diff --git a/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/util/xml/XStreamTransformer.java b/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/util/xml/XStreamTransformer.java
index f0961d5edf87e0b8198243f4a162576200685bed..f36d8c8fbd8f7e1842b5348bc652e3d6ddbbe39b 100644
--- a/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/util/xml/XStreamTransformer.java
+++ b/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/util/xml/XStreamTransformer.java
@@ -54,7 +54,22 @@ public class XStreamTransformer {
   public static void register(Class<?> clz, XStream xStream) {
     CLASS_2_XSTREAM_INSTANCE.put(clz, xStream);
   }
+  /**
+   * 注册第三方的该类及其子类.
+   * 便利第三方类使用 XStreamTransformer进行序列化, 以及支持XStream 1.4.18 以上增加安全许可
+   * @param clz 要注册的类
+   */
+  public static void registerExtendClass(Class<?> clz){
+    XStream xstream = XStreamInitializer.getInstance();
 
+    Class<?>[] innerClz = getInnerClasses(clz);
+    xstream.processAnnotations(clz);
+    xstream.processAnnotations(innerClz);
+    xstream.allowTypes(new Class[]{clz});
+    xstream.allowTypes(innerClz);
+
+    register(clz, xstream);
+  }
   /**
    * 会自动注册该类及其子类.
    *