diff --git a/root/metadata/metaService.html b/root/metadata/metaService.html
index 7bc491a..914a7e3 100644
--- a/root/metadata/metaService.html
+++ b/root/metadata/metaService.html
@@ -293,7 +293,8 @@
             filter: {db: "", catalog: "", name: ""},//tableList 过滤条件
 
             filters:[],//查询配置
-            filterArr:[]
+            filterArr:[],
+            services: []
         },
         watch: {
             status: function (v) {
diff --git a/src/main/java/net/tccn/dbq/jdbc/api/DbKit.java b/src/main/java/net/tccn/dbq/jdbc/api/DbKit.java
index 196800a..e5b06bc 100644
--- a/src/main/java/net/tccn/dbq/jdbc/api/DbKit.java
+++ b/src/main/java/net/tccn/dbq/jdbc/api/DbKit.java
@@ -34,24 +34,4 @@ public class DbKit implements DbSource{
     public <T> T queryColumn(String sql, Class<T> type) {
         return dbSource.queryColumn(sql, type);
     }
-
-    @Override
-    public <T> T queryInt(String sql) {
-        return null;
-    }
-
-    @Override
-    public <T> T queryLong(String sql) {
-        return null;
-    }
-
-    @Override
-    public <T> T queryDouble(String sql) {
-        return null;
-    }
-
-    @Override
-    public <T> T queryDate(String sql) {
-        return null;
-    }
 }
diff --git a/src/main/java/net/tccn/dbq/jdbc/api/DbSource.java b/src/main/java/net/tccn/dbq/jdbc/api/DbSource.java
index 10c840b..3023cb2 100644
--- a/src/main/java/net/tccn/dbq/jdbc/api/DbSource.java
+++ b/src/main/java/net/tccn/dbq/jdbc/api/DbSource.java
@@ -14,8 +14,10 @@ public interface DbSource {
 
     <T> T queryColumn(String sql, Class<T> type);
 
+    //待实现
     default <T> void save(String tableName, T t) {}
 
+    //待实现
     default <T> void update(String tableName, T t) {}
 
     default int queryInt(String sql) {
diff --git a/src/main/java/net/tccn/dbq/jdbc/api/DbSourceMysql.java b/src/main/java/net/tccn/dbq/jdbc/api/DbSourceMysql.java
index eb610e5..23d970b 100644
--- a/src/main/java/net/tccn/dbq/jdbc/api/DbSourceMysql.java
+++ b/src/main/java/net/tccn/dbq/jdbc/api/DbSourceMysql.java
@@ -113,7 +113,6 @@ public class DbSourceMysql implements DbSource {
     private Connection connection() {
         return connection(0);
     }
-
     private Connection connection(int n) {
         AtomicReferenceArray<Connection> arr = conns.getOrDefault(accountKey, new AtomicReferenceArray<>(15));
         Connection connection = null;