可以通过应用以下代码来解决以下问题，这些代码以不安全的方式连接到受SSL保护的站点。（注意：为了使用cert启用连接到SSL站点，您需要添加tomcat
SSL配置）。
以下代码可以正常工作。
import java.security.KeyManagementException;import java.security.NoSuchAlgorithmException;import java.security.cert.X509Certificate;import javax.net.ssl.HostnameVerifier;import javax.net.ssl.HttpsURLConnection;import javax.net.ssl.SSLContext;import javax.net.ssl.SSLSession;import javax.net.ssl.TrustManager;import javax.net.ssl.X509TrustManager;import org.springframework.http.HttpEntity;import org.springframework.http.HttpHeaders;import org.springframework.http.HttpMethod;import org.springframework.http.MediaType;import org.springframework.web.client.RestTemplate;static { disableSslVerification(); } private static void disableSslVerification() { try{ // Create a trust manager that does not validate certificate chains TrustManager[] trustAllCerts = new TrustManager[] {new X509TrustManager() { public X509Certificate[] getAcceptedIssuers() { return null; } public void checkClientTrusted(X509Certificate[] certs, String authType) { } public void checkServerTrusted(X509Certificate[] certs, String authType) { } } }; // Install the all-trusting trust manager SSLContext sc = SSLContext.getInstance("SSL"); sc.init(null, trustAllCerts, new java.security.SecureRandom()); HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory()); // Create all-trusting host name verifier HostnameVerifier allHostsValid = new HostnameVerifier() { public boolean verify(String hostname, SSLSession session) { return true; } }; // Install the all-trusting host verifier HttpsURLConnection.setDefaultHostnameVerifier(allHostsValid); } catch (NoSuchAlgorithmException e) { e.printStackTrace(); } catch (KeyManagementException e) { e.printStackTrace(); } } public static void main(String[] args) { HttpHeaders headers = new HttpHeaders(); headers.add("Accept", "application/json"); headers.add("Content-Type", MediaType.APPLICATION_FORM_URLENCODED.toString()); headers.add("Authorization", "Basic XXXXXXXXXXXXXXXXXXXXXXXXXXXX"); String url = "https://XXXXXXXXXXXXX:XXXX/token"; String dataJSON = "grant_type=password&username=XXXXX&password=XXXXX"; RestTemplate restTemplate = new RestTemplate(); HttpEntity<String> entity = new HttpEntity<String>(dataJSON,headers); HttpEntity<String> response = restTemplate.exchange(url, HttpMethod.POST, entity, String.class); System.out.println("O/P : "+response.getBody()); }
