本文簡述一下怎麼使用restTemplate來訪問https。spring
<dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpclient</artifactId> <version>4.5.3</version> </dependency>
這裏使用httpclient的factoryapache
@Bean public RestTemplate restTemplate() throws KeyStoreException, NoSuchAlgorithmException, KeyManagementException { TrustStrategy acceptingTrustStrategy = (X509Certificate[] chain, String authType) -> true; SSLContext sslContext = org.apache.http.ssl.SSLContexts.custom() .loadTrustMaterial(null, acceptingTrustStrategy) .build(); SSLConnectionSocketFactory csf = new SSLConnectionSocketFactory(sslContext); CloseableHttpClient httpClient = HttpClients.custom() .setSSLSocketFactory(csf) .build(); HttpComponentsClientHttpRequestFactory requestFactory = new HttpComponentsClientHttpRequestFactory(); requestFactory.setHttpClient(httpClient); RestTemplate restTemplate = new RestTemplate(requestFactory); return restTemplate; }
@Test public void testHttps(){ String url = "https://free-api.heweather.com/v5/forecast?city=CN101080101&key=5c043b56de9f4371b0c7f8bee8f5b75e"; String resp = restTemplate.getForObject(url, String.class); System.out.println(resp); }