Java实现火车票预订系统的代码怎么写

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一、项目运行

环境配置：

Jdk1.8 + Tomcat8.5 + mysql + Eclispe（IntelliJ IDEA,Eclispe,MyEclispe,Sts都支持）

项目技术：

JSP + Servlert + html+ css + JavaScript + JQuery + Ajax 等等；

二、效果图

三、核心代码

个人中心Controller

/** * 个人中心Controller */@Controllerpublic class UserInforController {            @Autowired    private UserInforServiceImpl userInforService = null;     /**     * 修改密码操作     * @param oldPassword     * @param newPassword     * @param rePassword     * @param httpSession     * @return     */    @RequestMapping("changePassword.do")    @ResponseBody    public Map changePassword(String oldPassword, String newPassword,                                              String rePassword, HttpSession httpSession){        HashMap map = new HashMap();        if (newPassword.equals(rePassword)){            SystemManager admin = (SystemManager) httpSession.getAttribute("admin");            String encodeByMD5 = MD5Utils.encodeByMD5(oldPassword);            if (encodeByMD5.equals(admin.getSmPassword())){                String newPasswords = MD5Utils.encodeByMD5(newPassword);                admin.setSmPassword(newPasswords);                userInforService.updateSystemManagePassword(admin.getSmId(),admin);                map.put("type","success");                map.put("msg","密码修改成功");                return map;            }else{                map.put("type","error");                map.put("msg","原密码错误");                return map;            }        }else{            map.put("type","error");            map.put("msg","两次密码不一致");            return map;        }    }        /**     * 员工修改个人密码     * @param oldPassword     * @param newPassword     * @param rePassword     * @param httpSession     * @return     */    @RequestMapping("changeEmployeePassword.do")    @ResponseBody    public Map changeEmployeePassword(String oldPassword, String newPassword,                                              String rePassword, HttpSession httpSession){        HashMap map = new HashMap();        if (newPassword.equals(rePassword)){            Integer eid = (Integer) httpSession.getAttribute("employeeId");            try {                userInforService.updateEmployeePassword(eid, oldPassword, newPassword);                map.put("type","success");                map.put("msg","密码修改成功");                return map;            } catch (CustomException e) {                map.put("type","error");                map.put("msg","原密码错误");                return map;            }        }else{            map.put("type","error");            map.put("msg","两次密码不一致");            return map;        }    }     /**     * 查看个人信息     * @param httpSession     * @return     */    @RequestMapping("inforEmployee.do")    public @ResponseBody EmployeeCustomVo getInforEmployee(HttpSession httpSession){        Integer id = (Integer) httpSession.getAttribute("employeeId");        EmployeeCustomVo employeeCustomVo = userInforService.getInforEmployee(id);        return employeeCustomVo;    }     /**     * 修改个人信息     * @param httpSession     * @param employee     * @return     */    @ResponseBody    @RequestMapping("updateInforEmployee.do")    public Message updateInforEmployee(HttpSession httpSession, Employee employee){        Integer id = (Integer) httpSession.getAttribute("employeeId");        employee.seteId(id);        if(userInforService.updateEmploueeById(id,employee)<=0) {                return Message.error("修改信息失败");        }       return Message.success();    }       /**     * 个人工资信息     * @param pageNum     * @param limit     * @param year     * @param httpSession     * @return     * @throws Exception     */    @RequestMapping("employeeSalaryList.do")    @ResponseBody    public EmployeeSalaryVO findSelective(            @RequestParam(value="page", defaultValue="1")int pageNum,            @RequestParam(value="limit", defaultValue="10") int limit,            @RequestParam(value="year", defaultValue="1") String year,            HttpSession httpSession) throws Exception {         Integer eId = (Integer) httpSession.getAttribute("employeeId");        //pageNum:起始页面  pageSize:每页的大小        PageHelper.startPage(pageNum,limit);        //查找条件，一定要紧跟在startPage后        List salaryList = userInforService.getEmployeeSalaryList(eId, year);         PageInfo pageResult = new PageInfo(salaryList);         //设置前台需要的数据        EmployeeSalaryVO employeeSalaryVO = new EmployeeSalaryVO();        employeeSalaryVO.setCode(0);        employeeSalaryVO.setMsg("");        employeeSalaryVO.setCount((int) pageResult.getTotal());        employeeSalaryVO.setData(pageResult.getList());        return employeeSalaryVO;    } }

管理员和员工登陆控制

/** * @Author: admin * @Description: 管理员和员工登陆控制 **/@Controllerpublic class LoginController {    @Autowired    private LoginServiceImpl loginService = null;    /**     * @Author: admin     * @Description: 验证码变更     * @Date: 14:33 2021/10/5     * @Param: [request, response]     * @Return: void     **/    @RequestMapping(value = "/changeCode.do")    @ResponseBody    public void getIdentifyingCode(HttpServletRequest request, HttpServletResponse response)            throws ServletException, IOException    {        // 验证码存储在session的identifyingCode，属性中        CaptchaUtil.outputCaptcha(request, response);    }     // 获取员工登陆界面    @RequestMapping("/")    public String getLoginPage(){        return "employee/login.html";    }     // 获取管理员登陆界面    @RequestMapping("/admin.do")    public String getAdminLoginPage(HttpServletRequest request){            String realPath = request.getServletContext().getRealPath("/");            request.getSession().setAttribute("realPath", realPath);        return "admin/adminLogin.html";    }            /**     * 员工登录操作     * @param model     * @param httpSession     * @param username     * @param password     * @param identifyingcode     * @return     */    @RequestMapping(value = "/employeeLogin.do")    @ResponseBody    public Message employeeLogin(HttpSession httpSession, String username,                             String password, String identifyingcode)    {            if(StringUtils.isEmpty(username)) {                    return Message.error("请填写工号");            }            if(StringUtils.isEmpty(password)) {                    return Message.error("请填写密码");            }            if(StringUtils.isEmpty(identifyingcode)) {                    return Message.error("请填写验证码");            }        String code = (String) httpSession.getAttribute("identifyingCode");        if(!identifyingcode.equalsIgnoreCase(code)){                return Message.error("验证码错误");          }        Employee employee = loginService.findEmployeeByIdAndPassword(username, password);        if(employee==null) {                return Message.error("工号或密码错误");                        }         httpSession.setAttribute("employeeId",employee.geteId());       return Message.success("员工登录成功");    }     @RequestMapping(value = "/loginSuccess.do")    public String loginSucceses(Model model) throws Exception    {        return "employee/index.html";    }     /**     * 管理员登录操作     * @param model     * @param httpSession     * @param username     * @param password     * @param identifyingcode     * @return     */    @RequestMapping(value = "/adminLogin.do")    @ResponseBody    public Message adminLogin(HttpSession httpSession, String username,                                            String password, String identifyingcode)    {                    if(StringUtils.isEmpty(username)) {                    return Message.error("请填写账号");            }            if(StringUtils.isEmpty(password)) {                    return Message.error("请填写密码");            }            if(StringUtils.isEmpty(identifyingcode)) {                    return Message.error("请填写验证码");            }        String code = (String) httpSession.getAttribute("identifyingCode");        if(identifyingcode.equalsIgnoreCase(code)){            SystemManager manager = loginService.findSystemManagerByIdAndPassword(username, password);           if(manager==null) {                   return Message.error("账号或密码错误");           }            // 保存到session            httpSession.setAttribute("admin",manager);            return Message.success("登录成功");        }else {                return Message.error("验证码错误");        }    }    @RequestMapping(value = "/getAdminAccount.do")    @ResponseBody    public String getAdminAccount(HttpSession httpSession){        SystemManager systemManager = (SystemManager) httpSession.getAttribute("admin");//        SystemManager manager = loginService.findSystemManagerById(id);        return systemManager.getSmAccount();    }     @RequestMapping(value = "/getEmployeeAccount.do")    @ResponseBody    public Map getEmployeeAccount(HttpSession httpSession){        Integer id = (Integer) httpSession.getAttribute("employeeId");        Employee employee = loginService.findEmployeeById(id);        HashMap map = new HashMap();        map.put("account",employee.geteAccount());        map.put("name",employee.geteName());        return map;    }    @RequestMapping(value = "/logout.do")    public String logout(HttpSession httpSession){        httpSession.removeAttribute("employeeId");        return "redirect:/";    }     @RequestMapping(value = "/logoutAdmin.do")    public String logoutAdmin(HttpSession httpSession){       httpSession.removeAttribute("admin");       return "redirect:/admin.do";    }}

用户管理操作

/** * 用户管理操作 */@Controller@RequestMapping("/user")public class UserController {     @Autowired    private UserService userService;     /**     * 用户添加页面     * @return     */    @GetMapping("/add")    public String create() {        return "user/add";    }     /**     * 用户添加操作     * @param user     * @return     */    @PostMapping("/add")    @ResponseBody    public Map add(@RequestBody User user) {        if(StringUtils.isEmpty(user.getUserName())){            return MapControl.getInstance().error("请填写用户名").getMap();        }        if(StringUtils.isEmpty(user.getName())){            return MapControl.getInstance().error("请填写名称").getMap();        }        if(StringUtils.isEmpty(user.getUserPwd())){            return MapControl.getInstance().error("请填写密码").getMap();        }        int result = userService.create(user);        if (result <= 0) {            return MapControl.getInstance().error().getMap();        }        return MapControl.getInstance().success().getMap();    }     /**     * 根据id删除     * @param id     * @return     */    @PostMapping("/delete/{id}")    @ResponseBody    public Map delete(@PathVariable("id") Integer id) {        int result = userService.delete(id);        if (result <= 0) {            return MapControl.getInstance().error().getMap();        }        return MapControl.getInstance().success().getMap();    }     //批量删除    @PostMapping("/delete")    @ResponseBody    public Map delete(String ids) {        int result = userService.delete(ids);        if (result <= 0) {            return MapControl.getInstance().error().getMap();        }        return MapControl.getInstance().success().getMap();    }     /**     * 编辑用户信息操作     * @param user     * @return     */    @PostMapping("/edit")    @ResponseBody    public Map edit(@RequestBody User user) {        if(StringUtils.isEmpty(user.getUserName())){            return MapControl.getInstance().error("请填写用户名").getMap();        }        if(StringUtils.isEmpty(user.getName())){            return MapControl.getInstance().error("请填写名称").getMap();        }        if(StringUtils.isEmpty(user.getUserPwd())){            return MapControl.getInstance().error("请填写密码").getMap();        }        int result = userService.update(user);        if (result <= 0) {            return MapControl.getInstance().error().getMap();        }        return MapControl.getInstance().success().getMap();    }     /**     * 根据id查询，跳转修改页面     * @param id     * @param modelMap     * @return     */    @GetMapping("/edit/{id}")    public String edit(@PathVariable("id") Integer id, ModelMap modelMap) {        User user = userService.detail(id);        modelMap.addAttribute("user", user);        return "user/edit";    }     //查询所有    @PostMapping("/query")    @ResponseBody    public Map query(@RequestBody User user) {        List list = userService.query(user);        Integer count = userService.count(user);        return MapControl.getInstance().success().page(list, count).getMap();    }     //跳转列表页面    @GetMapping("/list")    public String list() {        return "user/list";    } }

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