加入购物车接口
<p><strong>接口说明 </strong></p>
<pre><code>请求接口: /gmall/app/cart/add
请求方式: POST
接口说明: 加入购物车接口（需登录）</code></pre>
<p><strong>请求参数 </strong></p>
<table>
<thead>
<tr>
<th>参数名</th>
<th>必选</th>
<th>长度</th>
<th>类型</th>
<th>说明</th>
</tr>
</thead>
<tbody>
<tr>
<td>productId</td>
<td>int</td>
<td>20</td>
<td>是</td>
<td>商品id</td>
</tr>
<tr>
<td>quantity</td>
<td>int</td>
<td>4</td>
<td>是</td>
<td>商品数量（不大于0执行删除操作）</td>
</tr>
<tr>
<td>skuCode</td>
<td>string</td>
<td>32</td>
<td>是</td>
<td>SKU编码（组成规则：属性id:属性值id-属性id:属性值id）,默认0:0</td>
</tr>
<tr>
<td>skuName</td>
<td>string</td>
<td>32</td>
<td>是</td>
<td>SKU名称(属性值名称-属性值名称),默认空</td>
</tr>
</tbody>
</table>
<p><strong>返回参数</strong></p>
<table>
<thead>
<tr>
<th>参数名</th>
<th>类型</th>
<th>说明</th>
</tr>
</thead>
<tbody>
<tr>
<td>code</td>
<td>string</td>
<td>状态值</td>
</tr>
<tr>
<td>msg</td>
<td>string</td>
<td>返回消息</td>
</tr>
<tr>
<td>id</td>
<td>string</td>
<td>商品id</td>
</tr>
<tr>
<td>productName</td>
<td>string</td>
<td>商品名称</td>
</tr>
<tr>
<td>mainPic</td>
<td>string</td>
<td>商品主图</td>
</tr>
<tr>
<td>quantity</td>
<td>string</td>
<td>购买数量</td>
</tr>
<tr>
<td>marketPrice</td>
<td>string</td>
<td>商品市场价</td>
</tr>
<tr>
<td>price</td>
<td>string</td>
<td>商品现价</td>
</tr>
<tr>
<td>totalAmount</td>
<td>string</td>
<td>购买总价</td>
</tr>
</tbody>
</table>
<p><strong>返回示例</strong></p>
<pre><code>{
"code": "0000",
"msg": "操作成功！",
"data":{
"totalNum": 1,
"totalAmount": 50.0,
"cart":[
{
"id": 1,
"productName": "测试商品111",
"mainPic": "",
"quantity": 1,
"marketPrice": 90.0,
"price": 50.0,
"totalPrice": 50.0,
"skuCode": "1:2",
"skuName": "绿色"
}
]
}
}</code></pre>