首页商品列表增加数据缓存

@@ -8,9 +8,10 @@
     const $ = require('jquery');
     const titleFloor = require('component/resources/title-floor.vue');
     const productList = require('component/product/list.vue');
-
     const bus = require('common/vue-bus');
 
+    const dataCache = {};
+
     module.exports = {
         data() {
             return {
@@ -28,13 +29,23 @@
                 if (!productSkn.length) {
                     return;
                 }
+                productSkn = productSkn.join(',');
+
+                if (dataCache[productSkn]) {
+                    this.productList = this.productList.concat(dataCache[productSkn]);
+                    return;
+                }
                 $.ajax({
                     url: '/channel/goods.json',
                     data: {
-                        productSkn: productSkn.join(',')
+                        productSkn: productSkn
                     }
                 }).then(result => {
                     this.productList = this.productList.concat(result);
+
+                    if (result.length) {
+                        dataCache[productSkn] = result;
+                    }
                 });
             }
         },