解决“WARN: Establishing SSL connection without server‘s identity verification is not recommended.”问题

今天学Spring Boot链接JDBC池遇到了这个问题：

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.

其实这个问题不大，程序也能正常运行成功，但是出于强迫症的我看见这串红字就贼不舒服，我把这个警告复制下来给翻译了一下，大概意思就是：

警告:不建议在没有服务器身份验证的情况下建立SSL连接。根据MySQL 5.5.45+，如果没有设置显式选项，默认情况下必须建立5.6.26+和5.7.6+要求的SSL连接。你需要通过设置useSSL=false显式禁用SSL，或者设置useSSL=true并为服务器证书验证提供信任存储。

这个问题很好解决，它的警告里已经提示了你修改方法：You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.

在我的xml配置文件里我把它改成了 "useSSL=false"

这样问题就成功解决啦~~~~

PS：如果false不行就改成true，值得注意的是在xml文件里"&"字符是不支持直接存储的，要进行字符的转义"&"，一定要找到你对应的xml文件哦

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