推荐列表merge fix

community-service/src/main/java/com/tanpu/community/service/RecommendService.java

@@ -169,7 +169,7 @@ public class RecommendService {
     // 按照 6,3,1的比例
     private List<String> mergeRecommend(List<String> hotIds, List<String> newestIds, List<String> recmdIds) {
         List<String> retList = new ArrayList<>();
-
+        HashSet<String> set = new HashSet<>();
         int round = 0;
         while (true) {
 
@@ -179,9 +179,10 @@ public class RecommendService {
             if (hotStart >= hotIds.size() && newestStart >= newestIds.size() && recmdStart >= recmdIds.size()) {
                 break;
             }
-            retList.addAll(BizUtils.subList(newestIds, newestStart, newestStart + newRatio));
-            retList.addAll(BizUtils.subList(hotIds, hotStart, hotStart + hotRatio));
-            retList.addAll(BizUtils.subList(recmdIds, recmdStart, recmdStart + pythonRatio));
+            retList.addAll(BizUtils.subList(newestIds, newestStart, newRatio));
+            retList.addAll(BizUtils.subList(hotIds, hotStart, hotRatio));
+            retList.addAll(BizUtils.subList(recmdIds, recmdStart, pythonRatio));
+            set.addAll(retList);
 
             round++;
         }