WARN: Establishing SSL connection without server's identity verification is not recommended

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WARN: Establishing SSL connection without server’s identity verification is not recommended

不建议建立没有服务器身份验证的SSL连接

1、应用程序启动警告：不建议建立没有服务器身份验证的SSL连接

Sun Sep 30 14:00:37 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.

译文：
根据MySQL 5.5.45以上的版本的规定，如果未设置显式选项，则默认情况下必须建立5.6.26+和5.7.6+要求的SSL连接。对于不使用SSL的现有应用程序，ValuyServer证书属性设置为“false”。您需要通过设置useSSL=false来显式禁用SSL，或者设置useSSL=true并提供用于服务器证书验证的信任库

2、解决方案

1、配置 useSSL=false 显式的禁用SSL选项
jdbc:mysql://localhost:3306/finaciall2?useUnicode=true&characterEncoding=utf-8&useSSL=false
2、配置 useSSL=true 使用SSL连接并配置SSL 证书