项目场景：

前些天在IDEA中导入项目后，更改好配置，运行出错

问题描述

以下是错误提示：

ERROR 18660 --- [3)-192.168.48.1] com.zaxxer.hikari.pool.HikariPool        : HikariPool-1 - Exception during pool initialization.java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:129) ~[mysql-connector-java-8.0.16.jar:8.0.16]at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97) ~[mysql-connector-java-8.0.16.jar:8.0.16]at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122) ~[mysql-connector-java-8.0.16.jar:8.0.16]at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:835) ~[mysql-connector-java-8.0.16.jar:8.0.16]at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:455) ~[mysql-connector-java-8.0.16.jar:8.0.16]at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:240) ~[mysql-connector-java-8.0.16.jar:8.0.16]at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:199) ~[mysql-connector-java-8.0.16.jar:8.0.16]at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:136) ~[HikariCP-3.2.0.jar:na]at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:369) ~[HikariCP-3.2.0.jar:na]at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:198) ~[HikariCP-3.2.0.jar:na]at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:467) [HikariCP-3.2.0.jar:na]at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:541) [HikariCP-3.2.0.jar:na]at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) [HikariCP-3.2.0.jar:na]at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) [HikariCP-3.2.0.jar:na]at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:157) [spring-jdbc-5.1.8.RELEASE.jar:5.1.8.RELEASE]at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:115) [spring-jdbc-5.1.8.RELEASE.jar:5.1.8.RELEASE]at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:78) [spring-jdbc-5.1.8.RELEASE.jar:5.1.8.RELEASE]at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:323) [spring-jdbc-5.1.8.RELEASE.jar:5.1.8.RELEASE]at org.springframework.boot.actuate.jdbc.DataSourceHealthIndicator.getProduct(DataSourceHealthIndicator.java:119) [spring-boot-actuator-2.1.6.RELEASE.jar:2.1.6.RELEASE]at org.springframework.boot.actuate.jdbc.DataSourceHealthIndicator.doDataSourceHealthCheck(DataSourceHealthIndicator.java:107) [spring-boot-actuator-2.1.6.RELEASE.jar:2.1.6.RELEASE]at org.springframework.boot.actuate.jdbc.DataSourceHealthIndicator.doHealthCheck(DataSourceHealthIndicator.java:102) [spring-boot-actuator-2.1.6.RELEASE.jar:2.1.6.RELEASE]at org.springframework.boot.actuate.health.AbstractHealthIndicator.health(AbstractHealthIndicator.java:82) [spring-boot-actuator-2.1.6.RELEASE.jar:2.1.6.RELEASE]at org.springframework.boot.actuate.health.CompositeHealthIndicator.health(CompositeHealthIndicator.java:95) [spring-boot-actuator-2.1.6.RELEASE.jar:2.1.6.RELEASE]at org.springframework.boot.actuate.health.HealthEndpoint.health(HealthEndpoint.java:50) [spring-boot-actuator-2.1.6.RELEASE.jar:2.1.6.RELEASE]at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_322]at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_322]at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_322]at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_322]at org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:282) [spring-core-5.1.8.RELEASE.jar:5.1.8.RELEASE]at org.springframework.boot.actuate.endpoint.invoke.reflect.ReflectiveOperationInvoker.invoke(ReflectiveOperationInvoker.java:76) [spring-boot-actuator-2.1.6.RELEASE.jar:2.1.6.RELEASE]at org.springframework.boot.actuate.endpoint.annotation.AbstractDiscoveredOperation.invoke(AbstractDiscoveredOperation.java:60) [spring-boot-actuator-2.1.6.RELEASE.jar:2.1.6.RELEASE]at org.springframework.boot.actuate.endpoint.jmx.EndpointMBean.invoke(EndpointMBean.java:121) [spring-boot-actuator-2.1.6.RELEASE.jar:2.1.6.RELEASE]at org.springframework.boot.actuate.endpoint.jmx.EndpointMBean.invoke(EndpointMBean.java:96) [spring-boot-actuator-2.1.6.RELEASE.jar:2.1.6.RELEASE]at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) [na:1.8.0_322]at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) [na:1.8.0_322]at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468) [na:1.8.0_322]at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76) [na:1.8.0_322]at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309) [na:1.8.0_322]at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1401) [na:1.8.0_322]at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829) [na:1.8.0_322]at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_322]at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_322]at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_322]at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_322]at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357) [na:1.8.0_322]at sun.rmi.transport.Transport$1.run(Transport.java:200) [na:1.8.0_322]at sun.rmi.transport.Transport$1.run(Transport.java:197) [na:1.8.0_322]at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_322]at sun.rmi.transport.Transport.serviceCall(Transport.java:196) [na:1.8.0_322]at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573) [na:1.8.0_322]at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:834) [na:1.8.0_322]at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:688) [na:1.8.0_322]at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_322]at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:687) [na:1.8.0_322]at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_322]at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_322]at java.lang.Thread.run(Thread.java:750) ~[na:1.8.0_322]WARN 18660 --- [3)-192.168.48.1] o.s.b.a.jdbc.DataSourceHealthIndicator   : DataSource health check failedorg.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:81) ~[spring-jdbc-5.1.8.RELEASE.jar:5.1.8.RELEASE]at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:323) ~[spring-jdbc-5.1.8.RELEASE.jar:5.1.8.RELEASE]at org.springframework.boot.actuate.jdbc.DataSourceHealthIndicator.getProduct(DataSourceHealthIndicator.java:119) ~[spring-boot-actuator-2.1.6.RELEASE.jar:2.1.6.RELEASE]at org.springframework.boot.actuate.jdbc.DataSourceHealthIndicator.doDataSourceHealthCheck(DataSourceHealthIndicator.java:107) ~[spring-boot-actuator-2.1.6.RELEASE.jar:2.1.6.RELEASE]at org.springframework.boot.actuate.jdbc.DataSourceHealthIndicator.doHealthCheck(DataSourceHealthIndicator.java:102) ~[spring-boot-actuator-2.1.6.RELEASE.jar:2.1.6.RELEASE]at org.springframework.boot.actuate.health.AbstractHealthIndicator.health(AbstractHealthIndicator.java:82) ~[spring-boot-actuator-2.1.6.RELEASE.jar:2.1.6.RELEASE]at org.springframework.boot.actuate.health.CompositeHealthIndicator.health(CompositeHealthIndicator.java:95) [spring-boot-actuator-2.1.6.RELEASE.jar:2.1.6.RELEASE]at org.springframework.boot.actuate.health.HealthEndpoint.health(HealthEndpoint.java:50) [spring-boot-actuator-2.1.6.RELEASE.jar:2.1.6.RELEASE]at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_322]at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_322]at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_322]at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_322]at org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:282) [spring-core-5.1.8.RELEASE.jar:5.1.8.RELEASE]at org.springframework.boot.actuate.endpoint.invoke.reflect.ReflectiveOperationInvoker.invoke(ReflectiveOperationInvoker.java:76) [spring-boot-actuator-2.1.6.RELEASE.jar:2.1.6.RELEASE]at org.springframework.boot.actuate.endpoint.annotation.AbstractDiscoveredOperation.invoke(AbstractDiscoveredOperation.java:60) [spring-boot-actuator-2.1.6.RELEASE.jar:2.1.6.RELEASE]at org.springframework.boot.actuate.endpoint.jmx.EndpointMBean.invoke(EndpointMBean.java:121) [spring-boot-actuator-2.1.6.RELEASE.jar:2.1.6.RELEASE]at org.springframework.boot.actuate.endpoint.jmx.EndpointMBean.invoke(EndpointMBean.java:96) [spring-boot-actuator-2.1.6.RELEASE.jar:2.1.6.RELEASE]at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) [na:1.8.0_322]at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) [na:1.8.0_322]at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468) [na:1.8.0_322]at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76) [na:1.8.0_322]at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309) [na:1.8.0_322]at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1401) [na:1.8.0_322]at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829) [na:1.8.0_322]at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_322]at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_322]at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_322]at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_322]at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357) [na:1.8.0_322]at sun.rmi.transport.Transport$1.run(Transport.java:200) [na:1.8.0_322]at sun.rmi.transport.Transport$1.run(Transport.java:197) [na:1.8.0_322]at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_322]at sun.rmi.transport.Transport.serviceCall(Transport.java:196) [na:1.8.0_322]at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573) [na:1.8.0_322]at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:834) [na:1.8.0_322]at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:688) [na:1.8.0_322]at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_322]at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:687) [na:1.8.0_322]at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_322]at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_322]at java.lang.Thread.run(Thread.java:750) ~[na:1.8.0_322]
Caused by: java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:129) ~[mysql-connector-java-8.0.16.jar:8.0.16]at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97) ~[mysql-connector-java-8.0.16.jar:8.0.16]at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122) ~[mysql-connector-java-8.0.16.jar:8.0.16]at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:835) ~[mysql-connector-java-8.0.16.jar:8.0.16]at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:455) ~[mysql-connector-java-8.0.16.jar:8.0.16]at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:240) ~[mysql-connector-java-8.0.16.jar:8.0.16]at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:199) ~[mysql-connector-java-8.0.16.jar:8.0.16]at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:136) ~[HikariCP-3.2.0.jar:na]at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:369) ~[HikariCP-3.2.0.jar:na]at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:198) ~[HikariCP-3.2.0.jar:na]at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:467) ~[HikariCP-3.2.0.jar:na]at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:541) ~[HikariCP-3.2.0.jar:na]at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) ~[HikariCP-3.2.0.jar:na]at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) ~[HikariCP-3.2.0.jar:na]at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:157) ~[spring-jdbc-5.1.8.RELEASE.jar:5.1.8.RELEASE]at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:115) ~[spring-jdbc-5.1.8.RELEASE.jar:5.1.8.RELEASE]at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:78) ~[spring-jdbc-5.1.8.RELEASE.jar:5.1.8.RELEASE]... 40 common frames omitted

原因分析：

1、MySQL配置是否正确
2、驱动包是否匹配
3、是否有多个mysql进程服务开启

我是很确定前两项我这都没问题
yml配置文件中数据库配置信息及驱动包版本

数据库用户及密码

数据库的基本配置及MySQL版本

经过检查，我这出现这个问题并不是yml配置和数据库的问题，我用navicat是可以连接上的。

那么就看看第3点了，打开任务管理器

可以看到有两种版本的mysql在运行，那么问题就出在这了。

解决方案：

这里的mysqlzt是禅道的mysql数据库服务

将不需要的mysql进程及服务结束就可以了

重新运行项目就成功了。

注：此文仅描述本人所遇问题及解决方案。有类似问题的朋友，此文提供的解决方案仅供参考。

参考博客：
①：The specified database user/password combination is rejected: [28000][1045] Access denied for user ‘
②：SpringBoot启动报错：HikariPool-1 - Exception during pool initialization.
③：MySQL登录时出现Access denied for user ‘root‘@‘localhost‘ (using password: YES)无法打开的解决方法
④：解决Mysql 的Access denied for user’root’@‘localhost’ (using password: NO)问题

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错误HikariPool-1 - Exception during..+ Access denied for user ‘root‘@‘localhost‘ (using password: YES)

项目场景：

问题描述

原因分析：

解决方案：

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