WARN: Establishing SSL connection

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在我们使用连接MySQL数据库时会出现这样的提示： Tue Aug 29 13:24:29 CST 2017 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. 1 2 3 4 5 6 7 8 翻译如下： 不推荐服务器身份验证，不需要建立SSL连接。根据MySQL 5.5.45 +，+，+ 5.6.26 5.7.6要求SSL连接必须建 立明确的选项默认情况下如果不设置。符合现有的应用程序不使用SSL的verifyservercertificate属性设置 为“false”。你需要显式禁用SSL设置usessl = false，或设置usessl =真实提供服务器证书验证信任库 1 2 3 4 由此可见解决方案如下 在URL加入useSSL=true或者false即可，如下所示: //原先报错程序 Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/scott,"root", "123456"); //更改后正确程序 Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/scott?useSSL=false", "root", "123456"); //也可以使用如下 Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/scott?useUnicode=true&characterEncoding=utf-8&useSSL=false", "root" 

===========================

url 加&useSSL=false

spring.datasource.url=jdbc:mysql://**:3306/xxx.db?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull&autoReconnect=true&useSSL=false

WARN: Establishing SSL connection

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原文地址：https://www.cnblogs.com/gzhbk/p/9692613.html