AllController
package com.example.academicadministration.controller;
import com.example.academicadministration.service.StudentService;
import com.example.academicadministration.service.TeacherService;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import lombok.SneakyThrows;
import org.apache.ibatis.annotations.Param;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class AllController {
@SneakyThrows
@RequestMapping("/login")
public void login(String id, String pwd, String kind, @Param("sub") String sub, HttpServletRequest request, HttpServletResponse response){
if (sub==null||sub.equals("注册")){
switch (kind){
case "student":
request.getRequestDispatcher("/student/toRegister").forward(request,response);
return;
case "teacher":
request.getRequestDispatcher("/teacher/toRegister").forward(request,response);
return;
default:
response.getWriter().print("管理员无法被注册");
return;
}
}
else {
switch (kind){
case "student":
request.getRequestDispatcher("/student/login").forward(request,response);
return;
case "teacher":
request.getRequestDispatcher("/teacher/login").forward(request,response);
return;
case "manger":
request.getRequestDispatcher("/manger/login").forward(request,response);
return;
}
}
}
@RequestMapping("/weclome")
public String weclome(){
return "weclome";
}
}
MangerController
package com.example.academicadministration.controller;
import com.example.academicadministration.pojo.Course;
import com.example.academicadministration.pojo.Student;
import com.example.academicadministration.pojo.Teacher;
import com.example.academicadministration.service.CourseService;
import com.example.academicadministration.service.MangerService;
import com.example.academicadministration.service.StudentService;
import com.example.academicadministration.service.TeacherService;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import lombok.SneakyThrows;
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.ResponseBody;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.math.BigInteger;
import java.security.MessageDigest;
import java.util.*;
@Controller
@RequestMapping("/manger")
public class MangerController {
@Autowired
private CourseService courseService;
@Autowired
private StudentService studentService;
@Autowired
private TeacherService teacherService;
@Autowired
private MangerService mangerService;
private Boolean check(Object o){
return o==null||o.equals("");
}
@SneakyThrows
private String getImg(byte[] im){
BufferedImage img= ImageIO.read(new ByteArrayInputStream(im));
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ImageIO.write(img,"png",baos);
byte[] encodedBytes = Base64.getEncoder().encode(baos.toByteArray());
String encodedImage = new String(encodedBytes);
String imgSrc="data:image/png;base64,"+encodedImage;
return imgSrc;
}
@SneakyThrows
@ResponseBody
@RequestMapping("/login")
public String login(String id, String pwd,HttpServletRequest request){
String res=mangerService.login(id);
MessageDigest md = MessageDigest.getInstance("MD5");
md.update(pwd.getBytes());
String Hpwd=new BigInteger(1,md.digest()).toString(16);
if(res==null){
return "用户不存在";
}
else if(!res.equals(Hpwd)){
return "密码错误";
}
else {
request.getSession().setAttribute("mangerid",id);
return "登录成功";}
}
@RequestMapping("/function")
public String function(Model model){
return "/manger/mangerFunction";
}
@RequestMapping("/toChangePwd")
public String toChangePwd(){
return "/manger/changePwd";
}
@SneakyThrows
@ResponseBody
@RequestMapping("/changePwd")
public String changePwd(String oldpwd, String newpwd1, HttpServletRequest request){
if(check(newpwd1)){
return "密码不能为空字符";
}
if(mangerService.reset((String) request.getSession().getAttribute("mangerid"),oldpwd,newpwd1)) {
return "修改成功";
}
else {
return "密码错误";
}
}
@SneakyThrows
@RequestMapping("/browseStudent")
public String browseStudent(Model model,String condition){
if(!check(condition)) condition="%"+condition+"%";
else condition="%%";
List<Student> studentList=studentService.browseStudent(condition);
Map<String,String> stuImg=new HashMap<>();
for(Student i:studentList){
if(i.getStuphoto()==null||i.getStuphoto().length<1){
stuImg.put(i.getStuid(),null);
continue;
}
stuImg.put(i.getStuid(),getImg(i.getStuphoto()));
}
model.addAttribute("stuList",studentList);
model.addAttribute("stuImg",stuImg);
return "/manger/browseStudent";
}
@SneakyThrows
@RequestMapping("/auditStudent")
public void auditStudent(String stuid,HttpServletResponse response){
if(studentService.auditStudent(stuid)){
response.getWriter().print("<script>alert('激活成功');location.replace('/manger/browseStudent')</script>");
}
else {
response.getWriter().print("<script>alert('激活失败');location.replace('/manger/browseStudent')</script>");
}
}
@SneakyThrows
@RequestMapping("/inauditStudent")
public void inauditStudent(String stuid,HttpServletResponse response){
if(studentService.inauditStudent(stuid)){
response.getWriter().print("<script>alert('冻结成功');location.replace('/manger/browseStudent')</script>");
}
else {
response.getWriter().print("<script>alert('冻结失败');location.replace('/manger/browseStudent')</script>");
}
}
@SneakyThrows
@RequestMapping("/auditTeacher")
public void auditTeacher(String teaid,HttpServletResponse response){
if(teacherService.auditTeacher(teaid)){
response.getWriter().print("<script>alert('激活成功');location.replace('/manger/browseTeacher')</script>");
}
else {
response.getWriter().print("<script>alert('激活失败');location.replace('/manger/browseTeacher')</script>");
}
}
@SneakyThrows
@RequestMapping("/inauditTeacher")
public void inauditTeacher(String teaid,HttpServletResponse response){
if(teacherService.inauditTeacher(teaid)){
response.getWriter().print("<script>alert('冻结成功');location.replace('/manger/browseTeacher')</script>");
}
else {
response.getWriter().print("<script>alert('冻结失败');location.replace('/manger/browseTeacher')</script>");
}
}
@SneakyThrows
@RequestMapping("/studentDetail")
public String studentDetail(String stuid, Model model){
List<Student> students=studentService.browseStudent("%%");
for (Student i:students){
if(i.getStuid().equals(stuid)){
model.addAttribute("stu",i);
if(i.getStuphoto()!=null&&i.getStuphoto().length>0)
model.addAttribute("Img",getImg(i.getStuphoto()));
else model.addAttribute("Img",null);
break;
}
}
return "/manger/studentDetail";
}
@SneakyThrows
@RequestMapping("/deleteStudent")
public void deleteStudent(String stuid,HttpServletResponse response){
if(studentService.deleteStudent(stuid)){
response.getWriter().print("<script>alert('删除成功');location.replace('/manger/browseStudent')</script>");
}
else {
response.getWriter().print("<script>alert('删除失败');location.replace('/manger/browseStudent')</script>");
}
}
@SneakyThrows
@RequestMapping("/resetStudent")
public void resetStudent(String stuid,String stupwd,String newpwd,HttpServletResponse response){
if(studentService.reset(stuid,stupwd,"123456")){
response.getWriter().print("<script>alert('重置成功');location.replace('/manger/browseStudent')</script>");
}
else {
response.getWriter().print("<script>alert('重置失败');location.replace('/manger/browseStudent')</script>");
}
}
@SneakyThrows
@RequestMapping("/browseTeacher")
public String browseTeacher(String condition,Model model){
if(!check(condition)) condition="%"+condition+"%";
else condition="%%";
List<Teacher> teaList=teacherService.browseTeacher(condition);
Map<String,String> teaImg=new HashMap<>();
for(Teacher i:teaList){
if(i.getTeaphoto()==null||i.getTeaphoto().length<1){
teaImg.put(i.getTeaid(),null);
continue;
}
teaImg.put(i.getTeaid(),getImg(i.getTeaphoto()));
}
model.addAttribute("teaList",teaList);
model.addAttribute("teaImg",teaImg);
return "/manger/browseTeacher";
}
@RequestMapping("/teacherDetail")
public String teacherDetail(String teaid,Model model){
List<Teacher> teachers=teacherService.browseTeacher("%%");
for (Teacher i:teachers){
if(i.getTeaid().equals(teaid)){
model.addAttribute("tea",i);
if(i.getTeaphoto()!=null&&i.getTeaphoto().length>0)
model.addAttribute("Img",getImg(i.getTeaphoto()));
else model.addAttribute("Img",null);
break;
}
}
return "/manger/teacherDetail";
}
@SneakyThrows
@RequestMapping("/deleteTeacher")
public void deleteTeacher(String teaid,HttpServletResponse response){
if(teacherService.deleteTeacher(teaid)){
response.getWriter().print("<script>alert('删除成功');location.replace('/manger/browseTeacher')</script>");
}
else {
response.getWriter().print("<script>alert('删除失败');location.replace('/manger/browseTeacher')</script>");
}
}
@SneakyThrows
@RequestMapping("/resetTeacher")
public void resetTeacher(String teaid,String teapwd,String newpwd,HttpServletResponse response){
if(teacherService.reset(teaid,teapwd,"123456")){
response.getWriter().print("<script>alert('重置成功');location.replace('/manger/browseTeacher')</script>");
}
else {
response.getWriter().print("<script>alert('重置失败');location.replace('/manger/browseTeacher')</script>");
}
}
@SneakyThrows
@ResponseBody
@RequestMapping("/addCourse")
public String addCourse(Course course){
if(courseService.addCourse(course)){
return "添加成功";
}
else {
return "添加失败";
}
}
@SneakyThrows
@RequestMapping("/addTeacherCourse")
public void addTeacherCourse(String teaid,String courseid,HttpServletResponse response){
if(courseService.addTeacherCourse(teaid,courseid)){
response.getWriter().print("<script>alert('添加成功');location.replace('/manger/browseCourse')</script>");
}
else {
response.getWriter().print("<script>alert('添加失败');location.replace('/manger/browseCourse')</script>");
}
}
@SneakyThrows
@RequestMapping("/browseCourse")
public String browseCourse(String condition,String teaCondition,Model model){
Boolean flag=check(teaCondition)? false:true;
if(!check(condition)) condition="%"+condition+"%";
else condition="%%";
if(!check(teaCondition)) teaCondition="%"+teaCondition+"%";
else teaCondition="%%";
List<Course> courses=courseService.browseCourse(condition);
List<Teacher> teachers=teacherService.browseTeacher("%%");
List<Course> courseList=new ArrayList<>();
for (Course i:courses){
for(Teacher j:teachers){
if(courseService.checkTeacher(String.valueOf(i.getCourseid()),j.getTeaid())){
i.setTeacher(j);
}
}
}
if(flag){
List<Teacher> teachers1=teacherService.browseTeacher(teaCondition);
for(Course i:courses){
if(teachers1.contains(i.getTeacher())){
courseList.add(i);
}
}
model.addAttribute("courseList",courseList);
}
else {
model.addAttribute("courseList",courses);
}
model.addAttribute("teachers",teachers);
return "/manger/browseCourse";
}
@SneakyThrows
@RequestMapping("/deleteCourse")
public void deleteCourse(String courseid,HttpServletResponse response){
if(courseService.deleteCourse(courseid)){
response.getWriter().print("<script>alert('删除成功');location.replace('/manger/browseCourse')</script>");
}
else {
response.getWriter().print("<script>alert('删除失败');location.replace('/manger/browseCourse')</script>");
}
}
}
StudentController
package com.example.academicadministration.controller;
import com.example.academicadministration.pojo.*;
import com.example.academicadministration.service.*;
import com.example.academicadministration.utils.SendMessage;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import lombok.SneakyThrows;
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.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.math.BigInteger;
import java.security.MessageDigest;
import java.sql.Timestamp;
import java.util.*;
@Controller
@RequestMapping("/student")
public class StudentController {
private int hid;
@Autowired
private StudentService studentService;
@Autowired
private CourseService courseService;
@Autowired
private TeacherService teacherService;
@Autowired
private VideoService videoService;
@Autowired
private HomeworkService homeworkService;
@Autowired
private AnswerService answerService;
private Boolean check(Object o){
return o==null||o.equals("");
}
@SneakyThrows
private String getImg(byte[] im){
BufferedImage img= ImageIO.read(new ByteArrayInputStream(im));
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ImageIO.write(img,"png",baos);
byte[] encodedBytes = Base64.getEncoder().encode(baos.toByteArray());
String encodedImage = new String(encodedBytes);
String imgSrc="data:image/png;base64,"+encodedImage;
return imgSrc;
}
@SneakyThrows
@ResponseBody
@RequestMapping("/login")
public String login(String id, String pwd, HttpServletRequest request){
MessageDigest md = MessageDigest.getInstance("MD5");
md.update(pwd.getBytes());
String Hpwd=new BigInteger(1,md.digest()).toString(16);
List<Student> students=studentService.browseStudent("%%");
for(Student i:students){
if(i.getStuid().equals(id)){
if(i.getStupwd().equals(Hpwd)){
if (i.getStustate()){
i.setStupwd(pwd);
request.getSession().setAttribute("StudentPerson",i);
if(i.getStuphoto()!=null&&i.getStuphoto().length>0){
request.getSession().setAttribute("StudentPersonImg",getImg(i.getStuphoto()));
}
else request.getSession().setAttribute("StudentPersonImg",null);
return "登录成功";
}
return "账号未激活";
}
return "密码错误";
}
}
return "没有该用户";
}
@RequestMapping("/toRegister")
public String toRegister(){
return "student/studentRegister";
}
@SneakyThrows
@ResponseBody
@RequestMapping("/register")
public String register(Student student,MultipartFile photo){
if(photo!=null&&!photo.isEmpty())
student.setStuphoto(photo.getBytes());
else student.setStuphoto(null);
if(studentService.addStudent(student)){
return "注册成功";
}
else{
return "注册失败";
}
}
@SneakyThrows
@ResponseBody
@RequestMapping("/getFlag")
public String getFlag(String phone){
String flag= SendMessage.message(phone);
return flag;
}
@RequestMapping("/function")
public String function(){
return "/student/studentFunction";
}
@RequestMapping("/toChangePwd")
public String toChangePwd(){
return "/student/changePwd";
}
@SneakyThrows
@ResponseBody
@RequestMapping("/changePwd")
public String changePwd(String oldpwd,String newpwd1,HttpServletRequest request){
MessageDigest md = MessageDigest.getInstance("MD5");
md.update(oldpwd.getBytes());
String Hpwd=new BigInteger(1,md.digest()).toString(16);
if(check(newpwd1)){
return "密码不能为空字符";
}
Student t=(Student) request.getSession().getAttribute("StudentPerson");
if(studentService.reset(t.getStuid(),Hpwd,newpwd1)) {
return "修改成功";
}
else {
return "密码错误";
}
}
@RequestMapping("/detail")
public String detail(Model model,HttpServletRequest request){
Student i=(Student)request.getSession().getAttribute("StudentPerson");
model.addAttribute("stu",i);
if(i.getStuphoto()!=null&&i.getStuphoto().length>0)
model.addAttribute("Img",getImg(i.getStuphoto()));
else model.addAttribute("Img",null);
return "/student/studentDetail";
}
@SneakyThrows
@RequestMapping("/browseCourse")
public String browseCourse(String condition,String teaCondition,Model model){
Boolean flag=check(teaCondition)? false:true;
if(!check(condition)) condition="%"+condition+"%";
else condition="%%";
if(!check(teaCondition)) teaCondition="%"+teaCondition+"%";
else teaCondition="%%";
List<Course> courses=courseService.browseCourse(condition);
List<Teacher> teachers=teacherService.browseTeacher("%%");
List<Course> courseList=new ArrayList<>();
for (Course i:courses){
for(Teacher j:teachers){
if(courseService.checkTeacher(String.valueOf(i.getCourseid()),j.getTeaid())){
i.setTeacher(j);
}
}
}
if(flag){
List<Teacher> teachers1=teacherService.browseTeacher(teaCondition);
for(Course i:courses){
if(teachers1.contains(i.getTeacher())){
courseList.add(i);
}
}
model.addAttribute("courseList",courseList);
}
else {
model.addAttribute("courseList",courses);
}
model.addAttribute("teachers",teachers);
return "/student/browseCourse";
}
@SneakyThrows
@RequestMapping("/addStudentCourse")
public void addStudentCourse(String courseid,HttpServletResponse response,HttpServletRequest request){
Student i=(Student)request.getSession().getAttribute("StudentPerson");
List<Course> courses=courseService.myCourse(i.getStuid());
for(Course j:courses){
if(String.valueOf(j.getCourseid()).equals(courseid)){
response.getWriter().print("<script>alert('已有该课程');location.replace('/student/browseCourse')</script>");
return;
}
}
if(courseService.addStudentCourse(i.getStuid(),courseid)&&courseService.addNum(courseid)){
response.getWriter().print("<script>alert('选课成功');location.replace('/student/browseCourse')</script>");
}
else {
response.getWriter().print("<script>alert('选课失败');location.replace('/student/browseCourse')</script>");
}
}
@RequestMapping("/myCourse")
public String myCourse(Model model,HttpServletRequest request){
Student i=(Student)request.getSession().getAttribute("StudentPerson");
List<Course> courses=courseService.myCourse(i.getStuid());
List<Teacher> teachers=teacherService.browseTeacher("%%");
Map<Integer,String> score=new HashMap<>();
for(Course j:courses) {
String sc=courseService.browseScore(i.getStuid(), String.valueOf(j.getCourseid()));
if(sc.equals("-1")){
score.put(j.getCourseid(),null);
}
else score.put(j.getCourseid(), sc);
for (Teacher k : teachers) {
if (courseService.checkTeacher(String.valueOf(j.getCourseid()), k.getTeaid())) {
j.setTeacher(k);
}
}
}
model.addAttribute("courseList",courses);
model.addAttribute("score",score);
return "/student/myCourse";
}
@SneakyThrows
@RequestMapping("/deleteStudentCourse")
public void deleteSelection(String courseid,HttpServletResponse response,HttpServletRequest request){
Student i=(Student)request.getSession().getAttribute("StudentPerson");
if(courseService.deleteStudentCourse(i.getStuid(),courseid)&&courseService.deleteNum(courseid)){
response.getWriter().print("<script>alert('退课成功');location.replace('/student/myCourse')</script>");
}
else {
response.getWriter().print("<script>alert('退课失败');location.replace('/student/myCourse')</script>");
}
}
@SneakyThrows
@RequestMapping("/browseVideo")
public String browseMaterial(String courseid,String condition,Model model,HttpServletRequest request){
if(courseid==null) courseid= (String) request.getSession().getAttribute("courseid");
else request.getSession().setAttribute("courseid",courseid);
if(condition==null) condition="%%";
else condition="%"+condition+"%";
List<Video> videoList=videoService.browseVideo(condition);
Map<Integer,String> videoImg=new HashMap<>();
for(Video i:videoList){
videoImg.put(i.getVideoid(),getImg(i.getVideocover()));
}
model.addAttribute("videoList",videoList);
model.addAttribute("videoImg",videoImg);
return "/student/browseVideo";
}
@SneakyThrows
@RequestMapping("/browseHomework")
public String browseHomework(String courseid,String kind,Model model,HttpServletRequest request){
if(courseid==null) courseid=(String) request.getSession().getAttribute("courseid");
else request.getSession().setAttribute("courseid",courseid);
List<Homework> homeworkList=new ArrayList<>();
if(check(kind)||kind.equals("0")){
homeworkList=homeworkService.browseHomeworkAll(courseid);
}
else if(kind.equals("1")){
homeworkList=homeworkService.browseHomework1(courseid);
}
else if(kind.equals("2")){
homeworkList=homeworkService.browseHomework2(courseid);
}
model.addAttribute("homeworkList",homeworkList);
return "/student/browseHomework";
}
@SneakyThrows
@RequestMapping("/homeworkDetail")
public String homeworkDetail(String homeworkid,String index,HttpServletRequest request,Model model){
if(homeworkid==null) homeworkid=(String) request.getSession().getAttribute("homeworkid");
else request.getSession().setAttribute("homeworkid",homeworkid);
model.addAttribute("index",index);
String courseid=(String) request.getSession().getAttribute("courseid");
Student stu=(Student)request.getSession().getAttribute("StudentPerson");
String stuid=stu.getStuid();
List<Homework> homeworkList=homeworkService.browseHomeworkAll(courseid);
for(Homework i:homeworkList){
if(homeworkid.equals(String.valueOf(i.getHomeworkid()))){
model.addAttribute("homework",i);
model.addAttribute("homeworkImg",getImg(i.getHomeworkfile()));
break;
}
}
Answer answer=answerService.myAnswer(stuid,homeworkid);
model.addAttribute("answer",answer);
if (answer!=null)
model.addAttribute("answerImg",getImg(answer.getAnswerfile()));
return "/student/homeworkDetail";
}
@ResponseBody
@SneakyThrows
@RequestMapping("/addAnswer")
public String addAnswer(Answer answer,MultipartFile answerImg,HttpServletRequest request){
String homeworkid=(String) request.getSession().getAttribute("homeworkid");
answer.setAnswerfile(answerImg.getBytes());
Student stu=(Student)request.getSession().getAttribute("StudentPerson");
String stuid=stu.getStuid();
answer.setStuid(stuid);
answer.setHomeworkid(Integer.valueOf(homeworkid));
answer.setAnswerfile(answerImg.getBytes());
answer.setScore(-1);
Timestamp timestamp = new Timestamp(System.currentTimeMillis());
answer.setSubmittime(timestamp);
if(answerService.addAnswer(answer)){
return "上传成功";
}
else {
return "上传失败";
}
}
@ResponseBody
@SneakyThrows
@RequestMapping("/updateAnswer")
public String updateAnswer(Answer answer,MultipartFile answerImg,HttpServletRequest request){
String homeworkid=(String) request.getSession().getAttribute("homeworkid");
answer.setAnswerfile(answerImg.getBytes());
Student stu=(Student)request.getSession().getAttribute("StudentPerson");
String stuid=stu.getStuid();
answer.setStuid(stuid);
answer.setHomeworkid(Integer.valueOf(homeworkid));
answer.setAnswerfile(answerImg.getBytes());
Timestamp timestamp = new Timestamp(System.currentTimeMillis());
answer.setSubmittime(timestamp);
if(answerService.updateAnswer(answer)){
return "上传成功";
}
else {
return "上传失败";
}
}
}
TeacherController
package com.example.academicadministration.controller;
import com.example.academicadministration.pojo.*;
import com.example.academicadministration.service.*;
import com.example.academicadministration.utils.SendMessage;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import lombok.SneakyThrows;
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.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.math.BigInteger;
import java.security.MessageDigest;
import java.time.LocalDate;
import java.util.*;
@Controller
@RequestMapping("/teacher")
public class TeacherController {
@Autowired
private TeacherService teacherService;
@Autowired
private CourseService courseService;
@Autowired
private StudentService studentService;
@Autowired
private VideoService videoService;
@Autowired
private HomeworkService homeworkService;
@Autowired
private AnswerService answerService;
private Boolean check(Object o){
return o==null||o.equals("");
}
@SneakyThrows
private String getImg(byte[] im){
BufferedImage img= ImageIO.read(new ByteArrayInputStream(im));
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ImageIO.write(img,"png",baos);
byte[] encodedBytes = Base64.getEncoder().encode(baos.toByteArray());
String encodedImage = new String(encodedBytes);
String imgSrc="data:image/png;base64,"+encodedImage;
return imgSrc;
}
@SneakyThrows
private String getVideo(byte[] vid,String kind){
String filename= String.valueOf(UUID.nameUUIDFromBytes(vid));
File file=File.createTempFile(filename,kind);
FileOutputStream fos=new FileOutputStream((file));
fos.write(vid);
fos.close();
System.out.println("文件名字:"+filename+kind);
return filename;
}
@SneakyThrows
@ResponseBody
@RequestMapping("/login")
public String login(String id, String pwd, HttpServletRequest request){
MessageDigest md = MessageDigest.getInstance("MD5");
md.update(pwd.getBytes());
String Hpwd=new BigInteger(1,md.digest()).toString(16);
List<Teacher> teachers=teacherService.browseTeacher("%%");
for(Teacher i:teachers){
if(i.getTeaid().equals(id)) {
if(i.getTeapwd().equals(Hpwd)){
if(i.getTeastate()){
i.setTeapwd(pwd);
request.getSession().setAttribute("TeacherPerson",i);
if(i.getTeaphoto()!=null&&i.getTeaphoto().length>0){
request.getSession().setAttribute("TeacherPersonImg",getImg(i.getTeaphoto()));
}
else request.getSession().setAttribute("TeacherPersonImg",null);
return "登录成功";
}
else return "账号未激活";
}
else return "密码错误";
}
}
return "没用该用户";
}
@RequestMapping("/toRegister")
public String toRegister(){
return "/teacher/teacherRegister";
}
@SneakyThrows
@ResponseBody
@RequestMapping("/register")
public String register(Teacher teacher,MultipartFile photo){
if(photo!=null&&!photo.isEmpty())
teacher.setTeaphoto(photo.getBytes());
else teacher.setTeaphoto(null);
if(teacherService.addTeacher(teacher)){
return "注册成功";
}
else{
return "注册失败";
}
}
@ResponseBody
@RequestMapping("/getFlag")
public String getFlag(String phone){
String flag= SendMessage.message(phone);
return flag;
}
@RequestMapping("/function")
public String function(){
return "/teacher/teacherFunction";
}
@RequestMapping("/toChangePwd")
public String toChangePwd(){
return "/teacher/changePwd";
}
@SneakyThrows
@ResponseBody
@RequestMapping("/changePwd")
public String changePwd(String oldpwd,String newpwd1,HttpServletRequest request){
MessageDigest md = MessageDigest.getInstance("MD5");
md.update(oldpwd.getBytes());
String Hpwd=new BigInteger(1,md.digest()).toString(16);
if(check(newpwd1)){
return "密码不能为空字符";
}
Teacher t=(Teacher) request.getSession().getAttribute("TeacherPerson");
if(teacherService.reset(t.getTeaid(),Hpwd,newpwd1)) {
return "修改成功";
}
else {
return "密码错误";
}
}
@RequestMapping("/detail")
public String detail(Model model,HttpServletRequest request){
Teacher i=(Teacher) request.getSession().getAttribute("TeacherPerson");
model.addAttribute("tea",i);
if(i.getTeaphoto()!=null&&i.getTeaphoto().length>0){
model.addAttribute("Img",getImg(i.getTeaphoto()));
}
else model.addAttribute("Img",null);
return "/teacher/teacherDetail";
}
@RequestMapping("/myCourse")
public String myCourse(Model model,HttpServletRequest request){
Teacher i=(Teacher) request.getSession().getAttribute("TeacherPerson");
List<Course> courses=courseService.TmyCourse(i.getTeaid());
model.addAttribute("courseList",courses);
return "/teacher/myCourse";
}
@SneakyThrows
@RequestMapping("/myStudent")
public String myStudnet(Model model,String courseid,HttpServletRequest request){
if(courseid==null) courseid= (String) request.getSession().getAttribute("courseid");
else request.getSession().setAttribute("courseid",courseid);
List<Student> studentList=studentService.myStudent(courseid);
Map<String,String> stuImg=new HashMap<>();
Map<String,String> score=new HashMap<>();
for(Student i:studentList){
String sc=courseService.browseScore(i.getStuid(),courseid);
if(sc.equals("-1")){
score.put(i.getStuid(),null);
}
else {
score.put(i.getStuid(),sc);
}
if(i.getStuphoto()==null||i.getStuphoto().length<1){
stuImg.put(i.getStuid(),null);
continue;
}
stuImg.put(i.getStuid(),getImg(i.getStuphoto()));
}
model.addAttribute("stuList",studentList);
model.addAttribute("stuImg",stuImg);
model.addAttribute("score",score);
model.addAttribute("courseid",courseid);
return "/teacher/myStudent";
}
@SneakyThrows
@RequestMapping("/updateScore")
public void updateGrade(String stuid,String courseid,String coursescore,HttpServletResponse response){
response.setCharacterEncoding("GBK");
if(courseService.updateScore(coursescore,stuid,courseid)){
response.getWriter().print("<script>alert('登分成功');location.replace('/teacher/myStudent')</script>");
}
else response.getWriter().print("<script>alert('登分失败');location.replace('/teacher/myStudent')</script>");
}
@ResponseBody
@SneakyThrows
@RequestMapping("/addVideo")
public String addVideo(Video video,MultipartFile videoImg,MultipartFile videos,HttpServletRequest request){
int courseid=Integer.valueOf((String) request.getSession().getAttribute("courseid"));
video.setCourseid(courseid);
if(videoImg!=null&&!videoImg.isEmpty()){
video.setVideocover(videoImg.getBytes());
}
if(videos!=null&&!videos.isEmpty()){
String filename= String.valueOf(UUID.randomUUID())+videos.getOriginalFilename().substring(videos.getOriginalFilename().lastIndexOf("."));
video.setVideofile(filename);
videos.transferTo(new File("D:\\JavaProject\\AcademicAdministration\\src\\main\\resources\\static\\video\\"+filename));
}
video.setVideotime(LocalDate.now());
if(videoService.addVideo(video)){
return "添加成功";
}
else {
return "添加失败";
}
}
@SneakyThrows
@RequestMapping("/browseVideo")
public String browseMaterial(String courseid,String condition,Model model,HttpServletRequest request){
if(courseid==null) courseid= (String) request.getSession().getAttribute("courseid");
else request.getSession().setAttribute("courseid",courseid);
if(condition==null) condition="%%";
else condition="%"+condition+"%";
List<Video> videoList=videoService.browseVideo(condition);
Map<Integer,String> videoImg=new HashMap<>();
for(Video i:videoList){
videoImg.put(i.getVideoid(),getImg(i.getVideocover()));
}
model.addAttribute("videoList",videoList);
model.addAttribute("videoImg",videoImg);
return "/teacher/browseVideo";
}
@SneakyThrows
@RequestMapping("/videoDetail")
public String videoDetail(String videoid,Model model,HttpServletResponse response){
List<Video> videoList=videoService.browseVideo("%%");
Video video=null;
for(Video i:videoList) {
if (videoid.equals(String.valueOf(i.getVideoid()))) {
video = i;
break;
}
}
response.getWriter().print("<video id='v' src='/"+video.getVideofile()+"' controls>视频</video>");
model.addAttribute("video",video);
return "/teacher/videoDetail";
}
@SneakyThrows
@RequestMapping("/deleteVideo")
public void deleteVideo(String videoid,HttpServletResponse response){
response.setCharacterEncoding("GBK");
if(videoService.deleteVideo(videoid)){
response.getWriter().print("<script>alert('删除成功');location.replace('/teacher/browseVideo')</script>");
}
else {
response.getWriter().print("<script>alert('删除失败');location.replace('/teacher/browseVideo')</script>");
}
}
@SneakyThrows
@ResponseBody
@RequestMapping("/addHomework")
public String addHomework(Homework homework,MultipartFile workfile, HttpServletRequest request){
int courseid=Integer.valueOf((String) request.getSession().getAttribute("courseid"));
homework.setCourseid(courseid);
homework.setHomeworkfile(workfile.getBytes());
if(homeworkService.addHomework(homework)){
return "添加成功";
}
else {
return "添加失败";
}
}
@SneakyThrows
@RequestMapping("/browseHomework")
public String browseHomework(String courseid,String kind,Model model,HttpServletRequest request){
if(courseid==null) courseid=(String) request.getSession().getAttribute("courseid");
else request.getSession().setAttribute("courseid",courseid);
List<Homework> homeworkList=new ArrayList<>();
if(check(kind)||kind.equals("0")){
homeworkList=homeworkService.browseHomeworkAll(courseid);
}
else if(kind.equals("1")){
homeworkList=homeworkService.browseHomework1(courseid);
}
else if(kind.equals("2")){
homeworkList=homeworkService.browseHomework2(courseid);
}
List<Student> studentList=studentService.myStudent(courseid);
HashMap<Integer,Integer> solveNum=new HashMap<>();
for(Homework i:homeworkList){
int num=0;
for(Student j:studentList){
if(answerService.myAnswer(j.getStuid(), String.valueOf(i.getHomeworkid()))!=null) num++;
}
solveNum.put(i.getHomeworkid(),num);
}
model.addAttribute("homeworkList",homeworkList);
model.addAttribute("solveNum",solveNum);
model.addAttribute("allNum",studentList.size());
return "/teacher/browseHomework";
}
@SneakyThrows
@RequestMapping("/homeworkDetail")
public String homeworkDetail(String homeworkid,String index,Model model,HttpServletRequest request){
String courseid=(String) request.getSession().getAttribute("courseid");
if (check(homeworkid)) homeworkid= (String) request.getSession().getAttribute("Hid");
else request.getSession().setAttribute("Hid",homeworkid);
if (check(index)) index=(String) request.getSession().getAttribute("Index");
else request.getSession().setAttribute("Index",index);
model.addAttribute("index",index);
List<Student> studentList=studentService.myStudent(courseid);
List<Homework> homeworkList=homeworkService.browseHomeworkAll(courseid);
HashMap<String,String> stuImg=new HashMap<>();
HashMap<String,String> answerImg=new HashMap<>();
for(Homework i:homeworkList){
if(homeworkid.equals(String.valueOf(i.getHomeworkid()))) {
model.addAttribute("homework", i);
model.addAttribute("homeworkImg",getImg(i.getHomeworkfile()));
for(Student j:studentList){
j.setMyAnswer(answerService.myAnswer(j.getStuid(),homeworkid));
if(!check(j.getStuphoto()))
stuImg.put(j.getStuid(),getImg(j.getStuphoto()));
else stuImg.put(j.getStuid(),null);
if(j.getMyAnswer()!=null){
answerImg.put(j.getStuid(),getImg(j.getMyAnswer().getAnswerfile()));
}
}
break;
}
}
model.addAttribute("studentList",studentList);
model.addAttribute("stuImg",stuImg);
model.addAttribute("answerImg",answerImg);
return "/teacher/homeworkDetail";
}
@SneakyThrows
@RequestMapping("/deleteHomework")
public void deleteHomework(String homeworkid,HttpServletResponse response){
response.setCharacterEncoding("GBK");
if(homeworkService.deleteHomework(homeworkid)){
response.getWriter().print("<script>alert('删除成功');location.replace('/teacher/browseHomework')</script>");
}
else {
response.getWriter().print("<script>alert('删除失败');location.replace('/teacher/browseHomework')</script>");
}
}
@SneakyThrows
@RequestMapping("/updateHScore")
public void updateHScore(String homeworkid,String stuid,String score,HttpServletResponse response){
response.setCharacterEncoding("GBK");
if (check(score)) {
response.getWriter().print("<script>alert('分数不能为空');location.replace('/teacher/homeworkDetail')</script>");
return;
}
Answer answer=new Answer();
answer.setScore(Integer.parseInt(score));
answer.setStuid(stuid);
answer.setHomeworkid(Integer.parseInt(homeworkid));
if(answerService.updateScore(answer)){
response.getWriter().print("<script>alert('判分成功');location.replace('/teacher/homeworkDetail')</script>");
}
else {
response.getWriter().print("<script>alert('判分失败');location.replace('/teacher/homeworkDetail')</script>");
}
}
}
