AJ-675: fix issue about ExclusiveDBConnectionPool not enable loadBalance;

Author: chengyitian

src/com/xxdb/ExclusiveDBConnectionPool.java

@@ -78,10 +78,10 @@ public ExclusiveDBConnectionPool(String host, int port, String uid, String pwd,
 		if (count <= 0)
 			throw new RuntimeException("The thread count can not be less than 0");
 		if (!loadBalance) {
+			// not enable loadBalance
 			for (int i=0; i<count; ++i) {
 				DBConnection conn = new DBConnection(false, useSSL, compress, usePython);
-				conn.setLoadBalance(false);
-				if(!conn.connect(host, port, uid, pwd, initialScript, enableHighAvailability, highAvailabilitySites))
+				if(!conn.connect(host, port, uid, pwd, initialScript, enableHighAvailability, highAvailabilitySites, false, loadBalance))
 					throw new RuntimeException("Can't connect to the specified host.");
 				workers_.add(new AsyncWorker(conn));
 			}