更新

@@ -63,7 +63,7 @@ class Buy extends Api
      */
     public function priceCalculation()
     {
-        $json = $this->request->post('data_json');
+        $json = $this->request->param('data_json');
         if (!$json) $this->error('data_json参数不能为空');
         $data = json_decode($json,true);
         $goodsmodel = new \app\api\model\Goods();

@@ -202,8 +202,7 @@ class Cart extends Api
      */
     public function priceCalculation()
     {
-        $json = $this->request->param();
-        var_dump($json);exit();
+        $json = $this->request->param('data_json');
         if (!$json) $this->error('data_json参数不能为空');
 //        $json = '[{"goods_id":22,"goods_sku_id":106,"number":2},{"goods_id":23,"goods_sku_id":66,"number":2}]';
         $data = json_decode($json,true);

@@ -175,7 +175,7 @@ class Order extends Api
      */
     public function orderCalculation()
     {
-        $json = $this->request->post('data_json');
+        $json = $this->request->param('data_json');
         if (!$json) $this->error('data_json参数不能为空');
 //        $json = '[{"goods_id":22,"goods_sku_id":106,"number":2},{"goods_id":23,"goods_sku_id":66,"number":2}]';
         $data = json_decode($json,true);
@@ -364,9 +364,9 @@ class Order extends Api
      */
     public function addOrder()
     {
-        $json = $this->request->post('data_json');
-        $coupon_id = $this->request->post('coupon_id');
-        $address_id = $this->request->post('address_id');
+        $json = $this->request->param('data_json');
+        $coupon_id = $this->request->param('coupon_id');
+        $address_id = $this->request->param('address_id');
         if (!$json) $this->error('data_json参数不能为空');
 //        $json = '[{"goods_id":22,"goods_sku_id":106,"number":2},{"goods_id":23,"goods_sku_id":66,"number":2}]';
         $address = Db::name('user_address')