我编写了一个使用java HttpsUrlConnection访问服务器的演示。 我使用MyX509TrustManager实现X509TrustManager接口以信任所有证书。
它适用于JDK7和JDK8，但是当使用JDK6和JDK5时，会发生错误：
javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:882)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1188)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1215)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1199)
at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:434)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:166)
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1014)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java:230)
对于服务器端，在Tomcat 8和JDK8上运行。
编辑我添加-Djavax.net.debug = ssl，握手并找到以下内容：
*** main, WRITE: TLSv1 Handshake, length = 177 main, WRITE: SSLv2 client hello message, length = 173
main, received EOFException: error main, handling exception: javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake
main, SEND TLSv1 ALERT: fatal, description = handshake_failure
main, WRITE: TLSv1 Alert, length = 2 main, called closeSocket()
main, called close() main, called closeInternal(true)