最近在做一個需求，用到了https進行接口互動，在測試環境報如下錯：
10:20:21,667 ERROR [stderr](http-executor-threads - 39) java.lang.IllegalArgumentException: TLSv1.2
10:20:21,667 ERROR [stderr] (http-executor-threads - 39) java.lang.IllegalArgumentException: TLSv1.2
10:20:21,668 ERROR [stderr] (http-executor-threads - 39) at com.sun.net.ssl.internal.ssl.ProtocolVersion.valueOf(ProtocolVersion.java:133)
10:20:21,669 ERROR [stderr] (http-executor-threads - 39) at com.sun.net.ssl.internal.ssl.ProtocolList.<init>(ProtocolList.java:38)
10:20:21,670 ERROR [stderr] (http-executor-threads - 39) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.setEnabledProtocols(SSLSocketImpl.java:2218)
10:20:21,671 ERROR [stderr] (http-executor-threads - 39) at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:418)
10:20:21,671 ERROR [stderr] (http-executor-threads - 39) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:166)
10:20:21,672 ERROR [stderr] (http-executor-threads - 39) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:133)
10:20:21,676 ERROR [stderr] (http-executor-threads - 39) at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
10:20:21,676 ERROR [stderr] (http-executor-threads - 39) at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
10:20:21,677 ERROR [stderr] (http-executor-threads - 39) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:875)
10:20:21,678 ERROR [stderr] (http-executor-threads - 39) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:807)
10:20:21,679 ERROR [stderr] (http-executor-threads - 39) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571)
10:20:21,680 ERROR [stderr] (http-executor-threads - 39) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:511)
10:20:21,680 ERROR [stderr] (http-executor-threads - 39) at javax.servlet.http.HttpServlet.service(HttpServlet.java:754)
10:20:21,681 ERROR [stderr] (http-executor-threads - 39) at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
10:20:21,682 ERROR [stderr] (http-executor-threads - 39) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329)
10:20:21,682 ERROR [stderr] (http-executor-threads - 39) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)
10:20:21,683 ERROR [stderr] (http-executor-threads - 39) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275)
10:20:21,684 ERROR [stderr] (http-executor-threads - 39) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
10:20:21,685 ERROR [stderr] (http-executor-threads - 39) at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153)
10:20:21,685 ERROR [stderr] (http-executor-threads - 39) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155)
10:20:21,686 ERROR [stderr] (http-executor-threads - 39) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
10:20:21,687 ERROR [stderr] (http-executor-threads - 39) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:567)
10:20:21,688 ERROR [stderr] (http-executor-threads - 39) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
10:20:21,688 ERROR [stderr] (http-executor-threads - 39) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368)
10:20:21,689 ERROR [stderr] (http-executor-threads - 39) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877)
10:20:21,690 ERROR [stderr] (http-executor-threads - 39) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671)
10:20:21,691 ERROR [stderr] (http-executor-threads - 39) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:518)
10:20:21,691 ERROR [stderr] (http-executor-threads - 39) at org.jboss.threads.SimpleDirectExecutor.execute(SimpleDirectExecutor.java:33)
10:20:21,692 ERROR [stderr] (http-executor-threads - 39) at org.jboss.threads.QueueExecutor.runTask(QueueExecutor.java:801)
10:20:21,693 ERROR [stderr] (http-executor-threads - 39) at org.jboss.threads.QueueExecutor.access$100(QueueExecutor.java:45)
10:20:21,693 ERROR [stderr] (http-executor-threads - 39) at org.jboss.threads.QueueExecutor$Worker.run(QueueExecutor.java:821)
10:20:21,694 ERROR [stderr] (http-executor-threads - 39) at java.lang.Thread.run(Thread.java:662)
10:20:21,694 ERROR [stderr] (http-executor-threads - 39) at org.jboss.threads.JBossThread.run(JBossThread.java:122)
IllegalArgumentException非法的參數值，相同代碼我再本地試了一下，沒有任何問題。我用戶端是用jdk裡的javax.net.ssl.HttpsURLConnection;寫的，沒有用httpclient。本地和測試環境唯一不同的就是JDK版本了。我本地用的是JDK1.6.0_11,測試環境是JDK1.6.0_45。我在本地修改代碼添加如下：
System.setProperty("https.protocols", "TLSv1.2,SSLv3");這時候本地也會報如上錯誤.
通過下面這段代碼可以檢視本地支援的TLS協定。
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]);
}
}
我本地執行完如下圖：
測試環境執行結果如下：
跟我本地是一樣的，都是隻支援TLSv1,是以我在代碼裡添加System.setProperty("https.protocols", "TLSv1,SSLv3");即指定運作的protocols協定。這樣在我本地和測試環境都能正常執行。