实现步骤

Step1: 自定义ClientHttpRequestFactory

package com.example.demo.https;import org.springframework.http.client.SimpleClientHttpRequestFactory;import javax.net.ssl.*;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.InetAddress;
import java.net.Socket;
import java.security.cert.X509Certificate;/*** Desc: 使用Spring RestTemplete实现 Https需要自定义ClientHttpRequestFactory；* <p>* 参考链接：https://stackoverflow.com/questions/17619871/access-https-rest-service-using-spring-resttemplate*/
public class HttpsClientRequestFactory extends SimpleClientHttpRequestFactory {@Overrideprotected void prepareConnection(HttpURLConnection connection, String httpMethod) {try {if (!(connection instanceof HttpsURLConnection)) {throw new RuntimeException("An instance of HttpsURLConnection is expected");}HttpsURLConnection httpsConnection = (HttpsURLConnection) connection;TrustManager[] trustAllCerts = new TrustManager[]{new X509TrustManager() {public java.security.cert.X509Certificate[] getAcceptedIssuers() {return null;}public void checkClientTrusted(X509Certificate[] certs, String authType) {}public void checkServerTrusted(X509Certificate[] certs, String authType) {}}};SSLContext sslContext = SSLContext.getInstance("TLS");sslContext.init(null, trustAllCerts, new java.security.SecureRandom());httpsConnection.setSSLSocketFactory(new MyCustomSSLSocketFactory(sslContext.getSocketFactory()));httpsConnection.setHostnameVerifier(new HostnameVerifier() {@Overridepublic boolean verify(String s, SSLSession sslSession) {return true;}});super.prepareConnection(httpsConnection, httpMethod);} catch (Exception e) {e.printStackTrace();}}/*** We need to invoke sslSocket.setEnabledProtocols(new String[] {"SSLv3"});* see http://www.oracle.com/technetwork/java/javase/documentation/cve-2014-3566-2342133.html (Java 8 section)*/private static class MyCustomSSLSocketFactory extends SSLSocketFactory {private final SSLSocketFactory delegate;public MyCustomSSLSocketFactory(SSLSocketFactory delegate) {this.delegate = delegate;}@Overridepublic String[] getDefaultCipherSuites() {return delegate.getDefaultCipherSuites();}@Overridepublic String[] getSupportedCipherSuites() {return delegate.getSupportedCipherSuites();}@Overridepublic Socket createSocket(final Socket socket, final String host, final int port, final boolean autoClose) throws IOException {final Socket underlyingSocket = delegate.createSocket(socket, host, port, autoClose);return overrideProtocol(underlyingSocket);}@Overridepublic Socket createSocket(final String host, final int port) throws IOException {final Socket underlyingSocket = delegate.createSocket(host, port);return overrideProtocol(underlyingSocket);}@Overridepublic Socket createSocket(final String host, final int port, final InetAddress localAddress, final int localPort) throwsIOException {final Socket underlyingSocket = delegate.createSocket(host, port, localAddress, localPort);return overrideProtocol(underlyingSocket);}@Overridepublic Socket createSocket(final InetAddress host, final int port) throws IOException {final Socket underlyingSocket = delegate.createSocket(host, port);return overrideProtocol(underlyingSocket);}@Overridepublic Socket createSocket(final InetAddress host, final int port, final InetAddress localAddress, final int localPort) throwsIOException {final Socket underlyingSocket = delegate.createSocket(host, port, localAddress, localPort);return overrideProtocol(underlyingSocket);}private Socket overrideProtocol(final Socket socket) {if (!(socket instanceof SSLSocket)) {throw new RuntimeException("An instance of SSLSocket is expected");}((SSLSocket) socket).setEnabledProtocols(new String[]{"TLSv1"});return socket;}}
}

Step2: 设置RestTemplate的RequestFactory

package com.example.demo.https;import org.springframework.web.client.RestTemplate;/*** Desc: 参考链接：https://stackoverflow.com/questions/17619871/access-https-rest-service-using-spring-resttemplate*/
public class RestTempleteConfig {private RestTemplate httpRestTemplate;private RestTemplate httpsRestTemplate;public void init() {this.httpsRestTemplate = new RestTemplate(new HttpsClientRequestFactory());this.httpRestTemplate = new RestTemplate();}
}

参考链接

Access Https Rest Service using Spring RestTemplate