Using Proxy with HttpComponentsClientHttpRequestFactory and RestTemplate

Question

Can some one guide me how can I configure HttpComponentsClientHttpRequestFactory to use proxy server.

All examples I have seen are using SimpleClientH

Answer 1

Very simple way to let the HttpComponentsClientHttpRequestFactory use the standard java SystemProperties for proxy-stuff (see https://docs.oracle.com/javase/8/docs/technotes/guides/net/proxies.html)

is this:

        HttpRoutePlanner routePlanner = new SystemDefaultRoutePlanner(ProxySelector.getDefault());

    HttpClient httpClient = HttpClientBuilder
            .create()
            .setRoutePlanner(routePlanner)
            .build();
    restTemplate.setRequestFactory(
            new HttpComponentsClientHttpRequestFactory(httpClient));

That way, it even regards the nonProxyHosts setting.