diff --git a/java/CheckExist.java b/java/CheckExist.java
new file mode 100644
index 0000000000000000000000000000000000000000..e03cea43a81a05e5da3d9c2d0ba54b1b490f6525
--- /dev/null
+++ b/java/CheckExist.java
@@ -0,0 +1,28 @@
+/**
+ * 是否收藏(有没有感觉这段代码特别特别啰嗦，不够简洁）
+ * @param articleKey
+ * @param user
+ * @return
+ */
+public boolean isFavorite(String articleKey, User user) {
+    boolean isFavorite = false;
+    if (user == null) {
+        return false;
+    }
+    long userId = user.getId();
+    Article article = getByArticleKey(articleKey);
+    if (null == article) {
+        return false;
+    }
+    List<Long> list = listAttentionUsers(article);
+    if (list == null || list.size() <= 0) {
+        return false;
+    }
+    for (Long id : list) {
+        if (id == userId) {
+            isFavorite = true;
+            break;
+        }
+    }
+    return isFavorite;
+}