增加请求失败返回

@@ -139,8 +139,13 @@ const redpac = {
 
             return res.json(result || {});
         }).catch(e => {
-            console.log('error:', e);
+            console.log('MyError:', e);
+            res.json(Object.assign({
+                code: 400,
+                message: '请求失败,请重试'
+            }, e));
             sendMessage(0, {}, {message: e.message || 'interface error', stack: e}, 1);
+
             next();
         });
     },