为 Jersey Client 设置代理，可以使用带有 ClientHandler 参数的构造方法创建 Client 实例。
public static void main(String[] args) {
final Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress("127.0.0.1", 8080));
Client client = new Client(new URLConnectionClientHandler(new HttpURLConnectionFactory() {
public HttpURLConnection getHttpURLConnection(URL url) throws IOException {
return (HttpURLConnection) url.openConnection(proxy);
}
}));
WebResource resource = client.resource("http://example.com");
ClientResponse response = resource.get(ClientResponse.class);
System.out.println(String.format("%s %s",
response.getStatusInfo().getStatusCode(),
response.getStatusInfo().getReasonPhrase()));
}