Apache HTTP客户端，来自特定网络接口的请求

Question

我有4台互联网IP的机器，我想知道我是否可以让apache http客户端从特定的ip / network接口发出请求

Answer 1

使用HttpClient 4.3 API

    RequestConfig config = RequestConfig.custom()
            .setLocalAddress(InetAddress.getByAddress(new byte[] {127,0,0,1}))
            .build();
    HttpGet httpGet = new HttpGet("/stuff");
    httpGet.setConfig(config);
    CloseableHttpClient httpClient = HttpClients.createDefault();
    try {
        CloseableHttpResponse response = httpClient.execute(httpGet);
        try {
            // do something useful
        } finally {
            response.close();
        }
    } finally {
        httpClient.close();
    }

Answer 2

从未这样做，但API中有一个ClientConnectionOperator接口（以及一些工厂）来创建套接字。也许您可以实现自己的并使用具体的接口创建套接字。