Autowired注解的妙用---在Controller里的构造函数里获取需要注入的对象

/*@Resource
private Observer<TaxiObserverVo> taxiPushObserver;

@Resource
private Observer<TaxiObserverVo> taxiFlowObserver;

public Pay () {
super();
addObserver(taxiFlowObserver);
addObserver(taxiPushObserver);
}*/

@Autowired
public Pay (Observer<TaxiObserverVo> taxiPushObserver,Observer<TaxiObserverVo> taxiFlowObserver) {
addObserver(taxiFlowObserver);
addObserver(taxiPushObserver);
}