优化推荐系统和冷启动

Change-Id: I93d3091f249f2396a25702e01eb8dd5a9e95e8bc
diff --git a/front/src/config.js b/front/src/config.js
index 24fe7d1..1309822 100644
--- a/front/src/config.js
+++ b/front/src/config.js
@@ -1 +1 @@
-export const API_BASE_URL = "http://10.126.59.25:8083";
+export const API_BASE_URL = "http://10.126.59.25:9999";