在scala中连接mysql时出现错误：Establishing SSL connection without server's identity verification is not recomm

在Scala中连接mysql时，输入命令：

scala> rebuyDF.write.mode("append").jdbc("jdbc:mysql://localhost:3306/dbtaobao", "dbtaobao.rebuy", prop)

出现错误如下：

Wed Nov 28 20:41:12 CST 2018 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.
 

warning中已经提示了两种办法，因为只是测试，没有必要弄证书，所以在连接后添加一个useSSL=false即可，如：

scala> rebuyDF.write.mode("append").jdbc("jdbc:mysql://localhost:3306/dbtaobao?useSSL=false", "dbtaobao.rebuy", prop)