...

renren-admin/src/main/java/io/renren/common/controller/CensusController.java

@@ -276,8 +276,8 @@ public class CensusController {
                                 });
                             });
                     return task;
-                }).collect(Collectors.toList());
+                }).collect(Collectors.toList()); // 所有topN部门全异步查出应用领域
-        CompletableFuture.allOf(completableFutures.toArray(new CompletableFuture[completableFutures.size()])).join();
+        CompletableFuture.allOf(completableFutures.toArray(new CompletableFuture[completableFutures.size()])).join(); // 等待所有异步任务完成
         result.sort(Comparator.comparing(x ->
                 {
                     ObjectMapper mapper = new ObjectMapper();
@@ -288,7 +288,7 @@ public class CensusController {
                         throw new RuntimeException(e);
                     }
                 }).reversed().thenComparing(i -> i.toString())
-        );
+        ); // 按应用领域数目逆序排序
         return new Result<List<Map<String, Object>>>().ok(result);
     }