当前位置：移动技术网 > IT编程>数据库>Mysql > MyBatis 连接本地数据库拒绝访问错误：java.sql.SQLException: Access denied for user 'root

MyBatis 连接本地数据库拒绝访问错误：java.sql.SQLException: Access denied for user 'root

2018年03月22日 | 移动技术网IT编程 | 我要评论

开发工具：IntelliJ IDEA 2017.3.4 x64

开发框架：SpringBoot + MyBatis

数据库版本：MySQL 5.7.20

先来看一下报错信息：

---------------------------------------------------------------------------------------分割线---------------------------------------------------------------------------------------

　　Thu Mar 22 14:47:41 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.
2018-03-22 14:47:41.996 ERROR 5280 --- [reate-875394515] com.alibaba.druid.pool.DruidDataSource   : create connection error, url: jdbc:mysql://localhost:3306/user?useUnicode=true&characterEncoding=UTF-8, errorCode 1045, state 28000

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
   at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:963) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3966) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3902) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:875) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1712) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1228) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_161]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_161]
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_161]
   at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_161]
   at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1408) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1464) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:1969) ~[druid-1.0.18.jar:1.0.18]

2018-03-22 14:47:42.000 ERROR 5280 --- [reate-875394515] com.alibaba.druid.pool.DruidDataSource   : create connection error, url: jdbc:mysql://localhost:3306/user?useUnicode=true&characterEncoding=UTF-8, errorCode 1045, state 28000

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
   at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:963) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3966) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3902) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:875) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1712) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1228) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_161]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_161]
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_161]
   at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_161]
   at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1408) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1464) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:1969) ~[druid-1.0.18.jar:1.0.18]

2018-03-22 14:47:42.004 ERROR 5280 --- [reate-875394515] com.alibaba.druid.pool.DruidDataSource   : create connection error, url: jdbc:mysql://localhost:3306/user?useUnicode=true&characterEncoding=UTF-8, errorCode 1045, state 28000

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
   at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:963) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3966) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3902) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:875) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1712) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1228) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_161]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_161]
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_161]
   at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_161]
   at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1408) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1464) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:1969) ~[druid-1.0.18.jar:1.0.18]

2018-03-22 14:47:42.010 ERROR 5280 --- [reate-875394515] com.alibaba.druid.pool.DruidDataSource   : create connection error, url: jdbc:mysql://localhost:3306/user?useUnicode=true&characterEncoding=UTF-8, errorCode 1045, state 28000

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
   at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:963) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3966) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3902) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:875) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1712) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1228) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_161]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_161]
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_161]
   at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_161]
   at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1408) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1464) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:1969) ~[druid-1.0.18.jar:1.0.18]

2018-03-22 14:47:42.014 ERROR 5280 --- [reate-875394515] com.alibaba.druid.pool.DruidDataSource   : create connection error, url: jdbc:mysql://localhost:3306/user?useUnicode=true&characterEncoding=UTF-8, errorCode 1045, state 28000

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
   at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:963) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3966) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3902) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:875) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1712) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1228) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_161]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_161]
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_161]
   at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_161]
   at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1408) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1464) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:1969) ~[druid-1.0.18.jar:1.0.18]

Thu Mar 22 14:47:41 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.
Thu Mar 22 14:47:42 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.
Thu Mar 22 14:47:42 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.
Thu Mar 22 14:47:42 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.
2018-03-22 14:47:42.049 ERROR 5280 --- [reate-875394515] com.alibaba.druid.pool.DruidDataSource   : create connection error, url: jdbc:mysql://localhost:3306/user?useUnicode=true&characterEncoding=UTF-8, errorCode 1045, state 28000

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
   at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:963) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3966) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3902) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:875) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1712) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1228) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_161]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_161]
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_161]
   at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_161]
   at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1408) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1464) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:1969) ~[druid-1.0.18.jar:1.0.18]

Thu Mar 22 14:47:42 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.
2018-03-22 14:47:42.064 ERROR 5280 --- [reate-875394515] com.alibaba.druid.pool.DruidDataSource   : create connection error, url: jdbc:mysql://localhost:3306/user?useUnicode=true&characterEncoding=UTF-8, errorCode 1045, state 28000

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
   at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:963) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3966) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3902) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:875) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1712) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1228) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_161]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_161]
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_161]
   at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_161]
   at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1408) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1464) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:1969) ~[druid-1.0.18.jar:1.0.18]

Thu Mar 22 14:47:42 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.
Thu Mar 22 14:47:42 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.
2018-03-22 14:47:42.069 ERROR 5280 --- [reate-875394515] com.alibaba.druid.pool.DruidDataSource   : create connection error, url: jdbc:mysql://localhost:3306/user?useUnicode=true&characterEncoding=UTF-8, errorCode 1045, state 28000

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
   at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:963) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3966) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3902) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:875) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1712) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1228) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_161]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_161]
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_161]
   at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_161]
   at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1408) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1464) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:1969) ~[druid-1.0.18.jar:1.0.18]

2018-03-22 14:47:42.072 ERROR 5280 --- [reate-875394515] com.alibaba.druid.pool.DruidDataSource   : create connection error, url: jdbc:mysql://localhost:3306/user?useUnicode=true&characterEncoding=UTF-8, errorCode 1045, state 28000

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
   at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:963) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3966) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3902) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:875) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1712) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1228) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_161]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_161]
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_161]
   at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_161]
   at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1408) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1464) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:1969) ~[druid-1.0.18.jar:1.0.18]

Thu Mar 22 14:47:42 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.
Thu Mar 22 14:47:42 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.
2018-03-22 14:47:42.076 ERROR 5280 --- [reate-875394515] com.alibaba.druid.pool.DruidDataSource   : create connection error, url: jdbc:mysql://localhost:3306/user?useUnicode=true&characterEncoding=UTF-8, errorCode 1045, state 28000

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
   at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:963) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3966) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3902) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:875) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1712) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1228) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_161]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_161]
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_161]
   at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_161]
   at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1408) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1464) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:1969) ~[druid-1.0.18.jar:1.0.18]

Thu Mar 22 14:47:42 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.
2018-03-22 14:47:42.080 ERROR 5280 --- [reate-875394515] com.alibaba.druid.pool.DruidDataSource   : create connection error, url: jdbc:mysql://localhost:3306/user?useUnicode=true&characterEncoding=UTF-8, errorCode 1045, state 28000

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
   at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:963) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3966) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3902) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:875) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1712) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1228) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_161]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_161]
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_161]
   at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_161]
   at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1408) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1464) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:1969) ~[druid-1.0.18.jar:1.0.18]

2018-03-22 14:47:42.083 ERROR 5280 --- [reate-875394515] com.alibaba.druid.pool.DruidDataSource   : create connection error, url: jdbc:mysql://localhost:3306/user?useUnicode=true&characterEncoding=UTF-8, errorCode 1045, state 28000

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
   at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:963) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3966) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3902) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:875) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1712) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1228) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_161]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_161]
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_161]
   at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_161]
   at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1408) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1464) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:1969) ~[druid-1.0.18.jar:1.0.18]

2018-03-22 14:47:42.086 ERROR 5280 --- [reate-875394515] com.alibaba.druid.pool.DruidDataSource   : create connection error, url: jdbc:mysql://localhost:3306/user?useUnicode=true&characterEncoding=UTF-8, errorCode 1045, state 28000

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
   at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:963) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3966) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3902) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:875) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1712) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1228) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_161]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_161]
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_161]
   at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_161]
   at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1408) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1464) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:1969) ~[druid-1.0.18.jar:1.0.18]

Thu Mar 22 14:47:42 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.
Thu Mar 22 14:47:42 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.
Thu Mar 22 14:47:42 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.
2018-03-22 14:47:42.091 ERROR 5280 --- [reate-875394515] com.alibaba.druid.pool.DruidDataSource   : create connection error, url: jdbc:mysql://localhost:3306/user?useUnicode=true&characterEncoding=UTF-8, errorCode 1045, state 28000

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
   at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:963) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3966) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3902) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:875) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1712) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1228) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_161]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_161]
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_161]
   at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_161]
   at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1408) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1464) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:1969) ~[druid-1.0.18.jar:1.0.18]

2018-03-22 14:47:42.094 ERROR 5280 --- [reate-875394515] com.alibaba.druid.pool.DruidDataSource   : create connection error, url: jdbc:mysql://localhost:3306/user?useUnicode=true&characterEncoding=UTF-8, errorCode 1045, state 28000

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
   at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:963) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3966) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3902) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:875) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1712) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1228) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_161]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_161]
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_161]
   at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_161]
   at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1408) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1464) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:1969) ~[druid-1.0.18.jar:1.0.18]

Thu Mar 22 14:47:42 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.
Thu Mar 22 14:47:42 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.
2018-03-22 14:47:42.099 ERROR 5280 --- [reate-875394515] com.alibaba.druid.pool.DruidDataSource   : create connection error, url: jdbc:mysql://localhost:3306/user?useUnicode=true&characterEncoding=UTF-8, errorCode 1045, state 28000

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
   at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:963) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3966) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3902) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:875) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1712) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1228) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_161]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_161]
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_161]
   at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_161]
   at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1408) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1464) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:1969) ~[druid-1.0.18.jar:1.0.18]

2018-03-22 14:47:42.103 ERROR 5280 --- [reate-875394515] com.alibaba.druid.pool.DruidDataSource   : create connection error, url: jdbc:mysql://localhost:3306/user?useUnicode=true&characterEncoding=UTF-8, errorCode 1045, state 28000

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
   at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:963) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3966) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3902) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:875) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1712) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1228) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at sun.reflect.GeneratedConstructorAccessor35.newInstance(Unknown Source) ~[na:na]
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_161]
   at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_161]
   at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1408) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1464) ~[druid-1.0.18.jar:1.0.18]
   at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:1969) ~[druid-1.0.18.jar:1.0.18]

Thu Mar 22 14:47:42 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.
Thu Mar 22 14:47:42 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.
2018-03-22 14:47:42.107 ERROR 5280 --- [reate-875394515] com.alibaba.druid.pool.DruidDataSource   : create connection error, url: jdbc:mysql://localhost:3306/user?useUnicode=true&characterEncoding=UTF-8, errorCode 1045, state 28000

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
   at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:963) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3966) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3902) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:875) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1712) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1228) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) ~[mysql-connector-java-5.1.39.jar:5.1.39]
   at sun.reflect.GeneratedConstructorAccessor35.newInstance(Unknown Source) ~[na:na]
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_161]
   at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_161]
   at com.mysql.jdbc.Util.ha

您可能感兴趣的文章:

如对本文有疑问，点击进行留言回复！！

MySQL如何优化查询速度

前面章节我们介绍了如何选择优化的数据类型、如何高效的使用索引，这些对于高性能的mysql来说是必不可少的。但这些还完全不够，还需要合理的设计查询。如果查询写... [阅读全文]
MySQL优化SQL语句的技巧

在面对不够优化、或者性能极差的sql语句时，我们通常的想法是将重构这个sql语句，让其查询的结果集和原来保持一样，并且希望sql性能得以提升。而在重构sql时，... [阅读全文]
简述MySql四种事务隔离级别

隔离级别：隔离性其实比想象的要复杂。在sql标准中定义了四种隔离级别, 每一个事务中所做的修改,哪些在事务内和事务间是可见的,哪些是不可见的。较低级别的隔离通... [阅读全文]
Oracle和MySQL的数据导入为何差别这么大

经常会有一些朋友咨询我一些数据库的问题，我注意到一个很有意思的现象，凡是数据导入的问题，基本上都是oracle类的，mysql类的问题脑子里想了下竟然一次都没有... [阅读全文]
MySQL数据库升级的一些"陷阱"

对于商业数据库而言，数据库升级是一个优先级很高的事情，有版本升级路线图，有相应的补丁，而且对于方案还有一系列的演练，显然是一场硬仗。而在mysql方向上，升级这... [阅读全文]
MySQL百万级数据量分页查询方法及其优化建议

数据库sql优化是老生常谈的问题，在面对百万级数据量的分页查询，又有什么好的优化建议呢？下面将列举了一些常用的方法，供大家参考学习！方法1: 直接使用数据库提供... [阅读全文]
华为云 GaussDB 数据库，会是新的国产之光吗？

7月20日，华为云TechWave技术峰会上，华为云数据库业务总裁苏光牛正式发布两大数据库新品，包括关系型数据库... [阅读全文]
centos8使用Apache httpd2.4.37安装web服务器的步骤详解

第一步：yum install httpd -y　　#安装httpd服务第二步：systemctl start httpd　　#启动httpd服务第三步：sys... [阅读全文]
Centos7 安装 Mysql8教程

mysql8新特性：mysql从5.x版本直接跳跃到8.x，我个人是这么看的：mysql 5.5 -> mysql 5mysql 5.6 -> my... [阅读全文]
MySQL忘记root密码错误号码1045的解决办法

停止mysql服务windows可以右键我的电脑--管理--服务和应用程序--服务--找到对应的服务停止掉免密登录切换到mysql安装路径下：d:\mysql-... [阅读全文]

网友评论


验证码：