ASP.NET：如何每隔几分钟从Web服务器获取数据

Question

I need to fetch CSV file from a webserver every few minutes.

Here's what I am planning to do: I will create a webservice "GetCSV.asmx" which will get CSV file from that webserver.

I will create another webservice "RegularCall.asmx" which will call "GetCSV.asmx" every few minutes.

Is my approach correct? Is there a better way of doing this?

I am using ASP.NET web application and JSON webservice for this.

NOTE: There will be NO user intervention and the solution I am looking for is similar to scheduling a task on the server...Can you please suggest a solution ?

Answer 1

If you can do it from a client side call, use jQuery $.ajax and javascript setTimer to pull on interval. Set the ajax call to load the web service.

Answer 2

You should know that you don't need to create different asmx files. You can create one and access individual methods within it.

Answer 3

Chad is right and this is a way you can call the ASMX WebService from JQuery . You just need to use,

<script language="JavaScript">
     setInterval( "CallWebServiceFromJquery()", 300000 );  
</script>

instead of 

OnClientClick="CallWebServiceFromJquery()"

Note : 300000 miliseconds = 5 minutes

I hope it would be helpful to you.