我需要在定时器上调用函数(让我们说onTickTack()函数),并在ASP.NET MVC项目中重新加载一些信息.我知道有几种方法可以做到这一点,但是你认为最好的是哪一种？
注意：该函数只能从一个地方调用,每隔X分钟调用一次,直到应用程序启动.
编辑1：
重新加载一些信息 – 例如我在缓存中有一些东西,并且我想从定时器中的DB更新它 – 在一定时间内每天一次.
解决方法
这个问题的答案很大程度上取决于你在ASP.NET MVC项目中重新加载一些信息是什么意思.这不是一个明确的问题,因此,显而易见,它不能有明确的答案.
因此,如果我们假设这样做,您想定期轮询一些控制器操作并更新视图上的信息,您可以使用setInterval javascript函数通过发送AJAX请求定期轮询服务器并更新UI：
window.setInterval(function() {
// Send an AJAX request every 5s to poll for changes and update the UI
// example with jquery:
$.get('/foo',function(result) {
// TODO: use the results returned from your controller action
// to update the UI
});
},5000);
如果另一方面你的意思是在服务器上定期执行一些任务,你可以使用这样的RegisterWaitForSingleObject方法：
var waitHandle = new AutoResetEvent(false);
ThreadPool.RegisterWaitForSingleObject(
waitHandle,// Method to execute
(state,timeout) =>
{
// TODO: implement the functionality you want to be executed
// on every 5 seconds here
// Important Remark: This method runs on a worker thread drawn
// from the thread pool which is also used to service requests
// so make sure that this method returns as fast as possible or
// you will be jeopardizing worker threads which could be catastrophic
// in a web application. Make sure you don't sleep here and if you were
// to perform some I/O intensive operation make sure you use asynchronous
// API and IO completion ports for increased scalability
},// optional state object to pass to the method
null,// Execute the method after 5 seconds
TimeSpan.FromSeconds(5),// Set this to false to execute it repeatedly every 5 seconds
false
);
如果您的意思是别的话,请不要犹豫,为您的问题提供更多细节.
