java控制台-学生选课管理系统(高分期末大作业)

package user; import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileWriter; import java.io.IOException; import java.io.InputStreamReader; import java.util.Scanner; import course.Course; import inputErr.UsrInput; public class User { public String name; //用户名 public String pwd; //密码 public User() {} /** * 显示用户信息 */ public void showInfo() { System.out.println(name+":"+pwd); } /** * 设置用户密码 */ public void changePwd() { System.out.print("输入原密码:"); String originalPwd = UsrInput.getString(); if (originalPwd.equals(this.pwd)) while(true) { System.out.print("输入新的密码(6-12位):"); String pwd = UsrInput.getString(); System.out.print("确认密码:"); String pwd2 = UsrInput.getString(); if (pwd.length()>=6 && pwd.length()<=12 && pwd.equals(pwd2)) { this.pwd = pwd; System.out.println("密码修改成功..."); break; } else { continue; } } else { System.out.println("原密码不正确..."); } } public User login() { // get admin pwd for .txt file User.getAdminInfo(); System.out.print("输入管理员密码:"); String pwd = UsrInput.getString(); if (pwd.equals(AdminUsers.admin.pwd)) { System.out.println(AdminUsers.admin.name + ", 欢迎您!"); return AdminUsers.admin; //成功 } else { System.out.println("登陆失败，密码错误..."); return null; //失败 } } public static void getAdminInfo() { File f = new File("admin pwd.txt"); try { if (!f.exists()) f.createNewFile(); BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(f.getAbsoluteFile()))); String info = null; if ((info=br.readLine())==null) { AdminUsers.admin.name = "admin"; //管理员初始名称 AdminUsers.admin.pwd = "123456"; //管理员初始密码123456 } else { String info_[] = info.split(" "); AdminUsers.admin.name = info_[0]; AdminUsers.admin.pwd = info_[1]; } br.close(); } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } public static void saveAdminInfo() { try { BufferedWriter out = new BufferedWriter(new FileWriter("admin pwd.txt")); out.write(AdminUsers.admin.name + " " + AdminUsers.admin.pwd); // write password out.flush(); out.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } public void adminMenu() { int choice=0, innerChoice=0; while (true) { System.out.println("1.管理课程\n2.管理教师\n3.管理学生\n4.修改管理员密码\n5.修改管理员名称\n0.退出"); choice = UsrInput.getInt(); switch(choice) { case 1: do { innerChoice=User.adminCourseMenu(); if (innerChoice!=0) User.funcDistribute(innerChoice); } while (innerChoice!=0); break; case 2: do { innerChoice=User.adminTchMenu(); if (innerChoice!=0) User.funcDistribute(innerChoice); } while (innerChoice!=0); break; case 3: do { innerChoice=User.adminStuMenu(); if (innerChoice!=0) User.funcDistribute(innerChoice); } while (innerChoice!=0); break; case 4: AdminUsers.admin.changePwd(); break; case 5: User.changeAdminName(); break; case 0: Course.saveTofile(); // 保存所有课程信息 User.saveStuInfo(); User.saveTchInfo(); return; default: break; } } } public static void changeAdminName() { System.out.print("输入新的管理员名称:"); String newAdminName = UsrInput.getString(); AdminUsers.admin.name = newAdminName; System.out.println("名称修改成功..."); } public static void funcDistribute(int funcId) { switch (funcId) { case 1: Course.addCourses(); break; case 2: Course.deleteCourses(); break; case 3: Course.setCourseTeacher(); break; case 4: Course.showAllCourses(); break; case 5: Course.sortCourses(); break; case 6: User.addTeachers(); break; case 7: User.deleteTeachers(); break; case 8: Course.searchCourseByTeacher(); break; case 9: AdminUsers.showAllTcher(); break; case 10: User.resetPwd(1); break; case 11: User.addStudents(); break; case 12: User.deleteStudents(); break; case 13: AdminUsers.showAllStudent(); break; case 14: User.resetPwd(0); break; default: } } public static int adminCourseMenu() { System.out.println("选择功能:\n1.添加课程\n2.删除课程\n" + "3.设置课程教师\n4.显示课程列表\n5.按选课人数排序\n" + "0.退出"); while (true) { int choice = UsrInput.getInt(); if (choice==0) return 0; else if (choice>=1 && choice<=5) return choice; } } public static int adminTchMenu() { System.out.println("选择功能:\n1.添加教师\n2.删除教师\n" + "3.查看教师所授课程\n4.显示教师列表\n" + "5.教师密码恢复\n0.退出"); while (true) { int choice = UsrInput.getInt(); if (choice==0) return 0; else if (choice>=1 && choice<=5) return choice+5; } } public static int adminStuMenu() { System.out.println("选择功能:\n1.添加学生\n2.删除学生\n" + "3.查看学生列表\n" + "4.学生密码恢复\n0.退出"); while (true) { int choice = UsrInput.getInt(); if (choice==0) return 0; else if (choice>=1 && choice<=4) return choice+10; } } public static void addTeacher() { System.out.print("姓名:"); String name = UsrInput.getString(); System.out.print("工号:"); int workId = UsrInput.getInt(); System.out.print("职位:"); String occupation = UsrInput.getString(); AdminUsers.t.add(new Teacher(name, "123456", workId, occupation)); } public static void addTeachers() { while(true) { User.addTeacher(); System.out.print("教师信息添加成功，是否继续添加？（y/n）"); if (UsrInput.getString().equals("y")) continue; else break; } } public static boolean deleteTeacher() { System.out.print("输入要删除的教师信息工号:"); int objTeacher = UsrInput.getInt(); Teacher tmp = null; for (int i=0; i<AdminUsers.t.size(); ++i) if ((tmp=AdminUsers.t.get(i)).getWorkId()==objTeacher) { AdminUsers.t.remove(i); // 删除教师信息 //首先级联置空其教授的课程 for (Course c : Course.courseSet) if (c.teacher.equals(tmp.name)) c.teacher = "---"; return true; } return false; } public static void deleteTeachers() { if (AdminUsers.t==null || AdminUsers.t.size()==0) { System.out.println("暂无任何教师信息..."); return; //空 } while(true) { if (User.deleteTeacher()) System.out.print("教师信息删除成功，是否继续删除？（y/n）"); else System.out.print("删除失败，无匹配的教师信息...\n输入y继续删除，输入n退出:"); if (UsrInput.getString().equals("y")) { continue; } else break; } } public static void addStudent() { System.out.print("姓名:"); String name = UsrInput.getString(); System.out.print("学号:"); int stuId = UsrInput.getInt(); System.out.print("班级:"); String class_ = UsrInput.getString(); AdminUsers.s.add(new Student(name, "123456", stuId, class_)); } public static void addStudents() { while(true) { User.addStudent(); System.out.print("学生信息添加成功，是否继续添加？（y/n）"); if (UsrInput.getString().equals("y")) continue; else break; } } public static boolean deleteStudent() { System.out.print("输入要删除的学生信息学号:"); int objStu = UsrInput.getInt(); Student tmp = null; for (int i=0; i<AdminUsers.s.size(); ++i) if (objStu==(tmp=AdminUs