无法通过代理隧道。代理返回HTTP / 1.1 503服务不可用 [英] Unable to tunnel through proxy. Proxy returns HTTP/1.1 503 Service Unavailable

问题描述

我想连接到Intranet服务器，我需要连接的网址是：

I want to connect to an intranet server, the url that I need to connect is:

URLConnection conn = new URL("https://mywebsite").openConnection();

当我通过以下方式调用connect方法时：`

When I reach to the connect method call through:`

conn.connect();

我收到以下异常：

java.io.IOException: Unable to tunnel through proxy. Proxy rerurns HTTP/1.1 503 Service Unavailable"
at sun.net.www.protocol.httpHttpURLConnection.doTunneling

我如何解决这个例外，我尝试过在网上发布的许多解决方案，但没有任何运气。

How can I solve this exception, I have tried many solutions published on the net, but without any luck.

推荐答案

对我有帮助的是取消设置环境中的所有代理属性（ http_proxy 等env变量; java属性如 -Dhttp.proxyHost = .. 令人惊讶地没有效果。）我的网址（ https://mycompany.example。 com / service ）可直接访问（因为它位于内部网络上），但不能通过代理访问。

What helped to me was to unset all proxy properties in the environment (http_proxy etc env variables; java properties such as -Dhttp.proxyHost=.. had, surprisingly, no effect). My URL (https://mycompany.example.com/service) was accessible directly (because it was on the internal network) but not through the proxy.

因此请检查服务所在的位置并检查与代理相关的环境变量。

So check where the service lives and check for proxy-related environment variables.

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