1.设置host
127.0.0.1 cookie1.ivy.com 127.0.0.1 cookie2.ivy.com 127.0.0.1 ivy.com
2.应用Cookie2的controller.(实际可以直接浏览器查看Cookie)
@RestController
public class HelloController {
    @GetMapping("hello")
    public String sayHello(HttpServletRequest request) {
        System.out.println("Cookie:");
        Cookie[] cookies = request.getCookies();
        if (cookies != null) {
            Arrays.asList(request.getCookies()).forEach(item -> {
                System.out.print("key:" + item.getName() + "-" + "value:" + item.getValue() + "-" + "domain:" + item.getDomain() + "-" + "path:" + item.getPath() + "-" + "maxAge:" + item.getMaxAge());
                System.out.println();
            });
        }
        return "hello";
    }
}
原文:https://www.cnblogs.com/itivy/p/9981017.html