remoting 中事件找不到订阅者时引发异常的解决办法
1、[oneway]oneway属性:
当事件不可到达,无法发送时,正常情况 下,会返回一个异常信息。如果加上OneWayAttribute,这个事件的发送就变成单向的了。假如此时发生异常,那么系统会自动抛掉该异常信息。由 于没有异常信息的返回,发送信息方会认为发送信息成功了。程序会正常运行,错误的客户端被忽略,正常的客户端依然可以收到消息;
2、检查委托链:
就是在发送信息一方时,检查了委托链。并在委托链的遍历中来捕获异常。当其中一个委托发生异常时,显示提示信息。 然后继续遍历后面的委托,这样既保证了异常信息的提示,又保证了其他订阅者正常接收消息。因此,我对本例的远程对象进行了修改,注释掉[OneWay], 修改了BroadCastInfo()方法:
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