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這篇文章主要介紹“Java怎么實現校園外賣點餐系統”，在日常操作中，相信很多人在Java怎么實現校園外賣點餐系統問題上存在疑惑，小編查閱了各式資料，整理出簡單好用的操作方法，希望對大家解答”Java怎么實現校園外賣點餐系統”的疑惑有所幫助！接下來，請跟著小編一起來學習吧！
環境配置：
Jdk1.8 + Tomcat8.5 + mysql + Eclispe（IntelliJ IDEA,Eclispe,MyEclispe,Sts都支持）
項目技術：
JSP +Spring + SpringMVC + MyBatis + css + JavaScript + JQuery + Ajax + layui+ maven等等。
/**
* 管理員controller
*/
@Controller
@RequestMapping("/config")
public class UserController {
@Autowired
UserRoleService userRoleService;
@Autowired
UserService userService;
@Autowired
RoleService roleService;
@RequestMapping("/enableStatus")
@ResponseBody
public String enableStatus(@RequestParam(value = "name") String name){
return userService.enableStatus(name);
}
@RequestMapping("/stopStatus")
@ResponseBody
public String stopStatus(@RequestParam(value = "name") String name){
return userService.stopStatus(name);
}
@RequestMapping("/adminAdd")
public String adminadd(Model model){
List<Role> list = roleService.list();
model.addAttribute("rolelist",list);
return "syspage/admin-add";
}
@RequestMapping("/listUser")
public String list(Model model, Page page){
PageHelper.offsetPage(page.getStart(),page.getCount());//分頁查詢
List<User> us= userService.list();
int total = (int) new PageInfo<>(us).getTotal();//總條數
page.setTotal(total);
model.addAttribute("us", us);//所有用戶
model.addAttribute("total",total);
Map<User,List<Role>> user_roles = new HashMap<>();
//每個用戶對應的權限
for (User user : us) {
List<Role> roles=roleService.listRoles(user);
user_roles.put(user, roles);
}
model.addAttribute("user_roles", user_roles);
return "syspage/admin-list";
}
/**
* 修改管理員角色
* @param model
* @param id
* @return
*/
@RequestMapping("/editUser")
public String edit(Model model,Long id){
List<Role> rs = roleService.list();
model.addAttribute("rs", rs);
User user =userService.get(id);
model.addAttribute("user", user);
//當前擁有的角色
List<Role> roles =roleService.listRoles(user);
model.addAttribute("currentRoles", roles);
return "syspage/admin-edit";
}
@RequestMapping("deleteUser")
public String delete(Model model,long id){
userService.delete(id);
return "redirect:listUser";
}
@RequestMapping("updateUser")
public String update(User user, long[] roleIds){
userRoleService.setRoles(user,roleIds);
String password=user.getPassword();
//如果在修改的時候沒有設置密碼，就表示不改動密碼
if(user.getPassword().length()!=0) {
String salt = new SecureRandomNumberGenerator().nextBytes().toString();
int times = 2;
String algorithmName = "md5";
String encodedPassword = new SimpleHash(algorithmName,password,salt,times).toString();
user.setSalt(salt);
user.setPassword(encodedPassword);
}
else
user.setPassword(null);
userService.update(user);
return "redirect:listUser";
}
@RequestMapping("addUser")
public String add(User user,long[] roleIds){
String salt = new SecureRandomNumberGenerator().nextBytes().toString();//生成隨機數
int times = 2;
String algorithmName = "md5";
String encodedPassword = new SimpleHash(algorithmName,user.getPassword(),salt,times).toString();
User u = new User();
u.setName(user.getName());
u.setPassword(encodedPassword);
u.setSalt(salt);
u.setStatus(1);
u.setAddress(user.getAddress());
u.setPhone(user.getPhone());
userService.add(u);
userRoleService.setRoles(u,roleIds);
return "redirect:listUser";
}
}/**
* 管理員角色controler
*/
@Controller
@RequestMapping("/config")
public class RoleController {
@Autowired
RoleService roleService;
@Autowired
RolePermissionService rolePermissionService;
@Autowired
PermissionService permissionService;
@RequestMapping("/addRoleUI")
public String addRole(){
return "syspage/admin-role-add";
}
@RequestMapping("/listRole")
public String list(Model model, Page page){
PageHelper.offsetPage(page.getStart(),page.getCount());//分頁查詢
List<Role> rs= roleService.list();
int total = (int) new PageInfo<>(rs).getTotal();//總條數
page.setTotal(total);
model.addAttribute("rs", rs);
model.addAttribute("roleSize",total);
Map<Role,List<Permission>> role_permissions = new HashMap<>();
for (Role role : rs) {
List<Permission> ps = permissionService.list(role);
role_permissions.put(role, ps);
}
model.addAttribute("role_permissions", role_permissions);
return "syspage/admin-role";
}
@RequestMapping("/editRole")
public String list(Model model,long id){
Role role =roleService.get(id);
model.addAttribute("role", role);
//所有權限
List<Permission> ps = permissionService.list();
model.addAttribute("ps", ps);
//當前管理員擁有的權限
List<Permission> currentPermissions = permissionService.list(role);
model.addAttribute("currentPermissions", currentPermissions);
return "syspage/admin-role-edit";
}
@RequestMapping("/updateRole")
public String update(Role role,long[] permissionIds){
rolePermissionService.setPermissions(role, permissionIds);
roleService.update(role);
return "redirect:listRole";
}
@RequestMapping("/addRole")
public String list(Model model,Role role){
roleService.add(role);
return "redirect:listRole";
}
@RequestMapping("/deleteRole")
public String delete(Model model,long id){
roleService.delete(id);
return "redirect:listRole";
}
}/**
* 后臺登陸
*/
@Controller
@RequestMapping("")
public class LoginController {
@Autowired
UserService userService;
@RequestMapping(value="/login",method=RequestMethod.POST)
public String login(Model model, String name, String password){//throws ParseException
Subject subject = SecurityUtils.getSubject();
UsernamePasswordToken token = new UsernamePasswordToken(name,password);
try {
subject.login(token);
User us = userService.getByName(name);
String lastLoginTime = "";
if(us!=null){
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
//上次時間
Date time = us.getLasttime();
lastLoginTime = sdf.format(time);
//新時間
String format = sdf.format(new Date());
//string轉date 不處理時間格式會不理想
ParsePosition pos = new ParsePosition(0);
Date strtodate = sdf.parse(format, pos);
us.setLasttime(strtodate);
userService.update(us);
}
if (us.getStatus()==1){
Session session=subject.getSession();
session.setAttribute("subject", subject);
session.setAttribute("lastLoginTime",lastLoginTime);
return "redirect:index";
}else {
model.addAttribute("error", "賬號已被停用！");
return "/login";
}
} catch (AuthenticationException e) {
model.addAttribute("error", "驗證失敗！");
return "/login";
}
}
}/**
* 訂單模塊controller
*/
@Controller
@RequestMapping("/order")
public class OrderController {
@Autowired
OrderService orderService;
@Autowired
OrderItemService orderItemService;
/**
* 所有訂單
* @param model
* @param page
* @return
*/
@RequestMapping("/list")
public String list(Model model, Page page){
PageHelper.offsetPage(page.getStart(),page.getCount());
List<Order> os= orderService.list();
int total = (int) new PageInfo<>(os).getTotal();
page.setTotal(total);
//為訂單添加訂單項數據
orderItemService.fill(os);
model.addAttribute("os", os);
model.addAttribute("page", page);
model.addAttribute("totals", total);
return "ordermodule/order-list";
}
/**
* 訂單發貨
* @param o
* @return
*/
@RequestMapping("/orderDelivery")
public String delivery(Order o){
o.setStatus(2);
orderService.update(o);
return "redirect:list";
}
/**
* 查看當前訂單的訂單項
* @param oid
* @param model
* @return
*/
@RequestMapping("/seeOrderItem")
public String seeOrderItem(int oid,Model model){
Order o = orderService.get(oid);
orderItemService.fill(o);
model.addAttribute("orderItems",o.getOrderItems());
model.addAttribute("total",o.getOrderItems().size());
model.addAttribute("totalPrice",o.getTotal());
return "ordermodule/orderItem-list";
}
}到此，關于“Java怎么實現校園外賣點餐系統”的學習就結束了，希望能夠解決大家的疑惑。理論與實踐的搭配能更好的幫助大家學習，快去試試吧！若想繼續學習更多相關知識，請繼續關注億速云網站，小編會繼續努力為大家帶來更多實用的文章！
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