Autowiredprivate TempUrlService tempUrlService;/*** 分页根据条件查找试题* @param question* @param map* @param pn* @author lizhi*/@RequestMapping("/selectQuestion")public String selectQuestion(Question question, Map<String, Object> map,@RequestParam(value = "pn", defaultValue = "1") Integer pn,@RequestParam("toid")Integer toid) {// 每页显示八条数据，且当前页是参数pnPageHelper.startPage(pn, 6);List<Question> list = questionService.selectQuestionByExample(question);// 对数据进行分页处理PageInfo pageInfo = new PageInfo(list);map.put("pageInfo", pageInfo);//找出所有三级菜单类型，返回到前端多条件选择map.put("questionTypeList",questionTypeService.getAllQuestionType());//在选项卡一中显示map.put("toid", toid);// 到时候前端写出网页后再修改到具体的页面return "/admin/questionList";}/*** 更新试题第一步* @param question* @author lizhi*/@RequestMapping("/updateQuestionFirst")public String updateQuestionFirst(@RequestParam("questionno")Integer questionno,Map<String,Object> map,@RequestParam("pn") Integer pn){//找出具体题目map.put("question",questionService.getQuestionByKey(questionno));//找出题目的候选答案map.put("optionsList",optionsService.getQuestionOptions(questionno));//找出所有三级菜单类型，返回到更新页面map.put("questionTypeList",questionTypeService.getAllQuestionType());map.put("pn",pn);return "/admin/updateQuestion";}/*** 更新试题第二步* @param question* @param pn* @author lizhi*/@RequestMapping("/updateQuestionSecond")public String updateQuestionSecond(Question question,@RequestParam("pn") Integer pn,OptionsList optionsList,String oldContent,String oldDescription){//如果不同文件名，就要移动if(!question.getContent().equals(oldContent)){String strExtension = question.getContent().substring(question.getContent().lastIndexOf('.') + 1);String path = "/resource/images/question/";if(strExtension.equals("mp3")){path = "/resource/audio/";//将文件从临时文件夹移动到目标文件夹BOSUtil.moveFile("/temp/"+question.getContent(),path+question.getContent());}else if(strExtension.equals("mp4")){path = "/resource/video/";//将文件从临时文件夹移动到目标文件夹BOSUtil.moveFile("/temp/"+question.getContent(),path+question.getContent());}else if(strExtension.equals("jpg")||strExtension.equals("gif") ||strExtension.equals("png") || strExtension.equals("bmp")){//将文件从临时文件夹移动到目标文件夹BOSUtil.moveFile("/temp/"+question.getContent(),path+question.getContent());}}//如果不同文件名，就要删除原来的if(!question.getContent().equals(oldContent)){//把原来的文件删除String path="";String oldExtension = oldContent.substring(oldContent.lastIndexOf('.') + 1);String oldpath = "/resource/images/question/";if(oldExtension.equals("mp3")){path = "/resource/audio/";BOSUtil.deleteFile(path+oldContent);}else if(oldExtension.equals("mp4")){path = "/resource/video/";BOSUtil.deleteFile(path+oldContent);}else if(oldExtension.equals("jpg")||oldExtension.equals("gif") || oldExtension.equals("png") || oldExtension.equals("bmp")){BOSUtil.deleteFile(path+oldContent);}}//对答案图片进行更新if(question.getDesstatus()==2){if(!question.getDescription().equals(oldDescription)){String path = "/resource/images/answer/";//移动答案图片BOSUtil.moveFile("/temp/"+question.getDescription(),path+question.getDescription());//删除原来的答案图片BOSUtil.deleteFile(path+oldDescription);}}questionService.updateSelective(question);for(Options options:optionsList.getOptionsList()){optionsService.updateByPrimaryKey(options);}redirectAttributes.addAttribute("pn",pn);redirectAttributes.addAttribute("toid",1);return "redirect:/selectQuestion";}/*** 上传题目的图片，视频，音频* @param file* @param typename* @return* @throws IllegalStateException* @throws IOException*/@ResponseBody@RequestMapping(value = "/addQuestionFile", produces = "text/html;charset=UTF-8")public String addQuestionFile(@RequestParam(value = "file", required = false) MultipartFile file,@RequestParam(value="desFile",required=false) MultipartFile desFile,@RequestParam(value="flag",required=false) Integer flag ) throws IllegalStateException, IOException {if(flag == 1){/* String strExtension = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf('.') + 1);String path = "/resource/images/question/";if(strExtension.equals("mp3")){path = "/resource/audio/";}else if(strExtension.equals("mp4")){path = "/resource/video/";}*/// fileName唯一性int a = ThreadLocalRandom.current().nextInt(100,999);String fileName =+ a +"-"+ System.currentTimeMillis()+ file.getOriginalFilename();//上传到临时文件夹String typeImagesTempPath = "/temp/"+fileName;BOSUtil.upload(file, typeImagesTempPath);//插入上传记录SimpleDateFormat format = new SimpleDateFormat("yyyyMMddhhmmss");TempUrl tempUrl = new TempUrl(null,fileName,format.format(new Date()));tempUrlService.addTempUrl(tempUrl);return fileName;//这是答案详解图片的预览}else if(flag == 2){String path = "/resource/images/answer/";// fileName唯一性int a = ThreadLocalRandom.current().nextInt(100,999);String fileName =+ a +"-"+ System.currentTimeMillis()+ desFile.getOriginalFilename();//上传到临时文件夹String typeImagesTempPath = "/temp/"+fileName;BOSUtil.upload(desFile, typeImagesTempPath);//插入上传记录SimpleDateFormat format = new SimpleDateFormat("yyyyMMddhhmmss");TempUrl tempUrl = new TempUrl(null,fileName,format.format(new Date()));tempUrlService.addTempUrl(tempUrl);return fileName;}return "error";}/*** 增加试题* @param question* @author lizhi* @throws IOException * @throws IllegalStateException */@RequestMapping("/addQuestion")public String addQuestion(Question question,OptionsList optionsList,@RequestParam("pn") Integer pn) throws IllegalStateException, IOException{String strExtension = question.getContent().substring(question.getContent().lastIndexOf('.') + 1);String path = "/resource/images/question/";if(strExtension.equals("mp3")){path = "/resource/audio/";//将文件从临时文件夹移动到目标文件夹BOSUtil.moveFile("/temp/"+question.getContent(),path+question.getContent());}else if(strExtension.equals("mp4")){path = "/resource/video/";//将文件从临时文件夹移动到目标文件夹BOSUtil.moveFile("/temp/"+question.getContent(),path+question.getContent());}else if(strExtension.equals("jpg") || strExtension.equals("gif") || strExtension.equals("png") || strExtension.equals("bmp")){//将文件从临时文件夹移动到目标文件夹BOSUtil.moveFile("/temp/"+question.getContent(),path+question.getContent());}//移动答案图片if(question.getDesstatus()==2){String desImapgePath = "/resource/images/answer/";//移动答案图片BOSUtil.moveFile("/temp/"+question.getDescription(),desImapgePath+question.getDescription());}//插入数据库questionService.insertQuestion(question);for(Options options:optionsList.getOptionsList()){options.setQuestionno(question.getQuestionno());optionsService.insert(options);}redirectAttributes.addAttribute("pn",pn);redirectAttributes.addAttribute("toid",1);return "redirect:/selectQuestion";}/*** 根据试题id删除试题* @param id* @author lizhi*//*@RequestMapping(value="/deleteQuestion/{id}",method=RequestMethod.DELETE)public String deleteQuestion(@PathVariable(value="id") Integer id){questionService.deleteQuestion(id);return "/admin/index";}*//*** 根据试题id删除试题* @param id* @author lizhi*/@RequestMapping(value="/deleteQuestion")public String deleteQuestion(@RequestParam("questionno") Integer questionno,@RequestParam("pn") Integer pn){Question question = questionService.getQuestionByKey(questionno);questionService.deleteQuestion(questionno);redirectAttributes.addAttribute("pn", pn);redirectAttributes.addAttribute("toid",1);//删除题目内容对应的资源if(question.getConstatus()!=1){String contentExtension = question.getContent().substring(question.getContent().lastIndexOf('.') + 1);String path = "/resource/images/question/";if(contentExtension.equals("mp3")){path = "/resource/audio/";BOSUtil.deleteFile(path+question.getContent());}else if(contentExtension.equals("mp4")){path = "/resource/video/";BOSUtil.deleteFile(path+question.getContent());}else if(contentExtension.equals("jpg") || contentExtension.equals("gif") || contentExtension.equals("png") || contentExtension.equals("bmp")){BOSUtil.deleteFile(path+question.getContent());}}//删除题目答案对应的资源if(question.getDesstatus()==2){BOSUtil.deleteFile("/resource/images/answer/"+question.getDescription());}return "redirect:/selectQuestion";}}

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