diff --git a/pom.xml b/pom.xml
index d5eaaf6d..3805ed00 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>com.github.ontio</groupId>
     <artifactId>ontology-sdk-java</artifactId>
-    <version>1.0.14</version>
+    <version>1.0.15</version>
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
diff --git a/src/main/java/demo/ApiDemo.java b/src/main/java/demo/ApiDemo.java
new file mode 100644
index 00000000..8366662e
--- /dev/null
+++ b/src/main/java/demo/ApiDemo.java
@@ -0,0 +1,38 @@
+package demo;
+
+import com.github.ontio.OntSdk;
+
+/**
+ * @Description:
+ * @date 2019/12/12
+ */
+public class ApiDemo {
+
+    public static void main(String[] args) {
+
+        try {
+            OntSdk ontSdk = getOntSdk();
+            if (true) {
+                System.out.println(ontSdk.getConnect().getBalance("AHX1wzvdw9Yipk7E9MuLY4GGX4Ym9tHeDe"));
+                System.out.println(ontSdk.getConnect().getNodeSyncStatus());
+                System.exit(0);
+            }
+        }catch (Exception ex){
+        }
+    }
+    public static OntSdk getOntSdk() throws Exception {
+
+        String ip = "http://polaris1.ont.io";
+        String restUrl = ip + ":" + "20334";
+        String rpcUrl = ip + ":" + "20336";
+        String wsUrl = ip + ":" + "20335";
+
+        OntSdk wm = OntSdk.getInstance();
+        wm.setRpc(rpcUrl);
+        wm.setRestful(restUrl);
+        wm.setDefaultConnect(wm.getRpc());
+        wm.openWalletFile("wallet2.dat");
+
+        return wm;
+    }
+}