javax.net.ssl.SSLHandshakeException: No appropriate protocol报错解决

一、问题描述

用java开发了一个简单的发送邮件的程序，本地运行正常，但是上传到服务器就出现报错

	javax.net.ssl.SSLHandshakeException: No appropriate protocol (protocol is disabled or cipher suites are inappropriate)
	at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1972)
	at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:642)
	at javax.mail.Service.connect(Service.java:317)
	at javax.mail.Service.connect(Service.java:176)
	at javax.mail.Service.connect(Service.java:125)
	at javax.mail.Transport.send0(Transport.java:194)
	at javax.mail.Transport.send(Transport.java:124)

二、问题解决

1、找到jdk目录/jre/lib/security/java.security，去掉jdk.tls.disabledAlgorithm中的SSLv3、TLSv1、TLSv1.1，参考https://blog.csdn.net/Wing_kin666/article/details/116449722

2、但是上面方法并没有解决问题，还需要执行以下命令，才最终解决报错，参考https://stackoverflow.com/questions/38205947/sslhandshakeexception-no-appropriate-protocol#

update-crypto-policies --set LEGACY