车道指标相关计算逻辑

realtime/hologram-streaming/src/main/java/com/zhht/irn/utils/DataSourceUtils.java

@@ -15,7 +15,7 @@ public class DataSourceUtils {
     public static boolean isDbConnected(Connection con) {
         //final String CHECK_SQL_QUERY = "SELECT 1";
         try {
-            if(!con.isClosed() || con!=null){
+            if(con != null && !con.isValid(1000)){
                 return true;
             }
         } catch (SQLException e) {