JDBC连接Mysql8.0驱动版本过低报错

JDBC连接Mysql8.0.11版本出现问题,不停循环报错 错误信息如下:

报错信息:

Fri Mar 29 21:39:01 CST 2019 WARN: Establishing SSL connection without server&＃39;s identity verification is not recommended. According to MySQL 5.5.45&＃43;, 5.6.26&＃43; and 5.7.6&＃43; requirements SSL connection must be established by default if explicit option isn&＃39;t set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to &＃39;false&＃39;. You need either to explicitly disable SSL by setting useSSL&＃61;false, or set useSSL&＃61;true and provide truststore for server certificate verification.
ERROR [Druid-ConnectionPool-Create-2085079540] - create connection SQLException, url: jdbc:mysql://localhost:3306/phone, errorCode 0, state 08001
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server.at sun.reflect.GeneratedConstructorAccessor36.newInstance(Unknown Source)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:404)at com.mysql.jdbc.Util.getInstance(Util.java:387)at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:917)at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:896)at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:885)at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:860)at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2332)at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2085)at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:795)at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:44)at sun.reflect.GeneratedConstructorAccessor27.newInstance(Unknown Source)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:404)at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:400)at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:327)at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1513)at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1578)at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2451)
Caused by: java.lang.NullPointerExceptionat com.mysql.jdbc.ConnectionImpl.getServerCharset(ConnectionImpl.java:3005)at com.mysql.jdbc.MysqlIO.sendConnectionAttributes(MysqlIO.java:1916)at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1845)at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1215)at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2255)at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2286)... 12 more

解决方案:

Mysql是8.0版本的 ,但是项目中用的jdbc驱动包5.1.31,将jdbc驱动包改为8.0.13后不再报错