完成小程序端取消订单接口的开发

api-interface/itmk-base-parent/itmk-base-web/src/main/java/com/itmk/web/order/controller/UserOrderController.java

@@ -1,5 +1,6 @@
 package com.itmk.web.order.controller;
 
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.itmk.utils.ResultUtils;
@@ -42,6 +43,13 @@ public class UserOrderController {
     //发货
     @PutMapping("/sendOrder")
     public ResultVo sendOrder(@RequestBody SendParm parm){
+        //判断订单是否被取消
+        QueryWrapper<UserOrder> queryWrapper = new QueryWrapper<>();
+        queryWrapper.lambda().eq(UserOrder::getOrderId,parm.getOrderId()).eq(UserOrder::getStatus,"3");
+        UserOrder one = userOrderService.getOne(queryWrapper);
+        if(one != null){
+            return ResultUtils.error("订单已被取消，不能发货!");
+        }
         //更新条件
         LambdaUpdateWrapper<UserOrder> query = new LambdaUpdateWrapper<>();
         query.eq(UserOrder::getOrderId,parm.getOrderId())
@@ -51,4 +59,24 @@ public class UserOrderController {
         }
         return ResultUtils.error("更新失败!");
     }
+
+    //取消订单
+    @PostMapping("/cancelOrder")
+    public ResultVo cancelOrder(@RequestBody SendParm parm){
+        //如果已发货，不能取消
+        QueryWrapper<UserOrder> queryWrapper = new QueryWrapper<>();
+        queryWrapper.lambda().eq(UserOrder::getOrderId,parm.getOrderId()).eq(UserOrder::getStatus,"1");
+        UserOrder one = userOrderService.getOne(queryWrapper);
+        if(one != null){
+            return ResultUtils.error("订单已发货，不能取消!");
+        }
+        //更新条件
+        LambdaUpdateWrapper<UserOrder> query = new LambdaUpdateWrapper<>();
+        query.eq(UserOrder::getOrderId,parm.getOrderId())
+                .set(UserOrder::getStatus,"3");
+        if(userOrderService.update(query)){
+            return ResultUtils.success("取消成功!");
+        }
+        return ResultUtils.error("取消失败!");
+    }
 }