diff --git a/src/main/java/com/example/demo/mapper/coin/RechargeActivityCenterMapper.java b/src/main/java/com/example/demo/mapper/coin/RechargeActivityCenterMapper.java
index 27e527e..2edee99 100644
--- a/src/main/java/com/example/demo/mapper/coin/RechargeActivityCenterMapper.java
+++ b/src/main/java/com/example/demo/mapper/coin/RechargeActivityCenterMapper.java
@@ -23,6 +23,8 @@ public interface RechargeActivityCenterMapper {
 
     // 根据ID查询活动
     List<RechargeActivity> queryActivity(RechargeActivity activity);
+    // 根据活动名称查询活动
+    RechargeActivity queryActivityByName(RechargeActivity activity);
 
     // 新增活动
     void addActivity(RechargeActivity activity);
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 2281e38..0bae8c8 100644
--- a/src/main/java/com/example/demo/serviceImpl/coin/RechargeActivityCenterServiceImpl.java
+++ b/src/main/java/com/example/demo/serviceImpl/coin/RechargeActivityCenterServiceImpl.java
@@ -11,6 +11,7 @@ import org.springframework.stereotype.Service;
 import java.time.LocalDateTime;
 import java.util.Date;
 import java.util.List;
+import java.util.regex.Pattern;
 
 /**
  * @program: gold-java
@@ -27,7 +28,8 @@ public class RechargeActivityCenterServiceImpl implements RechargeActivityCenter
     @Autowired
     private RechargeActivityCenterMapper rechargeActivityCenterMapper;
 
-
+    private static final String ACTIVITY_NAME_REGEX = "^[\\u4e00-\\u9fa5a-zA-Z0-9，。！？、；：\"'（）《》【】——～,.:;!'()\\[\\]-_&+=]{1,50}$";
+    private static final Pattern ACTIVITY_NAME_PATTERN = Pattern.compile(ACTIVITY_NAME_REGEX);
     // 根据ID查询活动
     @Override
     public PageInfo<RechargeActivity> queryActivity(Integer pageNum, Integer pageSize, RechargeActivity activity) {
@@ -40,6 +42,18 @@ public class RechargeActivityCenterServiceImpl implements RechargeActivityCenter
     // 新增活动
     @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");
+        }
+        RechargeActivity activityByName = rechargeActivityCenterMapper.queryActivityByName(activity);
+        if (activityByName != null) {
+            throw new IllegalArgumentException("活动名称已存在");
+        }
+        // 3. 字符格式校验
+        if (!ACTIVITY_NAME_PATTERN.matcher(activity.getActivityName()).matches()) {
+            throw new IllegalArgumentException("活动名称仅允许包含汉字、英文字母、数字及常见标点符号（中英文标点：，。！？、；：\"'（）《》【】——～,.:;!'()[]-_&+=）");
+        }
         Date startTime = activity.getStartTime();
         Date endTime = activity.getEndTime();
 
diff --git a/src/main/resources/mapper/RechargeActivityCenterMapper.xml b/src/main/resources/mapper/RechargeActivityCenterMapper.xml
index 06f23d3..11ec645 100644
--- a/src/main/resources/mapper/RechargeActivityCenterMapper.xml
+++ b/src/main/resources/mapper/RechargeActivityCenterMapper.xml
@@ -56,7 +56,21 @@
                 ra.update_time DESC
         </trim>
     </select>
-
+    <!-- 查询活动 -->
+    <select id="queryActivityByName" resultType="com.example.demo.domain.vo.coin.RechargeActivity">
+        SELECT
+        ra.id
+        FROM recharge_activity ra
+        <where>
+            ra.flag = 1
+            <if test="activityName != null and activityName != ''">
+                AND ra.activity_name = #{activityName}
+            </if>
+        </where>
+        <trim prefix="ORDER BY" suffixOverrides=",">
+            ra.update_time DESC
+        </trim>
+    </select>
     <!-- 新增活动 -->
     <insert id="addActivity" parameterType="com.example.demo.domain.vo.coin.RechargeActivity">
         INSERT INTO recharge_activity (