實現訂單系統

1 訂單系統實現

1.1 系統架構

1.2 訂單表結構

訂單表：

 

 

訂單商品表：

 

 

物流表：

 

 

1.3 接口

參見：淘淘商城-訂單系統接口.docx

 

1.4 創建訂單系統taotao-order

 

 

系統配置參考taotao-sso系統。

 

1.5 實現創建訂單接口

1.5.1 service

@Service
public class OrderServiceImpl implements OrderService {

@Autowired
private TbOrderMapper orderMapper;
@Autowired
private TbOrderItemMapper orderItemMapper;
@Autowired
private TbOrderShippingMapper orderShippingMapper;
//redis中的訂單key
@Value("${ORDER_ID_KEY}")
private String ORDER_ID_KEY;
@Value("${ORDER_BEGIN_ID}")
private Long ORDER_BEGIN_ID;
@Autowired
private JedisCluster jedisCluster;
@Override
public TaotaoResult createOrder(TbOrder order, List<TbOrderItem> itemList, TbOrderShipping orderShipping) {
//訂單表
//生成訂單號
String orderIdStr = jedisCluster.get(ORDER_ID_KEY);
Long orderId = null;
if (StringUtils.isBlank(orderIdStr)) {
//如果redis中沒有訂單號使用初始訂單號初始化
jedisCluster.set(ORDER_ID_KEY, ORDER_BEGIN_ID.toString());
orderId = ORDER_BEGIN_ID;
} else {
//生成訂單號
orderId = jedisCluster.incr(ORDER_ID_KEY);
}
//設置訂單號
order.setOrderId(orderId.toString());
Date date = new Date();
//訂單創建時間
order.setCreateTime(date);
//訂單更新時間
order.setUpdateTime(date);
//插入訂單表
orderMapper.insert(order);
//插入訂單商品表
for (TbOrderItem tbOrderItem : itemList) {
//取訂單商品id
Long orderItemId = jedisCluster.incr("ORDER_ITEM_ID");
tbOrderItem.setId(orderItemId.toString());
tbOrderItem.setOrderId(orderId.toString());
//添加到訂單商品表
orderItemMapper.insert(tbOrderItem);
}
//插入物流表
orderShipping.setOrderId(orderId.toString());
orderShipping.setCreated(date);
orderShipping.setUpdated(date);
orderShippingMapper.insert(orderShipping);
return TaotaoResult.ok(orderId.toString());
}

}

1.5.2 Controller 

1.5.2.1 Pojo

public class Order extends TbOrder{

private List<TbOrderItem> orderItems;
private TbOrderShipping orderShipping;
}

1.5.2.2 controller

 

@Controller
@RequestMapping("/order")
public class OrderController {

@Autowired
private OrderService orderService;
@RequestMapping(value = "/create", method=RequestMethod.POST)
@ResponseBody
public TaotaoResult createOrder(@RequestBody Order order) {
TaotaoResult result = null;
try {
result = orderService.createOrder(order, order.getOrderItems(), order.getOrderShipping());
} catch (Exception e) {
e.printStackTrace();
return TaotaoResult.build(500, ExceptionUtil.getStackTrace(e));
}
return result;
}
}

1.6 其他接口 

....

 

2 前端系統實現下單功能

2.1 下單流程

2.2 訂單結算頁面

 

2.2.1 Controller

@Controller

@RequestMapping("/order")

public class OrderController {

 

@Autowired

private OrderService orderService;

@Autowired

private CartService cartService;

/**

 * 顯示訂單確認畫面

 * <p>Title: showOrderCart</p>

 * <p>Description: </p>

 * @param request

 * @param model

 * @return

 */

@RequestMapping("/order-cart")

public String showOrderCart(HttpServletRequest request, TbUser user, Model model) {

//根據用戶信息，取出用戶的收貨地址列表

//本項目中使用靜態數據模擬。。。。

//從cookie中把商品列表取出來

List<Item> itemsList = cartService.getCartItemsList(request);

model.addAttribute("cartList", itemsList);

return "order-cart";

}

}

 

2.3 提交訂單處理

2.3.1 創建訂單Service

@Srvice
public class OrderServiceImpl implements OrderService {

@Value("${ORDER_BASE_URL}")
private String ORDER_BASE_URL;
@Value("${ORDER_CREATE_URL}")
private String ORDER_CREATE_URL;
@Override
public TaotaoResult createService(Order order) {
//把pojo轉換成json數據
String json = JsonUtils.objectToJson(order);
//調用訂單系統服務提交訂單
String resultStr = HttpClientUtil.doPostJson(ORDER_BASE_URL + ORDER_CREATE_URL, json);
//轉換成java對象
TaotaoResult taotaoResult = TaotaoResult.format(resultStr);
return taotaoResult;
}

}

2.3.2 Controller 

@RequestMapping(value="/create", method=RequestMethod.POST)
public String createOrder(HttpServletRequest request, Order order, Model model) {
//從request中取用戶信息
TbUser user = (TbUser)request.getAttribute("user");
//把用戶信息補充到order對象中
order.setUserId(user.getId());
order.setBuyerNick(user.getUsername());
//提交訂單
TaotaoResult result = null;
try {
result = orderService.createService(order);
//訂單創建成功
if(result.getStatus() == 200) {
model.addAttribute("orderId", result.getData());
model.addAttribute("payment", order.getPayment());
//兩天後送達
DateTime dateTime = new DateTime();
dateTime = dateTime.plusDays(2);
model.addAttribute("date", dateTime.toString("yyyy-MM-dd"));
return "success";
}
} catch (Exception e) {
e.printStackTrace();
result = TaotaoResult.build(500, ExceptionUtil.getStackTrace(e));
}
//訂單創建失敗
model.addAttribute("message", result.getMsg());
return "error/exception";
}