新版Mysql 8.x版本连接JDBC 最新连接测试以及常见报错解决

最新推荐文章于 2025-08-01 12:09:03 发布

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最新推荐文章于 2025-08-01 12:09:03 发布 · 置顶 · 5.2k 阅读

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#mysql8.x版本 #jdbc与mysql新版本连接 #jdbc连接常见报错

因为学习一些框架需要与数据库连接，下载了新版mysql8.0版本去连接。发现连最简单的jdbc连接都出错，于是在Eclipse中测试新版本连接时遇到常见报错，遂记录。

1.测试Mysql8.x的连接

在这里插入图片描述

1.1 首先我们使用5.x的驱动包去连接，我们会出现以下异常

Sun Jul 21 21:57:28 CST 2019 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.
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server.
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
	at com.mysql.jdbc.Util.getInstance(Util.java:408)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:918)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:897)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:886)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:860)
	at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2330)
	at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083)
	at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806)
	at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstruct