传播链图，更改key格式

app/controllers/admin/forumThread.js

@@ -1153,8 +1153,8 @@ router.get('/thread/:tid/spreadchainByRedis', function(req, res, next) {
             data.children = childrens;
 
             //put data into redis
-            var key = tid + "_spreadchain"
-            console.log("spreadchain data=" + data);
+            //var key = tid + "_spreadchain"
+            var key = "sc_forum_thread_" + tid;
             redis.set(key,JSON.stringify(data));
             redis.expire(key,60);