SpringBoot: java.sql.SQLException: Access denied for user 'root'@'10.10.10.95' (using password: YES)

2019-10-03 09:59:24.062  INFO 500 --- [nio-8089-exec-1] o.s.web.servlet.DispatcherServlet        : Initializing Servlet 'dispatcherServlet'
2019-10-03 09:59:24.118  INFO 500 --- [nio-8089-exec-1] o.s.web.servlet.DispatcherServlet        : Completed initialization in 55 ms
2019-10-03 10:01:08.160  INFO 500 --- [nio-8089-exec-6] com.alibaba.druid.pool.DruidDataSource   : {dataSource-1} inited
2019-10-03 10:01:08.724 ERROR 500 --- [eate-1760902577] com.alibaba.druid.pool.DruidDataSource   : create connection SQLException, url: jdbc:mysql://172.16.1.88:3306/zhuhui_tj?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull&allowMultiQueries=true, errorCode 1045, state 28000

java.sql.SQLException: Access denied for user 'root'@'10.10.10.95' (using password: YES)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:964) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3970) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3906) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:873) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1710) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1226) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_221]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_221]
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_221]
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_221]
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1513) ~[druid-1.1.9.jar:1.1.9]
    at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1578) ~[druid-1.1.9.jar:1.1.9]
    at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2466) ~[druid-1.1.9.jar:1.1.9]

2019-10-03 10:01:08.823 ERROR 500 --- [eate-1760902577] com.alibaba.druid.pool.DruidDataSource   : create connection SQLException, url: jdbc:mysql://172.16.1.88:3306/zhuhui_tj?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull&allowMultiQueries=true, errorCode 1045, state 28000

java.sql.SQLException: Access denied for user 'root'@'10.10.10.95' (using password: YES)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:964) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3970) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3906) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:873) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1710) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1226) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_221]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_221]
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_221]
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_221]
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) ~[mysql-connector-java-5.1.40.jar:5.1.40]
    at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1513) ~[druid-1.1.9.jar:1.1.9]
    at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1578) ~[druid-1.1.9.jar:1.1.9]
    at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2466) ~[druid-1.1.9.jar:1.1.9]

这是最近搭了一个springBoot+mybaits的服务。但是当测试人员用提供的服务去连接测试二数据库的时候出现了这个问题。我本机连测试一库，和本地数据库都没有问题。

1、最开始怀疑是数据库权限问题，但是比对并重新赋予权限发现，根本不是。

2、怀疑是springboot自带的数据库连接池HikariCP,因为那会儿一直报hikaricp的错误，后来换的durid这会儿发现并不是。

3、跟了下连接源码，发现原密码是0123456789，但是运行时却成了

这里发现这个原因主要是因为yml文件将全数字类型中的0转换成8进制。而且只有全是数字的时候才会将开头的0转换 字符串加了别的符号文字则不会。这个用''来括上密码就可以了。