解决连接被拒的方法是什么:连接 [英] What is a work around for Connection refused: connect

问题描述

我正在尝试从另一个站点获取信息.当我尝试做

URL url = new URL("theSite");
url.getContent();

它抛出一个Connection refused: connect exception.这是否意味着该站点将不允许自动连接?还有另一种获取此信息的方法吗?

解决方案

这可能意味着几件事:

• 该站点出现问题并且正在主动断开连接(拒绝与超时不同，拒绝完全没有响应)
• 中间人可能拒绝了您的联系，例如防火墙，尽管如果您可以通过浏览器访问该站点，则不太可能
• 您使用的端口错误，即您输入https://时的意思是http://，反之亦然?
• 您的浏览器正在通过代理访问网站.检查浏览器的代理设置，并在url.openConnection(Proxy)
中使用它们

telnet是您的朋友，当您执行以下操作

telnet thesite 80 [或您需要的任何端口] GET/URL HTTP/1.0 主持人:网站

I am trying to pull information from another site. When I try and do

URL url = new URL("theSite");
url.getContent();

It throws a Connection refused: connect exception. Does this mean the site will not allow automated connections? Is there another way to get this information?

解决方案

It can mean several things:

• The site is having problems and is actively dropping connections (Refused is different from timed out, where no response was received at all)
• An intermediary may have refused your connection, e.g. a Firewall, although if you can access the site via a browser then this is not likely the case
• You are using the wrong port, i.e. did you mean http:// when you typed https:// or vice versa?
• Your browser is accessing the site via a proxy. Check the browsers proxy settings and use them in url.openConnection(Proxy)

telnet is your friend, what happens when you:

telnet thesite 80 [or whatever port you require] GET /URL HTTP/1.0 Host: thesite

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