问题
I need to request things and get information from other domains. I know javascript can not do this due to the same origin policy. My other option is to make proxy requests through my server. I do not want the requests coming from my server's IP nor do I want to create additional load for my server and would prefer the client do it.
Is it possible to use a Java applet to do this? Manually configuring security settings is not an issue.
回答1:
Java applets do implement the same origin policy, much the same way as Flash. Java will prevent applet-based cross-origin calls if the target server does not have a properly defined publicly accessible crossdomain.xml.
A simple crossdomain.xml would look like this:
<?xml version="1.0"?>
<cross-domain-policy>
<allow-access-from domain="*" />
</cross-domain-policy>
来源：https://stackoverflow.com/questions/19037659/can-i-violate-the-same-origin-policy-with-a-java-applet