自定义feignclient

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一些情况下可能需要必须自定义feignclient，下面是一个例子：对同一个feignclient接口实例化两个对象使用不同的配置和feign拦截器

@Import(FeignClientsConfiguration.class)
class FooController {

	private FooClient fooClient;

	private FooClient adminClient;

    	@Autowired
	public FooController(Decoder decoder, Encoder encoder, Client client, Contract contract) {
		this.fooClient = Feign.builder().client(client)
				.encoder(encoder)
				.decoder(decoder)
				.contract(contract)
				.requestInterceptor(new BasicAuthRequestInterceptor("user", "user"))
				.target(FooClient.class, "http://PROD-SVC");

		this.adminClient = Feign.builder().client(client)
				.encoder(encoder)
				.decoder(decoder)
				.contract(contract)
				.requestInterceptor(new BasicAuthRequestInterceptor("admin", "admin"))
				.target(FooClient.class, "http://PROD-SVC");
    }
}