diff --git a/pay-java-common/src/main/java/com/egzosn/pay/common/api/BasePayConfigStorage.java b/pay-java-common/src/main/java/com/egzosn/pay/common/api/BasePayConfigStorage.java
index cb518d8..80176f3 100644
--- a/pay-java-common/src/main/java/com/egzosn/pay/common/api/BasePayConfigStorage.java
+++ b/pay-java-common/src/main/java/com/egzosn/pay/common/api/BasePayConfigStorage.java
@@ -18,6 +18,7 @@ import java.util.concurrent.locks.ReentrantLock;
  */
 public abstract class BasePayConfigStorage implements PayConfigStorage{
 
+    private volatile Object attach;
     /**
      * 证书管理器
      */
@@ -86,6 +87,15 @@ public abstract class BasePayConfigStorage implements PayConfigStorage{
      */
     private boolean isCertSign = false;
 
+    @Override
+    public Object getAttach() {
+        return attach;
+    }
+
+    public void setAttach(Object attach) {
+        this.attach = attach;
+    }
+
     @Override
     public CertDescriptor getCertDescriptor() {
         if (!isCertSign){
diff --git a/pay-java-common/src/main/java/com/egzosn/pay/common/api/PayConfigStorage.java b/pay-java-common/src/main/java/com/egzosn/pay/common/api/PayConfigStorage.java
index 8d1ba85..0521cdc 100644
--- a/pay-java-common/src/main/java/com/egzosn/pay/common/api/PayConfigStorage.java
+++ b/pay-java-common/src/main/java/com/egzosn/pay/common/api/PayConfigStorage.java
@@ -15,6 +15,11 @@ import java.util.concurrent.locks.Lock;
  */
  public interface PayConfigStorage {
 
+    /**
+     * 附加支付配置
+     * @return 附加信息
+     */
+     Object getAttach();
     /**
      * 获取证书解释器
      * @return 证书解释器