除了網上能搜到的解決方案，再檢查一下JVM系統參數-Djsse.enableSNIExtension有沒有被設定為false
官方介紹
jsse.enableSNIExtension system property. Server Name Indication (SNI) is a TLS extension, defined in RFC 4366. It enables TLS connections to virtual servers, in which multiple servers for different network names are hosted at a single underlying network address.
Some very old SSL/TLS vendors may not be able handle SSL/TLS extensions. In this case, set this property to false to disable the SNI extension.
refer http://docs.oracle.com/javase/7/docs/technotes/guides/security/jsse/JSSERefGuide.html#Customization
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