enhancement: #I1X83P 监控日志最好能加个开关，可以方便对日志启用和关闭。

liteflow-core/src/main/java/com/yomahub/liteflow/monitor/MonitorBus.java

@@ -43,6 +43,14 @@ public class MonitorBus {
 
 	private ConcurrentHashMap<String, LimitQueue<CompStatistics>> statisticsMap = new ConcurrentHashMap<String, LimitQueue<CompStatistics>>();
 
+	public MonitorBus(boolean enableMonitorLog) {
+		this.enableMonitorLog = enableMonitorLog;
+		if(this.enableMonitorLog){
+			Timer timer = new Timer();
+			timer.schedule(new MonitorTimeTask(this), this.getDelay(), this.getPeriod());
+		}
+	}
+
 	public MonitorBus(boolean enableMonitorLog, int queueLimit, long delay, long period) {
 		this.enableMonitorLog = enableMonitorLog;
 		this.queueLimit = queueLimit;

liteflow-test-spring/src/main/resources/applicationContext.xml

@@ -19,4 +19,8 @@
 		</property>
 	</bean>
 
+	<bean class="com.yomahub.liteflow.monitor.MonitorBus">
+		<constructor-arg name="enableMonitorLog" value="true"/>
+	</bean>
+
 </beans>