最近有小伙伴要学习安卓，今天给大家展示一个安卓系统的开发，希望能帮到你学习！
传统的点餐方式有：
1） 手工点餐模式。在这种模式下，流程简单，店员很快知道要点什么，但随着点餐人数多，就会让店家分不清谁点的是什么，出错概率就增加。
2） 店员手持PDA等触摸屏掌上电脑进行点餐。这种模式虽然减少了传统手工点餐的纸质浪费，但也需要店员一个一个记录，在这过程中也消耗了部分时间。而且这种模式需要添加基站设备，设备支出成本也是极高。
3） 少数店家用APP或公众号来点餐。目前已经有少数商家用APP来实现点餐，但大多数还是用前两种来点餐。而且现阶段的APP点餐系统发展还不完善，还有待提高。
一，开发需求和技术栈
登录模块设计、点菜模块、付款模块、菜品浏览模块、订单模块、用户管理模块、分享动态模块等等。
技术栈：Android、Java、Mysql、SpringBoot、Mysql
二，系统的界面
三，系统的核心代码
//作者：小孟 v：jishulearn @Controller @RequestMapping("/api") public class ApiController { @Autowired private UsersService userService; @Autowired private ProductsService booksService; @Autowired private ShopsService bookshopService; @Autowired private ShopcartService shopcartService; @Autowired private ShoporderService orderService; @Autowired private PinglunService pinglunService; @Autowired private DizhiService dizhiService; @Autowired private PengyouquanService pengyouquanService; @PostMapping("/userlogin") @ResponseBody public JsonResult login(String username, String password) { if (username == null || username.trim().isEmpty()) return JsonResult.error("请输入账号"); if (password == null || password.trim().isEmpty()) return JsonResult.error("请输入密码"); Users user = userService.getOne(new QueryWrapper<Users>().eq("username",username).eq("password",password)); if(user != null){ return JsonResult.ok("登录成功").put("username",username).put("password",password).put("id",user.getId()); }else{ return JsonResult.error("用户名或密码错误"); } } @PostMapping("/userreg") @ResponseBody public JsonResult reg(String username1, String password1,String nickname1) { if (username1 == null || username1.trim().isEmpty()) return JsonResult.error("请输入账号"); if (password1 == null || password1.trim().isEmpty()) return JsonResult.error("请输入密码"); Users user1 = new Users(); user1.setUsername(username1); user1.setNickname(nickname1); user1.setPassword(password1); if (userService.save(user1)) { return JsonResult.ok("注册成功"); } return JsonResult.error("注册失败"); } @PostMapping("/userupdate") @ResponseBody public JsonResult update(Integer id,String username2, String password2,String nickname2) { if (username2 == null || username2.trim().isEmpty()) return JsonResult.error("请输入账号"); if (password2 == null || password2.trim().isEmpty()) return JsonResult.error("请输入密码"); if (nickname2 == null || nickname2.trim().isEmpty()) return JsonResult.error("请输入密码"); Users userone = userService.getById(id); if(userone == null){ return JsonResult.ok("用户不存在！"); } userone.setUsername(username2); userone.setPassword(password2); userone.setNickname(nickname2); if (userService.save(userone)) { return JsonResult.ok("修改成功"); } return JsonResult.error("修改失败"); } /** * book查询全部 */ @ResponseBody @RequestMapping("/book/listByname") public JsonResult listByname(String name) { PageParam<Products> pageParam = new PageParam<>(); pageParam.put("name", name); List<Products> records = booksService.listAll(pageParam.getNoPageParam()); return JsonResult.ok().setData(records); } /** * 查询所有 * @param bookshop * @return */ @ResponseBody @RequestMapping("/book/list") public JsonResult productList(String bookshop) { PageParam<Shops> pageParam = new PageParam<>(); List<Products> records = booksService.listAll(pageParam.getNoPageParam()); return JsonResult.ok().setData(records); } /** * bookshop查询全部 */ @ResponseBody @RequestMapping("/bookshop/list") public JsonResult list2(String name) { PageParam<Shops> pageParam = new PageParam<>(); pageParam.put("name", name); List<Shops> records = bookshopService.listAll(pageParam.getNoPageParam()); return JsonResult.ok().setData(records); }
/** * 管理 * Created by 小孟 v:jishulearn */ @Controller @RequestMapping("/zaocan/pengyouquan") public class PengyouquanController extends BaseController { @Autowired private PengyouquanService pengyouquanService; @RequestMapping() public String view() { return "zaocan/pengyouquan.html"; } /** * 分页查询 */ @ResponseBody @RequestMapping("/page") public PageResult<Pengyouquan> page(HttpServletRequest request) { PageParam<Pengyouquan> pageParam = new PageParam<>(request); return new PageResult<>(pengyouquanService.page(pageParam, pageParam.getWrapper()).getRecords(), pageParam.getTotal()); //return pengyouquanService.listPage(pageParam); // 使用关联查询 } /** * 查询全部 */ @ResponseBody @RequestMapping("/list") public JsonResult list(HttpServletRequest request) { PageParam<Pengyouquan> pageParam = new PageParam<>(request); return JsonResult.ok().setData(pengyouquanService.list(pageParam.getOrderWrapper())); //List<Pengyouquan> records = pengyouquanService.listAll(pageParam.getNoPageParam()); // 使用关联查询 //return JsonResult.ok().setData(pageParam.sortRecords(records)); } /** * 根据id查询 */ @ResponseBody @RequestMapping("/get") public JsonResult get(Integer id) { return JsonResult.ok().setData(pengyouquanService.getById(id)); // 使用关联查询 //PageParam<Pengyouquan> pageParam = new PageParam<>(); //pageParam.put("id", id); //List<Pengyouquan> records = pengyouquanService.listAll(pageParam.getNoPageParam()); //return JsonResult.ok().setData(pageParam.getOne(records)); } /** * 添加 */ @ResponseBody @RequestMapping("/save") public JsonResult save(Pengyouquan pengyouquan) { if (pengyouquanService.save(pengyouquan)) { return JsonResult.ok("添加成功"); } return JsonResult.error("添加失败"); }
public class AddDiZHiActivity extends BaseActivity { @BindView(R.id.tv_title) TextView tv_title; @BindView(R.id.iv_back) ImageView iv_back; @BindView(R.id.iv_right) ImageView iv_right; @BindView(R.id.et_one) EditText et_one; @BindView(R.id.et_two) EditText et_two; @BindView(R.id.et_three) EditText et_three; @Override protected int createLayout() { return R.layout.activity_adddizhi; } @Override public void initViews() { iv_back.setVisibility(View.VISIBLE); tv_title.setText("添加地址"); } @Override public void initData() { } @OnClick({R.id.iv_back, R.id.tv_add}) public void onViewClicked(View view) { switch (view.getId()) { case R.id.iv_back: finish(); break; case R.id.tv_add: if (TextUtils.isEmpty(et_one.getText().toString())) { showToast("请填写地址"); return; } if (TextUtils.isEmpty(et_two.getText().toString())) { showToast("请填写联系人"); return; } if (TextUtils.isEmpty(et_three.getText().toString())) { showToast("请填写联系方式"); return; } add(); break; } }
public class DiZhiActivity extends BaseActivity { @BindView(R.id.tv_title) TextView tv_title; @BindView(R.id.iv_back) ImageView iv_back; private Intent intent; @BindView(R.id.rv_shop) RecyclerView rv_shop; @BindView(R.id.iv_right) ImageView iv_right; private DiZHiAdapter diZHiAdapter; private List<PengListInfoBane> shopBeans = new ArrayList<>(); @Override protected int createLayout() { return R.layout.activity_shop; } @Override public void initViews() { BCManager.instance().listener("DiZhiActivity", "DiZhiActivity", new BlockCallBack() { @Override public void block(Object target, String name, Object data) { getData(); } }); getData(); iv_back.setVisibility(View.VISIBLE); tv_title.setText("地址管理"); iv_right.setVisibility(View.VISIBLE); iv_right.setImageResource(R.mipmap.ic_add); } private void getData() { MyHttpUtils.build()//构建myhttputils .url(HttpConfig.HTTP_IP + "/dizhi/list")//获取ip的url .setJavaBean(DiZhiBean.class)//设置请求结果对应的java对象 .onExecute(new CommCallback<DiZhiBean>() { @Override public void onSucceed(DiZhiBean ipBean) { Log.e("ipBean", ipBean + "ipBean"); rv_shop.setLayoutManager(new LinearLayoutManager(DiZhiActivity.this)); diZHiAdapter = new DiZHiAdapter(DiZhiActivity.this, R.layout.item_dizhi, ipBean.getData()); rv_shop.setAdapter(diZHiAdapter); diZHiAdapter.setOnItemClickListener(new MultiItemTypeAdapter.OnItemClickListener() { @Override public void onItemClick(View view, RecyclerView.ViewHolder viewHolder, int i) { BCManager.instance().post("dizhi","dizhi",ipBean.getData().get(i)); showToast("选择成功"); finish(); } @Override public boolean onItemLongClick(View view, RecyclerView.ViewHolder viewHolder, int i) { return false; } }); }
