基于javaweb学生就业管理系统的设计与实现（论文+程序设计+数据库文件）

package com.project.controller; import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper; import com.baomidou.mybatisplus.core.metadata.IPage; import com.baomidou.mybatisplus.extension.api.R; import com.baomidou.mybatisplus.extension.plugins.pagination.Page; import com.mysql.cj.util.StringUtils; import com.project.entity.Company; import com.project.entity.Teacher; import com.project.entity.User; import com.project.entity.Work; import com.project.service.CompanyService; import com.project.service.StudentService; import com.project.service.TeacherService; import com.project.service.UserService; import com.project.service.WorkService; import com.project.uitls.Constant; import io.swagger.annotations.ApiImplicitParam; import io.swagger.annotations.ApiOperation; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Value; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PostMapping; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.RestController; import org.springframework.web.multipart.MultipartFile; import javax.servlet.http.HttpSession; import java.io.File; import java.util.ArrayList; import java.util.Date; import java.util.List; import java.util.Random; import static com.project.enums.UserRole.*; import static com.project.uitls.Constant.CURRENT_USER; @RestController @RequestMapping("/user") public class UserController { @Autowired private UserService userService; @Autowired private CompanyService companyService; @Autowired private TeacherService teacherService; @Autowired private StudentService studentService; @Autowired private WorkService workService; @Autowired private HttpSession session; @Value("${upload}") private String upload; @ApiOperation("获取验证码") @GetMapping("/getVerificationCode") public Object getVerificationCode() { String[] codes = {"a", "b", "c", "d", "e", "f", "g", "h", "i", "j","k", "m", "n", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"}; List<String> randomCodes = new ArrayList<>(); StringBuilder codeStr = new StringBuilder(); for (int i = 0; i < 4; i++) { String code = codes[Math.abs(new Random().nextInt() % codes.length)]; randomCodes.add(code); codeStr.append(code); } session.setAttribute(Constant.CODE, codeStr.toString()); return R.ok(randomCodes); } @GetMapping("/getById") @ApiOperation("根据id获取用户") @ApiImplicitParam(value = "用户id", required = true) public Object getById(Integer id) { User user = userService.getById(id); return user == null ? R.failed("该用户不存在") : R.ok(user); } @GetMapping("/deleteById") @ApiOperation("根据id删除用户") public Object deleteById(@RequestParam Integer id) { boolean b = userService.removeById(id); return b ? R.ok(null) : R.failed("删除失败"); } @RequestMapping("/save") public Object save(User user) { if (user.getId() == null) { userService.save(user); }else { userService.updateById(user); } return R.ok(null); } @PostMapping("/updateById") @ApiOperation("根据id更用户") public Object updateById(@RequestBody User user) { if (!StringUtils.isNullOrEmpty(user.getUserName())) { QueryWrapper<User> queryWrapper = new QueryWrapper<>(); queryWrapper.lambda().eq(User::getUserName, user.getUserName()); List<User> users = userService.list(queryWrapper); for (User u : users) { if (!u.getId().equals(user.getId())) return R.failed("该用户已存在"); } } boolean b = userService.updateById(user); return b ? R.ok(null) : R.failed("更新失败"); } @GetMapping("/addCompany") public Object addCompany(@RequestParam String userName, @RequestParam String password, @RequestParam String phone, @RequestParam String role, @RequestParam String name) { User user = registerUser(userName, password, phone, COMPANY); Company company = new Company(); company.setUid(user.getId()); company.setContactsPhone(phone); company.setName(name); return companyService.save(company) ? R.ok(null) : R.failed("添加失败"); } @PostMapping("/addTeacher") public Object addTeacher(@RequestBody Teacher teacher) { User user = registerUser(teacher.getName(), PASSWORD, teacher.getPhone(), STUDENT); teacher.setUid(user.getId()); return teacherService.save(teacher) ? R.ok(null) : R.failed("添加失败"); } @PostMapping("/addWork") public Object addWork(@RequestBody Work work) { User user = registerUser(work.getLeaderNumber(), PASSWORD, work.getPhone(), STUDENT); work.setUid(user.getId()); return workService.save(work) ? R.ok(null) : R.failed("添加失败"); } @GetMapping("/getUserPage") @ApiOperation("获取用户分页") public Object getUserPage(@RequestParam Integer pageNum, @RequestParam Integer pageSize, User user, Date beginTime, Date endTime) { QueryWrapper<User> queryWrapper = new QueryWrapper<>(); queryWrapper.lambda() .like(!StringUtils.isNullOrEmpty(user.getUserName()), User::getUserName, user.getUserName()) .like(user.getStatus() != null, User::getStatus, user.getStatus()) .like(!StringUtils.isNullOrEmpty(user.getEmail()), User::getEmail, user.getEmail()) .like(!StringUtils.isNullOrEmpty(user.getPhone()), User::getPhone, user.getPhone()); IPage<User> page = userService.page(new Page<>(pageNum, pageSize), queryWrapper); return R.ok(page); } @RequestMapping("/login") @ApiOperation("登录") public Object login(User user) { QueryWrapper<User> queryWrapper = new QueryWrapper<>(); queryWrapper.lambda().eq(User::getUserName, user.getUserName()).eq(User::getPassword, user.getPassword()); List<User> users = userService.list(queryWrapper); if (users.isEmpty()) return R.failed("用户名或密码错误"); User currentUser = users.get(0); userService.updateById(currentUser); session.setAttribute(CURRENT_USER, currentUser); return R.ok(currentUser); } @GetMapping("/logout") @ApiOperation("登出") public Object logout() { session.removeAttribute(CURRENT_USER); return R.ok(null); } @PostMapping("/resetPassword") @ApiOperation("重置密码, 默认密码000000") public Object resetPassword(@RequestParam Integer userId, String password) { if (StringUtils.isNullOrEmpty(password)) password = "000000"; User user = new User(); user.setId(userId); user.setPassword(password); boolean b = userService.updateById(user); return b ? R.ok(null) : R.failed("重置失败"); } @PostMapping("/updatePassword") @ApiOperation("修改密码") public Object updatePassword(@RequestParam Integer userId, @RequestParam String oldPassword, @RequestParam Stri