diff --git a/src/main/java/com/threecloud/dataserviceyy/util/FileUploadUtil.java b/src/main/java/com/threecloud/dataserviceyy/util/FileUploadUtil.java
index c51ce5b..9c33ebe 100644
--- a/src/main/java/com/threecloud/dataserviceyy/util/FileUploadUtil.java
+++ b/src/main/java/com/threecloud/dataserviceyy/util/FileUploadUtil.java
@@ -1,5 +1,6 @@
 package com.threecloud.dataserviceyy.util;
 
+import com.alibaba.fastjson2.JSON;
 import com.threecloud.dataserviceyy.entity.ResultEntity;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -16,7 +17,9 @@ import javax.annotation.PostConstruct;
 import javax.net.ssl.*;
 import java.io.IOException;
 import java.net.HttpURLConnection;
+import java.security.SecureRandom;
 import java.security.cert.X509Certificate;
+import java.util.Map;
 
 /**
  * 文件上传工具类
@@ -113,8 +116,8 @@ public class FileUploadUtil {
             return "";
         }
 
-        if (content instanceof java.util.Map) {
-            java.util.Map<?, ?> map = (java.util.Map<?, ?>) content;
+        if (content instanceof Map) {
+            Map<?, ?> map = (Map<?, ?>) content;
             Object url = map.get("fileUrl");
             if (url != null) {
                 return url.toString();
@@ -128,8 +131,8 @@ public class FileUploadUtil {
         String contentStr = content.toString().trim();
         if (contentStr.startsWith("{") || contentStr.startsWith("[")) {
             try {
-                Object parsed = com.alibaba.fastjson2.JSON.parse(contentStr);
-                if (parsed instanceof java.util.Map) {
+                Object parsed = JSON.parse(contentStr);
+                if (parsed instanceof Map) {
                     return parseFileUrl(parsed);
                 }
             } catch (Exception e) {
@@ -166,7 +169,7 @@ public class FileUploadUtil {
                     }
             };
             SSLContext sslContext = SSLContext.getInstance("TLS");
-            sslContext.init(null, trustAll, new java.security.SecureRandom());
+            sslContext.init(null, trustAll, new SecureRandom());
 
             SimpleClientHttpRequestFactory factory = new SimpleClientHttpRequestFactory() {
                 @Override