Resolving AJAX only triggers a workaround for not updating the cache

Ajax| Solution | Cache today is doing JSP and backend connection, with Dojo's default Ajax submission code, began to read out the data,
Later I changed the data in the database, again set out just the data, found that the front desk called the method, but then indifferent. After checking some information, we found the solution.

Because it's a xmlhttprequest cache problem.
If you use get to submit data to a previously submitted address and read the data before you read it without going back to the background to reread the data workaround there are two

1 is to change method to post

2 If you must use GET, then add a &a= at the end of your submission parameter, and the most common is to add the current time to the "+new Date" (). GetTime () Add this after the argument

It's settled.