spring boot 用dbcp2连接数据库出现(Access denied for user 'root'@'localhost' (using password: YES)) 异常

spring boot 用dbcp2连接数据库出现(Access denied for user ‘root’@‘localhost’ (using password: YES))

异常 ##

今天刚刚用spring boot连接数据库，但是出现了异常，感觉很奇怪，出现如下异常

java.sql.SQLException: Cannot create PoolableConnectionFactory (Access denied for user 'root'@'localhost' (using password: YES))at org.apache.commons.dbcp2.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:2294)at org.apache.commons.dbcp2.BasicDataSource.createDataSource(BasicDataSource.java:2039)at org.apache.commons.dbcp2.BasicDataSource.getConnection(BasicDataSource.java:1533)at cn.hgf.springdemo.test.DataSourceTest.testDb(DataSourceTest.java:35)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:498)at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:252)at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94)at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)at org.junit.runners.ParentRunner.run(ParentRunner.java:363)at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191)at org.junit.runner.JUnitCore.run(JUnitCore.java:137)at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:964)at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3973)at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3909)at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:873)at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1710)at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1226)at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2191)at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2222)at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2017)at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:779)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.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.ConnectionImpl.getInstance(ConnectionImpl.java:389)at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:330)at org.apache.commons.dbcp2.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:39)at org.apache.commons.dbcp2.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:256)at org.apache.commons.dbcp2.BasicDataSource.validateConnectionFactory(BasicDataSource.java:2304)at org.apache.commons.dbcp2.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:2290)... 31 more

一开始怀疑是数据库密码错误，但是cmd命令能进入，说明不是那个问题，然后找到异常栈第一行
org.apache.commons.dbcp2.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:2294)

这个也就是异常最开始的地方，打个断点!

这里竟然密码不一样
崩溃了有没有

  datasource:username: rootpassword: 0626url: jdbc:mysql://localhost:3306/test?useUnicode=true&amp;characterEncoding=utf-8driver-class-name: com.mysql.jdbc.Drivertype: org.apache.commons.dbcp2.BasicDataSource

yml这样写没毛病，再一想，难道是0626要用引号？
修改
datasource: username: root password: "0626" url:jdbc:mysql://localhost:3306/testuseUnicode=true&characterEncoding=utf-8 driver-class-name: com.mysql.jdbc.Driver type: org.apache.commons.dbcp2.BasicDataSource

再次启动，问题解决，但是关键是为啥呢，这个yml不是默认字符串的么？
如果有大佬能解决，请留言谢谢

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spring boot 用dbcp2连接数据库出现(Access denied for user 'root'@'localhost' (using password: YES)) 异常

spring boot 用dbcp2连接数据库出现(Access denied for user ‘root’@‘localhost’ (using password: YES))

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