diff --git a/src/main/entry/org/bdware/sc/bean/Contract.java b/src/main/entry/org/bdware/sc/bean/Contract.java
index fb48469..7e8cd6a 100644
--- a/src/main/entry/org/bdware/sc/bean/Contract.java
+++ b/src/main/entry/org/bdware/sc/bean/Contract.java
@@ -19,10 +19,9 @@ public class Contract implements Serializable {
     String script;
     String owner;
     String pubkey;
-    String doi;
     String authInfoPersistDOI;
     String nodeCenterRepoDOI;
-    boolean doipFlag;
+    int doipPort;
     int numOfCopies = 1;
     boolean isDebug;
     int consensusType;
@@ -58,18 +57,18 @@ public class Contract implements Serializable {
         return id;
     }
 
+    public void setDoipPort(int doipPort) {
+        this.doipPort = doipPort;
+    }
+
+    public int getDoipPort() {
+        return doipPort;
+    }
+
     public void setID(String id) {
         this.id = id;
     }
 
-    public String getDOI() {
-        return doi;
-    }
-
-    public void setDOI(String doi) {
-        this.doi = doi;
-    }
-
     public String getAuthInfoPersistDOI() {
         return authInfoPersistDOI;
     }
@@ -86,14 +85,6 @@ public class Contract implements Serializable {
         this.nodeCenterRepoDOI = nodeCenterRepoDOI;
     }
 
-    public boolean getDoipFlag() {
-        return doipFlag;
-    }
-
-    public void setDoipFlag(boolean doipFlag) {
-        this.doipFlag = doipFlag;
-    }
-
     public ContractExecType getType() {
         return type;
     }