OkHttp 3 客户端如何为故障转移指定备用地址？

Question

在文档中指出

If your service has multiple IP addresses OkHttp will attempt alternate addresses if the first connect fails

但我看不出您在构建请求对象时如何指定备用地址？

Answer 1

您可以尝试自己覆盖 DNS 以实现它。

client.setDns(new Dns() {
    @Override
    public List<InetAddress> lookup(String hostname) throws UnknownHostException {
        InetAddress ip1 = Inet4Address.getByName("127.0.0.1");
        InetAddress ip2 = Inet4Address.getByName("192.168.1.9");
        return Arrays.asList(ip1, ip2);
    }
});