fix

+const cache = global.yoho.cache;
+const logger = global.yoho.logger;
+
+const ONE_MINUTE = 60;
+const FIVE_MINUTE = 5 * ONE_MINUTE;
+
+function _cacheGet(key) {
+    return cache.get(key).then((data) => {
+        if (data) {
+            return JSON.parse(data);
+        }
+
+        return Promise.reject();
+    });
+}
+
+function _cacheSave(key, value, ttl) {
+    return cache.set(key, value, ttl)
+        .catch(err => logger.error(`save cache data fail:${err.toString()}`));
+}
+
+function defaultKey() {
+    const args = Array.prototype.slice.call(arguments);
+
+    return JSON.stringify(args || '[]');
+}
+
+function _cached(fn, keyFn = defaultKey, ctx = null, ttl = FIVE_MINUTE) {
+    const keyGen = function() {
+        const args = Array.prototype.slice.call(arguments);
+
+        return '_cache:' + (fn.name || '') + ':' + keyFn.apply(null, args);
+    };
+
+    return function() {
+        const args = Array.prototype.slice.call(arguments);
+        const key = keyGen.apply(null, args);
+
+        return _cacheGet(key).catch(() => {
+            return fn.apply(ctx, args).then(result => {
+                _cacheSave(key, result, ttl);
+                return result;
+            });
+        });
+    };
+}
+
+module.exports = _cached;

@@ -17,6 +17,7 @@ const logger = global.yoho.logger;
 
 const detailHelper = require('./detail-helper');
 
+const _cached = require('./cache-utils');
 const ProductModel = require('./detail-product-api');
 const ConsultServiceModel = require('./detail-consult-service');
 const CommentServiceModel = require('./detail-comment-service');
@@ -1737,7 +1738,9 @@ module.exports = class extends global.yoho.BaseModel {
         this.usefulAsync = this.consultService.usefulAsync.bind(this.consultService);
 
         // 获取某一个商品详情主页面
-        this.showMainAsync = showMainAsync.bind(this);
+        this.showMainAsync = _cached(showMainAsync, function keyGen(req, {skn, channel, gender}) {
+            return skn + (channel || '') + (gender || '');
+        }, this);
 
         // 获取某一个商品详情主页面
         this.showMainBackAsync = showMainBackAsync.bind(this);