1. jdk1.7預設是TSLv1, 但是可以支援TSLv1.1,TSLv1.2,jdk1.8預設是TSLv1.2

2.如果客服端是TSLv1,伺服器端設定是TSLv1.2，訪問會出現connection reset的錯誤.

3.既然jdk1.7可以支援TSLv1.2那麼肯定有辦法設定。網上找了好久，查詢谷姐資料看說法最多的是加入jvm啟動引數: -Dhttps.protocols=TLSv1.1,TLSv1.2 但是我試了沒有用，還是報錯。

4.用java程式查詢自己當前程式預設支援的SSL/TSL版本的方法。

public static void main(String[] args) throws Exception {
		SSLContext context = SSLContext.getInstance("TLS");
		context.init(null, null, null);

		SSLSocketFactory factory = (SSLSocketFactory) context.getSocketFactory();
		SSLSocket socket = (SSLSocket) factory.createSocket();

		String[] protocols = socket.getSupportedProtocols();

		System.out.println("Supported Protocols: " + protocols.length);
		for (int i = 0; i < protocols.length; i++) {
			System.out.println(" " + protocols[i]);
		}

		protocols = socket.getEnabledProtocols();

		System.out.println("Enabled Protocols: " + protocols.length);
		for (int i = 0; i < protocols.length; i++) {
			System.out.println(" " + protocols[i]);
		}

	}
 

  ①.開啟Java Control Panel.

  ②.高階。拉到最下面。

6.關門，放程式碼。繼承import org.apache.http.impl.client.DefaultHttpClient;類，改了一點東西，使用的時候用SSLClien就好了。

import org.apache.http.impl.client.DefaultHttpClient;

public class SSLClient extends DefaultHttpClient {
		public SSLClient() throws Exception {
			super();
			SSLContext ctx = SSLContext.getInstance("TLSv1.2");
			X509TrustManager tm = new X509TrustManager() {
				@Override
				public void checkClientTrusted(X509Certi<a target=_blank target="_blank" href="http://superuser.com/questions/747377/enable-tls-1-1-and-1-2-for-clients-on-java-7">http://superuser.com/questions/747377/enable-tls-1-1-and-1-2-for-clients-on-java-7</a>ficate[] chain, String authType) throws CertificateException {
				}

				@Override
				public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
				}

				@Override
				public X509Certificate[] getAcceptedIssuers() {
					return null;
				}
			};
			ctx.init(null, new TrustManager[] { tm }, null);
			org.apache.http.conn.ssl.SSLSocketFactory ssf = new org.apache.http.conn.ssl.SSLSocketFactory(ctx,
					org.apache.http.conn.ssl.SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
			ClientConnectionManager ccm = this.getConnectionManager();
			SchemeRegistry sr = ccm.getSchemeRegistry();
			sr.register(new Scheme("https", 443, ssf));
		}
	}
 

7.如果你覺得本文章有用並且對你有幫助，請用支付寶掃描下面的二維碼給我打賞。一塊兩塊不嫌少，一千兩千不嫌多。，

8.參考

  ①.http://stackoverflow.com/questions/21245796/javax-net-ssl-sslhandshakeexception-remote-host-closed-connection-during-handsh 

   ②.http://superuser.com/questions/747377/enable-tls-1-1-and-1-2-for-clients-on-java-7