我有一个 System.Timers.Timer，我发现在 ElapsedEventHandler 中有时会发生异常，但进程并没有死，但是执行 ElapsedEventHandler 的线程在发生异常的地方完全死了。不好，因为那时我不知道异常。为什么进程没有终止？如果 ElapsedEventHandler 中发生异常，如何以最佳方式终止进程？
我尝试使用 System.Threading.Timer 进行类似操作，然后进程终止。你能解释一下区别吗？
完整代码如下：
class Program
{
static public void DoBad()
{
Console.WriteLine("DoBad enter");
string s = "hello";
object o = s;
int i = (int)o; // Ops! Something unexpected happend here... Exception
Console.WriteLine("DoBad exit");
}
static void DoIt1(object sender, System.Timers.ElapsedEventArgs e)
{
Console.WriteLine("\nDoIt1 enter");
DoBad(); // Process is NOT terminated when excpetion occurs in DoBad, thread just dies quietly but process continues. Why is process not terminated?
Console.WriteLine("DoIt1 exit");
}
static void Test1()
{
System.Timers.Timer t = new System.Timers.Timer(2000);
t.Elapsed += new System.Timers.ElapsedEventHandler(DoIt1);
t.Enabled = true;
}
static public void DoIt2(Object o)
{
Console.WriteLine("\nDoIt2 enter");
DoBad(); // Process terminated when exception occurs in DoBad.
Console.WriteLine("DoIt2 exit");
}
static void Test2()
{
System.Threading.Timer timer = new System.Threading.Timer(DoIt2, null, 0, 2000);
}
static void Main(string[] args)
{
Test1(); // Process NOT terminated when exception occurs in DoBad
// Test2(); // Process terminated when exception occurs in DoBad
// Why is process NOT terminated when running Test1 (but terminated when running Test2)?
// Want process to die. How to do it in best way?
Console.WriteLine("Main Sleep");
System.Threading.Thread.Sleep(11000);
Console.WriteLine("Main Slept");
}
}
/ 谢谢！