基于java语言SSM框架，在线考试系统

package cn.ganiner.controller; import cn.ganiner.pojo.Exam.*; import cn.ganiner.pojo.Student; import cn.ganiner.pojo.Teacher; import cn.ganiner.service.ExamService; import cn.ganiner.service.StudentService; import cn.ganiner.service.TeacherService; import cn.ganiner.service.UserService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.ResponseBody; import java.util.*; @Controller @RequestMapping("/exam/") public class ExamController { @Autowired private TeacherService teacherService; @Autowired private ExamService examService; @Autowired private UserService userService; @Autowired private StudentService studentService; @RequestMapping(value = "addexam.do") public String addexam(Model model){ List<Teacher> teachers = userService.findTeacherAll(); model.addAttribute("teacher",teachers); return "page/teacher/addexam"; } @RequestMapping(value = "adminaddexam.do") public String AdminAddExam(Model model){ List<Teacher> teachers = userService.findTeacherAll(); model.addAttribute("teacher",teachers); return "page/admin/addexam"; } /** * 添加考试 * @param examInformation * @return */ @RequestMapping(value = "examadd.do") public String examadd(ExamInformation examInformation){ examService.CreateExam(examInformation); List<PaperJudge>paperJudges = examService.RandJudge((long) examInformation.getJudgenum(),examInformation.getChaptertwo(),examInformation.getDifficulty()); List<PaperChoice>paperChoices = examService.RandChoice((long) examInformation.getChoicenum(),examInformation.getChaptertwo(),examInformation.getDifficulty()); for (int i = 0;i<paperChoices.size();i++){ paperChoices.get(i).setExamid(examInformation.getId()); } examService.insertRandChoice(paperChoices); for (int i = 0;i<paperJudges.size();i++){ paperJudges.get(i).setExamid(examInformation.getId()); } examService.insertRandJudge(paperJudges); return "redirect:examall.do"; } /** * 添加选择题 * @param examInformation * @return */ @RequestMapping(value = "adminexamadd.do") public String Adminexamadd(ExamInformation examInformation){ examService.CreateExam(examInformation); List<PaperJudge>paperJudges = examService.RandJudge((long) examInformation.getJudgenum(),examInformation.getChaptertwo(),examInformation.getDifficulty()); List<PaperChoice>paperChoices = examService.RandChoice((long) examInformation.getChoicenum(),examInformation.getChaptertwo(),examInformation.getDifficulty()); for (int i = 0;i<paperChoices.size();i++){ paperChoices.get(i).setExamid(examInformation.getId()); } examService.insertRandChoice(paperChoices); for (int i = 0;i<paperJudges.size();i++){ paperJudges.get(i).setExamid(examInformation.getId()); } examService.insertRandJudge(paperJudges); return "redirect:allexam.do"; } /** * 所有的考试 * @param model * @return */ @RequestMapping(value = "examall.do") public String ExamAll(Model model){ List<ExamInformation>examInfos = examService.AllExam(); model.addAttribute("examInfo",examInfos); return "page/teacher/exam_info"; } /** * 考试详情 * @param examid * @param model * @return */ @RequestMapping(value = "detail.do") public String ExamDetail(@RequestParam int examid, Model model){ List<PaperChoice>paperChoices = examService.AllPaperChoice(examid); List<PaperJudge>paperJudges = examService.AllPaperJudge(examid); ExamInformation examInformations = examService.findById(examid); model.addAttribute("choice",paperChoices); model.addAttribute("judge",paperJudges); model.addAttribute("examinfo",examInformations); return "page/teacher/exam_detail"; } @RequestMapping(value = "admindetail.do") public String AdminExamDetail(@RequestParam int examid, Model model){ List<PaperChoice>paperChoices = examService.AllPaperChoice(examid); List<PaperJudge>paperJudges = examService.AllPaperJudge(examid); ExamInformation examInformations = examService.findById(examid); model.addAttribute("choice",paperChoices); model.addAttribute("judge",paperJudges); model.addAttribute("examinfo",examInformations); return "page/admin/exam_detail"; } /** * 删除考题 * @param examid * @return */ @RequestMapping(value = "deleteexam.do") public String DeleteExam(@RequestParam int examid){ examService.DeletePaperChoice(examid); examService.DeletePaperJudge(examid); examService.DeleteExamInfo(examid); return "redirect:examall.do"; } @RequestMapping(value = "admindeleteexam.do") public String AdminDeleteExam(@RequestParam int examid){ examService.DeletePaperChoice(examid); examService.DeletePaperJudge(examid); examService.DeleteExamInfo(examid); return "redirect:allexam.do"; } /** * 管理员查询 * @param model * @return */ @RequestMapping(value = "allexam.do") public String AllExam(Model model){ List<ExamInformation>examInfos = examService.AllExam(); model.addAttribute("examInfo",examInfos); return "page/admin/exam_info"; } /** * 根据考试id查询所有参加过考试的学生 * @param examid * @param model * @return */ @RequestMapping(value = "allexamstu.do") public String AllExamStu(@RequestParam int examid, Model model){ Map<Long, Long> map = new HashMap<>(); List<ExamHistory>examHistories = examService.ByExamId(examid); List<Long>longList = new ArrayList<Long>(); List<Student>students = new ArrayList<Student>(); for(int i = 0;i < examHistories.size();i++){ map.put(examHistories.get(i).getStudentid(),examHistories.get(i).getScore()); longList.add(examHistories.get(i).getStudentid()); } if(longList.isEmpty()){ students.add(null); } else { students = studentService.AllStudent(longList); for (int i = 0; i < examHistories.size(); i++) { students.get(i).setId(map.get(students.get(i).getId())); } Collections.sort(students, new Comparator<Student>() { public int compare(Student p1, Student p2) { if (p1.getId() < p2.getId()) { return 1; } if (p1.getId() == p2.getId()) { return 0; } return -1; } }); } model.addAttribute("student",students); return "page/admin/exam_allstudent"; } /** * 老师页根据考试id查询所有参加过考试的学生 * @param examid * @param model * @return */ @RequestMapping(value = "allstuexam.do") public String AllStuExam(@RequestParam int examid, Model model){ Map<Long, Long> map = new HashMap<>(); List<ExamHistory>examHistories = examService.ByExamId(examid); List<Long>longList = new ArrayList<Long>(); List<Student>students = new ArrayList<Student>(); for(int i = 0;i < examHistories.size();i++){ map.put(examHistories.get(i).getStudentid(),examHistories.get