调用https接口 报错：unable to find valid certification path

网上查了一大堆 基本都是 keytool导入证书

keytool -import -alias ee  -keystore "C:Program FilesJavajre1.8.0_221libsecuritycacerts" -file D:certee.cer -storepass changeit

但是：导入完之后我遇到了一个问题 莫名其妙的有时候好使有时候不好使

最终尝试了N+1次之后，发现 证书名字和别名是一个字母也提示添加成功 但是就是不好使，2个字母就好使（我也不知道什么原因）

RestTemplate POST 请求证书验证解决办法

final static RestTemplate restTemplate = new RestTemplate(generateHttpsRequestFactory());

private static HttpComponentsClientHttpRequestFactory generateHttpsRequestFactory() {
  try {
    TrustStrategy acceptingTrustStrategy = (x509Certificates, authType) -> true;
    SSLContext sslContext = SSLContexts.custom().loadTrustMaterial(null, acceptingTrustStrategy)
        .build();
    SSLConnectionSocketFactory connectionSocketFactory =
        new SSLConnectionSocketFactory(sslContext, new NoopHostnameVerifier());

    HttpClientBuilder httpClientBuilder = HttpClients.custom();
    httpClientBuilder.setSSLSocketFactory(connectionSocketFactory);
    CloseableHttpClient httpClient = httpClientBuilder.build();
    HttpComponentsClientHttpRequestFactory factory = new HttpComponentsClientHttpRequestFactory();
    factory.setHttpClient(httpClient);
    factory.setConnectTimeout(5 * 1000);
    factory.setReadTimeout(5 * 1000);
    return factory;
  } catch (Exception e) {
    throw new RuntimeException("创建HttpsRestTemplate失败", e);
  }
}