Zuul代理背后的Spring重定向URL问题 [英] Spring redirect url issue when behind Zuul proxy
问题描述
过去2天,我一直在尝试解决一个奇怪的重定向问题,但没有成功.
I've been trying to get to the bottom of a strange redirection issue for the past 2 days without success.
基于spring-cloud示例项目,我已经配置了Eureka,Zuul和在Zuul之后运行的基本服务.
Based on the spring-cloud example projects, I've configured Eureka, Zuul and a basic service that runs behind Zuul.
我有以下方法;
@RequestMapping(method = RequestMethod.POST, value = "/register")
public String registerDevice(Principal principal, String response) {
// ...
return "redirect:/account";
}
设置表单以将其发布到代理URL,如下所示;
The form is setup to post to the proxied URL as follows;
POST https://localhost:8443/service/register
(Zuul在localhost:8443上运行).
(Zuul is running on localhost:8443).
本地服务的URL(未代理)为; http://localhost:9001/register
The URL for the local service (non-proxied) would be; http://localhost:9001/register
通过上述方法可以正确地代理POST调用,但是发送到浏览器的重定向位置是服务的未代理URL; http://localhost:9001/account
The POST call is proxied correctly through to the above method, however the redirect location sent to the browser is the non-proxied URL of the service; http://localhost:9001/account
Zuul代理肯定会发送正确的 x-forwarded-* 标头,因此我希望Spring中的视图解析器会基于x-forwarded值构建正确的重定向.
The Zuul proxy is definitely sending the correct x-forwarded-* headers, so I would expect the view resolver in Spring to build the correct redirect based on the x-forwarded values.
为证明报头已正确发送,我重新配置了以下方法;
To prove the headers are sent correctly, I reconfigured the method as follows;
@RequestMapping(method = RequestMethod.POST, value = "/register")
public void registerDevice(Principal, String response, HttpServletResponse response) {
// ...
String rUrl = ServletUriComponentsBuilder.fromCurrentContextPath().path("/account").build().toUriString();
servletResponse.sendRedirect(rUrl);
}
正确将浏览器重定向到代理位置; https://localhost:8443/service/account
Which correctly redirects the browser to the proxied location; https://localhost:8443/service/account
这是一个错误,还是预期的行为?我以为使用重定向:"是为了兑现从代理传递过来的转发标头.
Is this a bug, or is it expected behaviour? I thought using "redirect:" was meant to honour the forward headers passed from a proxy.
推荐答案
您可以看到redirect:/account".
As you can see RedirectView
ignores X-FORWARDED-*
headers.
Simply put, you can't use "redirect:/account"
.
代替实例化RedirectView
并进行相应配置:
Instead instantiate a RedirectView
and configure it accordingly:
RedirectView redirect = new RedirectView("account");
redirect.setHosts(new String[]{ request.getHeader("X-FORWARDED-HOST") });
从Spring Framework 4.3开始(当前为RC1)
Since Spring Framework 4.3 (currently RC1) setHosts
method is available.
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