restTemplate.exchange 响应HttpClientErrorException: 401 Unauthorized_401 unauthorized resttemplate

参考
https://blog.csdn.net/sinat_27818621/article/details/118389966
https://blog.csdn.net/m0_37779977/article/details/105707183

@Bean
	public ClientHttpRequestFactory clientFactory(ProxyConfig proxyConfig) {
		Registry<ConnectionSocketFactory> registry = RegistryBuilder.<ConnectionSocketFactory>create()
				.register("http", PlainConnectionSocketFactory.getSocketFactory())
				.register("https", SSLConnectionSocketFactory.getSocketFactory()).build();

		PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager(registry);
		connectionManager.setMaxTotal(100);
		connectionManager.setDefaultMaxPerRoute(200);

		RequestConfig requestConfig = RequestConfig.custom()
							.setSocketTimeout(60000)
							.setConnectTimeout(60000)
							.setConnectionRequestTimeout(10000)
				.setCookieSpec(CookieSpecs.STANDARD)
				.build();

		ServiceUnavailableRetryStrategy serviceUnavailStrategy = new ServiceUnavailableRetryStrategy() {
			@Override
			public boolean retryRequest(HttpResponse httpResponse, int executionCount, HttpContext httpContext) {
				log.info("请求超时,重试Strategy{}次.", executionCount);
				return executionCount < 3;
			}

			@Override
			public long getRetryInterval() {
				return 1000;
			}
		};
		CloseableHttpClient closeableHttpClient = HttpClientBuilder.create()
				.setDefaultRequestConfig(requestConfig)
				.setConnectionManager(connectionManager)
				.setDefaultRequestConfig(requestConfig)
				.setProxy(proxyConfig.getEnabled() ? new HttpHost(proxyConfig.getHost(), proxyConfig.getPort(), "http") : null)
				.setRetryHandler((exception, executionCount, context) -> {
					if (executionCount > 3) {
						return false;
					}

					String msg = exception.getMessage();
					System.out.println("msg = " + msg);
					if (msg.equals("Read timed out")) {
						log.info("请求超时,Handler重试{}次.", executionCount);
						return true;
					}
					return false;
				})
				.setServiceUnavailableRetryStrategy(serviceUnavailStrategy)
				.build();

		return new HttpComponentsClientHttpRequestFactory(closeableHttpClient);
	}
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疑问:setRetryHandler和setServiceUnavailableRetryStrategy按理说设置其中一个就ok,设置前者时候有时候不重试,回头有时间再整理