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。
