diff --git a/src/main/java/au/com/royalpay/payment/manage/riskbusiness/core/impl/RiskUploadServiceIpml.java b/src/main/java/au/com/royalpay/payment/manage/riskbusiness/core/impl/RiskUploadServiceIpml.java
index d24b95a2a..c720c729b 100644
--- a/src/main/java/au/com/royalpay/payment/manage/riskbusiness/core/impl/RiskUploadServiceIpml.java
+++ b/src/main/java/au/com/royalpay/payment/manage/riskbusiness/core/impl/RiskUploadServiceIpml.java
@@ -12,6 +12,7 @@ import au.com.royalpay.payment.manage.riskbusiness.core.RiskUploadService;
 import au.com.royalpay.payment.manage.riskbusiness.enums.RiskResultTypeEnum;
 import au.com.royalpay.payment.tools.exceptions.BadRequestException;
 import au.com.royalpay.payment.tools.threadpool.RoyalThreadPoolExecutor;
+import com.alibaba.fastjson.JSONArray;
 import com.alibaba.fastjson.JSONObject;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.commons.lang3.time.DateFormatUtils;
@@ -55,10 +56,10 @@ public class RiskUploadServiceIpml implements RiskUploadService {
         material.put("material_id",riskMaterialMapper.findAllMaterials(riskId).get(0).getString("material_id"));
         for(int i=1;i<=10;i++){
            if(material.containsKey("file"+i+"_url")){
-               List<String> urls = (List<String>)material.get("file"+i+"_url");
+               JSONArray urls = material.getJSONArray("file" + i + "_url");
                if (urls == null || urls.isEmpty())
                    continue;
-               for(String url:urls){
+               for(Object url:urls){
                    JSONObject file = new JSONObject();
                    file.put("file_url",url);
                    file.put("file_type",i);