如何使用jQuery ajax在不同的主机上检索和显示html / asp / aspx页面？

Question

I have an html page, which is a dynamically created asp/aspx page on http://host2.mydomain.com . I have no control over the html page. I cannot modify it in any such way. I cannot modify this page; so, setting document.domain is out of the question, unfortunately. This html page is compiled by a 3rd-party vendor and the code is close-source; I cannot view it or change it. I want to retrieve and display this page on http://host1.mydomain.com/page1.jsp using Ajax.

FYI: host1 is being served by IIS 7 and Apache Tomcat (for JSP pages). And host2 is using IIS 7 and ASP.

How can I retrieve this page using a Ajax POST request?

Thank you.

Answer 1

You can't with a standard AJAX call due to cross-domain policies, you would have to use JSONP or a form of JSONP http://en.wikipedia.org/wiki/JSONP

Also, a common "gotcha" is that the cross-domain policies prevent secure to non-secure ajax as well. So a https:// page cannot request a http:// page and vice versa/

Answer 2

YQL http://developer.yahoo.com/yql /
and
JSON-P http://en.wikipedia.org/wiki/JSONP

Answer 3

By setting proper CORS headers if you are using modern browsers. Have a look here

Answer 4

You are just going across subdomains so can do it using an iframe, look to this question - A question about cross-domain (subdomain) ajax request

The solution referenced: http://www.tomhoppe.com/index.php/2008/03/cross-sub-domain-javascript-ajax-iframe-etc/

Answer 5

您编写服务器端脚本以检索页面内容，然后使用Ajax请求您的脚本