获取用户是否参加活动

xx-activity/xx-activity-server/src/main/java/com/xxfc/platform/activity/biz/ActivityPopularizeBiz.java

@@ -99,14 +99,14 @@ public class ActivityPopularizeBiz extends BaseBiz<ActivityPopularizeMapper,Acti
                     //新增第几个邀请人和邀请金额字段
                     Integer num = relationBiz.getByUserIdAndPopularizeId(activityPopularizeRelation);
 
-                    BigDecimal amount = new BigDecimal(0);
+                    BigDecimal amount = null;
                     JSONObject jsonObject = JSONObject.parseObject(activityPopularizeItem.getDetail());
                     if (jsonObject != null && StringUtils.isNotBlank(jsonObject.getString("detail"))) {
                         JSONArray jsonArray = JSONArray.parseArray(jsonObject.getString("detail"));
                         if (jsonArray != null) {
                             JSONObject jsonObject1 = jsonArray.getJSONObject(num - 1);
                             if (jsonObject1 != null) {
-                                String amountString = jsonObject1.getString("amount");
+                                Integer amountString = jsonObject1.getInteger("amount");
                                 amount.add(new BigDecimal(amountString));
                             }
                         }

xx-activity/xx-activity-server/src/main/resources/mapper/ActivityPopularizeRelationMapper.xml

@@ -27,6 +27,6 @@
     </select>
 
     <select id="getByUserIdAndPopularizeId" parameterType="com.xxfc.platform.activity.entity.ActivityPopularizeRelation" resultType="Integer">
-        select num from activity_popularize_relation where major_user_id = #{majorUserId} and popularize_id = #{popularizeId} ORDER BY crt_time DESC LIMIT 1
+        select MAX(num) from activity_popularize_relation where major_user_id = #{majorUserId} and popularize_id = #{popularizeId} ORDER BY crt_time DESC LIMIT 1
     </select>
 </mapper>
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