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这篇文章主要介绍“Java怎么实现校园外卖点餐系统”，在日常操作中，相信很多人在Java怎么实现校园外卖点餐系统问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”Java怎么实现校园外卖点餐系统”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！
环境配置：
Jdk1.8 + Tomcat8.5 + mysql + Eclispe（IntelliJ IDEA,Eclispe,MyEclispe,Sts都支持）
项目技术：
JSP +Spring + SpringMVC + MyBatis + css + JavaScript + JQuery + Ajax + layui+ maven等等。
/**
* 管理员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());//分页查询
List<User> us= userService.list();
int total = (int) new PageInfo<>(us).getTotal();//总条数
page.setTotal(total);
model.addAttribute("us", us);//所有用户
model.addAttribute("total",total);
Map<User,List<Role>> user_roles = new HashMap<>();
//每个用户对应的权限
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";
}
/**
* 修改管理员角色
* @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);
//当前拥有的角色
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();
//如果在修改的时候没有设置密码，就表示不改动密码
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();//生成随机数
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";
}
}/**
* 管理员角色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());//分页查询
List<Role> rs= roleService.list();
int total = (int) new PageInfo<>(rs).getTotal();//总条数
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);
//所有权限
List<Permission> ps = permissionService.list();
model.addAttribute("ps", ps);
//当前管理员拥有的权限
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";
}
}/**
* 后台登陆
*/
@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");
//上次时间
Date time = us.getLasttime();
lastLoginTime = sdf.format(time);
//新时间
String format = sdf.format(new Date());
//string转date 不处理时间格式会不理想
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", "账号已被停用！");
return "/login";
}
} catch (AuthenticationException e) {
model.addAttribute("error", "验证失败！");
return "/login";
}
}
}/**
* 订单模块controller
*/
@Controller
@RequestMapping("/order")
public class OrderController {
@Autowired
OrderService orderService;
@Autowired
OrderItemService orderItemService;
/**
* 所有订单
* @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);
//为订单添加订单项数据
orderItemService.fill(os);
model.addAttribute("os", os);
model.addAttribute("page", page);
model.addAttribute("totals", total);
return "ordermodule/order-list";
}
/**
* 订单发货
* @param o
* @return
*/
@RequestMapping("/orderDelivery")
public String delivery(Order o){
o.setStatus(2);
orderService.update(o);
return "redirect:list";
}
/**
* 查看当前订单的订单项
* @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，关于“Java怎么实现校园外卖点餐系统”的学习就结束了，希望能够解决大家的疑惑。理论与实践的搭配能更好的帮助大家学习，快去试试吧！若想继续学习更多相关知识，请继续关注亿速云网站，小编会继续努力为大家带来更多实用的文章！
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