Https、OpenSSL自建CA证书及签发证书、nginx单向认证、双向认证及使用Java访问
https://www.cnblogs.com/dreamingodd/p/7357029.html
如何使用Java访问双向认证的Https资源
https://www.cnblogs.com/dreamingodd/p/7491098.html
https://www.cnblogs.com/dreamingodd/p/7491098.html