diff --git a/openapi-sdk/src/main/java/cn/com/infosec/netsign/agent/PBCAgent2G.java b/openapi-sdk/src/main/java/cn/com/infosec/netsign/agent/PBCAgent2G.java
index 24f5bb1..77ce955 100644
--- a/openapi-sdk/src/main/java/cn/com/infosec/netsign/agent/PBCAgent2G.java
+++ b/openapi-sdk/src/main/java/cn/com/infosec/netsign/agent/PBCAgent2G.java
@@ -67,6 +67,15 @@ public class PBCAgent2G{
         this.timeout = timeout;
     }
 
+
+    public int getReturnCode(){
+        return 1;
+    }
+
+    public boolean closeSignServer(){
+        return true;
+    }
+
     public boolean openSignServer(String ip, int port, String password){
         System.out.println(ip);
         System.out.println(port);