SSLv3协议、TLSv1.2协议配置不对导致javax.ws.rs.ProcessingException: java.net.SocketException: Connection reset

SSl：Secure Sockets Layer 安全套接层

TLS:Transport Layer Security传输层安全

是为网络通信提供安全及数据完整性的一种安全协议。TLS与SSL在传输层对网络连接进行加密。(见百度)

场景描述：将公司请求第三方公司的接口协议由http改成https后，出现了请求套接字异常的情况，第三方公司也收不到具体的请求，具体异常如下,

javax.ws.rs.ProcessingException: java.net.SocketException: Connection reset
at org.glassfish.jersey.client.internal.HttpUrlConnector.apply(HttpUrlConnector.java:287)
at org.glassfish.jersey.client.ClientRuntime.invoke(ClientRuntime.java:252)
at org.glassfish.jersey.client.JerseyInvocation$1.call(JerseyInvocation.java:684)
at org.glassfish.jersey.client.JerseyInvocation$1.call(JerseyInvocation.java:681)
at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
at org.glassfish.jersey.internal.Errors.process(Errors.java:228)
at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:444)
at org.glassfish.jersey.client.JerseyInvocation.invoke(JerseyInvocation.java:681)
at org.glassfish.jersey.client.JerseyInvocation$Builder.method(JerseyInvocation.java:411)
at org.glassfish.jersey.client.JerseyInvocation$Builder.get(JerseyInvocation.java:311)
at com.baoxian.payment.UnionPayPayment.request(UnionPayPayment.java:323)
...

Caused by: java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(SocketInputStream.java:209)
at java.net.SocketInputStream.read(SocketInputStream.java:141)
at sun.security.ssl.InputRecord.readFully(InputRecord.java:465)
at sun.security.ssl.InputRecord.read(InputRecord.java:503)
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:973)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387)
at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:559)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1513)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1441)
at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:480)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:338)
at org.glassfish.jersey.client.internal.HttpUrlConnector._apply(HttpUrlConnector.java:394)
at org.glassfish.jersey.client.internal.HttpUrlConnector.apply(HttpUrlConnector.java:285)
... 66 more

实现http协议的代码为：

 import java.security.SecureRandom;
 import java.security.cert.X509Certificate;

 import javax.net.ssl.HostnameVerifier;
 import javax.net.ssl.SSLContext;
 import javax.net.ssl.SSLSession;
 import javax.net.ssl.TrustManager;
 import javax.net.ssl.X509TrustManager;
 import javax.ws.rs.client.Client;
 import javax.ws.rs.client.ClientBuilder;

 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;

 public class ClientUtil {
     private static Log log = LogFactory.getLog(ClientUtil.class);
     private static SSLContext sslContext = null;
     private static HostnameVerifier hv = null;
     public static Client sslClient = null;
     public static Client client = null;
     static{
         client = ClientBuilder.newClient();
         try {
             sslContext = SSLContext.getInstance("SSLv3");
             sslContext.init(null, new TrustManager[] { new X509TrustManager() {
                 public X509Certificate[] getAcceptedIssuers() {
                     return new X509Certificate[0];
                 }

                 public void checkClientTrusted(X509Certificate[] certs, String authType) {
                 }

                 public void checkServerTrusted(X509Certificate[] certs, String authType) {
                 }
             } }, new SecureRandom());
         } catch (Exception e) {
             log.error("SSL失败", e);
         }
         hv = new HostnameVerifier() {
             public boolean verify( String arg0, SSLSession arg1 ) { return true; }
         };
         sslClient = ClientBuilder.newBuilder().hostnameVerifier(hv).sslContext(sslContext).build();
     }
 }

调用ClientUtil类的代码

         url = url + "?data=" + URLEncoder.encode(jsonObject.toJSONString(), "UTF-8");
         log.info("银联请求: type: " + transType + ", URL:" + url);

         Response response = ClientUtil.client.
                 .target(url)
                 .request()
                 .get();

这里的代码写死了只能用SSLv3安全协议，一运行的时候就报连接错误。可是，同样的请求放到google浏览器上请求就可以通过。

把请求复制到google浏览器请求栏，按F12,点击enter键，查看Security菜单栏输出的网页内容，发现这个请求接受TLS1.2安全协议

为了不影响其它类使用SSL协议，对这个类进行重写。重写后类，新增了获取制定安全协议的方法，支持指定安全协议的请求。

 import java.security.SecureRandom;
 import java.security.cert.X509Certificate;

 import javax.net.ssl.HostnameVerifier;
 import javax.net.ssl.SSLContext;
 import javax.net.ssl.SSLSession;
 import javax.net.ssl.TrustManager;
 import javax.net.ssl.X509TrustManager;
 import javax.ws.rs.client.Client;
 import javax.ws.rs.client.ClientBuilder;

 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;

 public class ClientUtil {
     private static Log log = LogFactory.getLog(ClientUtil.class);
     private static SSLContext sslContext = null;
     private static HostnameVerifier hv = null;
     public static Client sslClient = null;
     public static Client client = null;
     private static TrustManager simpleTrust=null;
     static{
         client = ClientBuilder.newClient();
         try {
             sslContext = SSLContext.getInstance("SSLv3");
             simpleTrust=new X509TrustManager() {
                 public X509Certificate[] getAcceptedIssuers() {
                     return new X509Certificate[0];
                 }

                 public void checkClientTrusted(X509Certificate[] certs, String authType) {
                 }

                 public void checkServerTrusted(X509Certificate[] certs, String authType) {
                 }
             };
             sslContext.init(null, new TrustManager[] { simpleTrust}, new SecureRandom());
         } catch (Exception e) {
             log.error("SSL失败", e);
         }
         hv = new HostnameVerifier() {
             public boolean verify( String arg0, SSLSession arg1 ) { return true; }
         };
         sslClient = ClientBuilder.newBuilder().hostnameVerifier(hv).sslContext(sslContext).build();
     }

     public static Client getSslClient(String protocol)
     {
         try {
             SSLContext sslContextTmp= SSLContext.getInstance(protocol);
             sslContextTmp.init(null, new TrustManager[] { simpleTrust}, new SecureRandom());
             return ClientBuilder.newBuilder().hostnameVerifier(hv).sslContext(sslContextTmp).build();
         }
         catch (Exception ex)
         {
             return ClientBuilder.newBuilder().hostnameVerifier(hv).sslContext(sslContext).build();
         }
     }
 }

改正后的调用方法

         url = url + "?data=" + URLEncoder.encode(jsonObject.toJSONString(), "UTF-8");

         Response response = ClientUtil.getSslClient("TLSv1.2")
                 .target(url)
                 .request()
                 .get();

说明：不同第三方公司支持https协议的时候可以用不同安全协议，对于不同的情况要予以考虑。