通过HTTPClient4.5,基于JDK1.6
new SSLConnectionSocketFactory(builder.build(), new String[]{"SSLv2Hello", "SSLv3", "TLSv1", "TLSv1.2"}, null, NoopHostnameVerifier.INSTANCE);
经查询发现：
TLSv1.2 is supported since Java 7 so not working in Java 6.
If you set TLSv1.2 to SSL socket in Java 6 then you will get the exception: improperly. java.lang.IllegalArgumentException: TLSv1.2
解决方法：
方法一：修改JDK版本，使用JDK7,8；
方法二：将参数TLSv1.2去掉。