如何在java.net.URLConnection上指定本地地址？ [英] How can I specify the local address on a java.net.URLConnection?

问题描述

我的Tomcat实例正在侦听多个IP地址，但我想控制打开 URLConnection 时使用的源IP地址。

My Tomcat instance is listening to multiple IP addresses, but I want to control which source IP address is used when opening a URLConnection.

我该如何指定？

推荐答案

这应该做的技巧：

URL url = new URL(yourUrlHere);
Proxy proxy = new Proxy(Proxy.Type.DIRECT, 
    new InetSocketAddress( 
        InetAddress.getByAddress(
            new byte[]{your, ip, interface, here}), yourTcpPortHere));
URLConnection conn = url.openConnection(proxy);

你完成了。
别忘了很好地处理异常并且当然更改值以适应您的情况。

And you are done. Dont forget to handle exceptions nicely and off course change the values to suit your scenario.

啊我省略了导入语句

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