spring连接mysql8提示错误

最新推荐文章于 2025-06-18 09:27:17 发布

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最新推荐文章于 2025-06-18 09:27:17 发布

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文章标签： spring java mysql

本文链接：https://blog.youkuaiyun.com/jiee8968/article/details/120196973

这篇博客记录了在Spring Boot应用中遇到的数据库连接问题。错误信息显示，尝试使用'root'用户登录本地MySQL时遭到拒绝，尽管指定了正确的驱动和URL。这可能是由于权限设置不当或凭证错误导致的。此外，还提醒已弃用'com.mysql.jdbc.Driver'，建议使用'com.mysql.cj.jdbc.Driver'。在深入排查问题的过程中，检查数据库配置、用户权限和连接参数至关重要。

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<?xml version="1.0" encoding="UTF-8"?>

<context:component-scan base-package="com.service"></context:component-scan>
<context:component-scan base-package="com.dao"></context:component-scan>


<bean id="myDS" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
	  <property name="driverClassName" value="com.mysql.cj.jdbc.Driver"></property>
	  <property name="url" value="jdbc:mysql://127.0.0.1:3306/tb1?useUnicode=true&amp;characterEncoding=UTF-8&amp;serverTimezone=UTC&amp;useSSL=false&amp;connectTimeout=1200000&amp;socketTimeout=120000

<!-- 配置SqlSessionFactory对象 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="dataSource" ref="myDS" />
    <property name="mapperLocations" value="classpath:com/mapper/*.xml" />
</bean>
<!-- 配置扫描Dao接口包，动态实现Dao接口，注入到spring容器中 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    <property name="basePackage" value="com.dao"/>
</bean>
<bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
    <constructor-arg ref="sqlSessionFactory" />
</bean>
<!--  -->

Loading class com.mysql.jdbc.Driver'. This is deprecated. The new driver class iscom.mysql.cj.jdbc.Driver’. The driver is automatically registered via the SPI and manual loading of the driver class is generally unnecessary.
九月 09, 2021 10:43:34 上午 org.apache.catalina.core.StandardWrapperValve invoke
严重: 在路径为/WebCS的上下文中，Servlet[springDispatcherServlet]的Servlet.service（）引发了具有根本原因的异常Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException:

Error querying database. Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: Cannot create PoolableConnectionFactory (Access denied for user ‘root’@‘localhost’ (using password: YES))

The error may exist in file [D:\apache-tomcat-8.5.65\webapps\WebCS\WEB-INF\classes\com\mapper\UserMapper.xml]

The error may involve com.dao.UserDao.check

The error occurred while executing a query

Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: Cannot create PoolableConnectionFactory (Access denied for user ‘root’@‘localhost’ (using password: YES))

java.sql.SQLException: Access denied for user ‘root’@‘localhost’ (using password: YES)
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:129)
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)
at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)
at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
at com.mysql.cj.jdbc.ConnectionImpl.(ConnectionImpl.java:456)
at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:197)
at org.apache.commons.dbcp2.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:53)
at org.apache.commons.dbcp2.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:291)
at org.apache.commons.dbcp2.BasicDataSource.validateConnectionFactory(BasicDataSource.java:2395)
at org.apache.commons.dbcp2.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:2381)
at org.apache.commons.dbcp2.BasicDataSource.createDataSource(BasicDataSource.java:2110)
at org.apache.commons.dbcp2.BasicDataSource.getConnection(BasicDataSource.java:1563)
at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111)
at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:77)
at org.mybatis.spring.transaction.SpringManagedTransaction.openConnection(SpringManagedTransaction.java:84)
at org.mybatis.spring.transaction.SpringManagedTransaction.getConnection(SpringManagedTransaction.java:70)
at org.apache.ibatis.executor.BaseExecutor.getConnection(BaseExecutor.java:336)
at org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:84)
at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:62)
at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:324)
at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156)
at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109)
at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:83)
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148)
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141)
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:77)
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.mybatis.spring.SqlSessionTemplate $S q l S e s s i o n I n t e r c e p t o r . i n v o k e (S q l S e s s i o n T e m p l a t e . j a v a : 434) a t c o m . s u n . p r o x y .$ Proxy12.selectOne(Unknown Source)
at org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:167)
at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:82)
at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:53)
at com.sun.proxy.ConnectionHandler.process(AbstractProtocol.java:831)
at org.apache.tomcat.util.net.NioEndpoint $S o c k e t P r o c e s s o r . d o R u n (N i o E n d p o i n t . j a v a : 1629) a t o r g . a p a c h e . t o m c a t . u t i l . n e t . S o c k e t P r o c e s s o r B a s e . r u n (S o c k e t P r o c e s s o r B a s e . j a v a : 49) a t j a v a . u t i l . c o n c u r r e n t . T h r e a d P o o l E x e c u t o r . r u n W o r k e r (T h r e a d P o o l E x e c u t o r . j a v a : 1149) a t j a v a . u t i l . c o n c u r r e n t . T h r e a d P o o l E x e c u t o r$ Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)