diff --git a/src/main/java/com/example/demo/controller/cash/Bank.java b/src/main/java/com/example/demo/controller/cash/Bank.java
new file mode 100644
index 0000000..7b95437
--- /dev/null
+++ b/src/main/java/com/example/demo/controller/cash/Bank.java
@@ -0,0 +1,14 @@
+package com.example.demo.controller.cash;
+
+/**
+ * @program: gold-java
+ * @ClassName Bank
+ * @description:
+ * @author: Double
+ * @create: 2025−11-17 13:31
+ * @Version 1.0
+ **/
+
+public class Bank {
+
+}
diff --git a/src/main/java/com/example/demo/serviceImpl/coin/RechargeActivityCenterServiceImpl.java b/src/main/java/com/example/demo/serviceImpl/coin/RechargeActivityCenterServiceImpl.java
index 0bae8c8..02f5b4e 100644
--- a/src/main/java/com/example/demo/serviceImpl/coin/RechargeActivityCenterServiceImpl.java
+++ b/src/main/java/com/example/demo/serviceImpl/coin/RechargeActivityCenterServiceImpl.java
@@ -43,8 +43,8 @@ public class RechargeActivityCenterServiceImpl implements RechargeActivityCenter
     @Override
     public void addActivity(RechargeActivity activity) {
 
-        if (activity.getActivityName().length() > 50) {
-            throw new IllegalArgumentException("活动名称不能超过50个字符");
+        if (activity.getActivityName().length() > 100) {
+            throw new IllegalArgumentException("活动名称不能超过100个字符");
         }
         RechargeActivity activityByName = rechargeActivityCenterMapper.queryActivityByName(activity);
         if (activityByName != null) {