Java前后端分离的在线点餐系统实现详解

项目功能：

此项目分为两个角色：普通用户和管理员。普通用户有登录注册、浏览商品信息、添加购物车、结算订单、查看个人信息、查看个人订单详情等等功能。管理员有管理所有商品信息、管理所有订单信息、管理所有用户信息、查看收益数据图表等等功能。

应用技术：SpringBoot + VueCli + MySQL + MyBatis + Redis + ElementUI

运行环境：IntelliJ IDEA2019.3.5 + MySQL5.7+ Redis5.0.5 + JDK1.8 + Maven3.6.3+ Node14.16.1

管理员controller：

/**
 * 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：

/**
 * 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";
    }   

}

订单模块controller： 

/**
 * 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";
    }

}

到此这篇关于Java前后端分离的在线点餐系统实现详解的文章就介绍到这了,更多相关Java 在线点餐系统内容请搜索我们以前的文章或继续浏览下面的相关文章希望大家以后多多支持我们！