Merge branch 'gray' into test6.8.6

@@ -227,7 +227,7 @@ public class ControllerCacheAop implements ApplicationContextAware{
             methodParams.add(param);
         }
 
-        String arg_sign  =  String.join("-", methodParams).replaceAll("\\s+","-");
+        String arg_sign  =  String.join("$", methodParams).replaceAll("\\s+","$");
 
         return arg_sign;
     }