如何解决使用 Spring 和 JDBC，为什么我会因用户错误而拒绝访问？
我目前正在使用 Spring 并且我正在尝试连接到 JDBC，但我多次遇到此错误：
java.sql.sqlException: Access denied for user 'Slash'@'localhost' (using password: YES)
我已经找了几个小时了，我看到了一些与这个问题相关的“解决方案”，但它通常涉及 Java，而不是 Spring，所以我真的不知道该怎么做。
我的 application.properties 文件是：
server.port=8081
#spring.thymeleaf.cache=false
spring.datasource.url=jdbc:MysqL://127.0.0.1:3308/
spring.datesource.username=root
spring.datasource.password=toor
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MysqL5Dialect
spring.datasource.driver-class-name=com.MysqL.cj.jdbc.Driver
spring.jpa.hibernate.ddl-auto=create
spring.jpa.show-sql=false
完整的堆栈如下所示：
java.sql.sqlException: Access denied for user 'Slash'@'localhost' (using password: YES)
at com.MysqL.cj.jdbc.exceptions.sqlError.createsqlException(sqlError.java:129) ~[mysql-connector-java-8.0.25.jar:8.0.25]
at com.MysqL.cj.jdbc.exceptions.sqlExceptionsMapping.translateException(sqlExceptionsMapping.java:122) ~[mysql-connector-java-8.0.25.jar:8.0.25]
at com.MysqL.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:833) ~[mysql-connector-java-8.0.25.jar:8.0.25]
at com.MysqL.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:453) ~[mysql-connector-java-8.0.25.jar:8.0.25]
at com.MysqL.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246) ~[mysql-connector-java-8.0.25.jar:8.0.25]
at com.MysqL.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198) ~[mysql-connector-java-8.0.25.jar:8.0.25]
at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:121) ~[HikariCP-4.0.3.jar:na]
at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:364) ~[HikariCP-4.0.3.jar:na]
at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:206) ~[HikariCP-4.0.3.jar:na]
at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:476) ~[HikariCP-4.0.3.jar:na]
at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:561) ~[HikariCP-4.0.3.jar:na]
at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) ~[HikariCP-4.0.3.jar:na]
at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) ~[HikariCP-4.0.3.jar:na]
at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentinitiator$ConnectionProviderJdbcConnectionAccess.obtainConnection(JdbcEnvironmentinitiator.java:180) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentinitiator.initiateService(JdbcEnvironmentinitiator.java:68) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentinitiator.initiateService(JdbcEnvironmentinitiator.java:35) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:101) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:263) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:237) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory.injectServices(DefaultIdentifierGeneratorFactory.java:152) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.injectDependencies(AbstractServiceRegistryImpl.java:286) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:243) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.<init>(InFlightMetadataCollectorImpl.java:176) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:127) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.Metadata(EntityManagerFactoryBuilderImpl.java:1224) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1255) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:58) ~[spring-orm-5.3.7.jar:5.3.7]
at org.springframework.orm.jpa.LocalContainerEntityManagerfactorybean.createNativeEntityManagerFactory(LocalContainerEntityManagerfactorybean.java:365) ~[spring-orm-5.3.7.jar:5.3.7]
at org.springframework.orm.jpa.AbstractEntityManagerfactorybean.buildNativeEntityManagerFactory(AbstractEntityManagerfactorybean.java:409) ~[spring-orm-5.3.7.jar:5.3.7]
at org.springframework.orm.jpa.AbstractEntityManagerfactorybean.afterPropertiesSet(AbstractEntityManagerfactorybean.java:396) ~[spring-orm-5.3.7.jar:5.3.7]
at org.springframework.orm.jpa.LocalContainerEntityManagerfactorybean.afterPropertiesSet(LocalContainerEntityManagerfactorybean.java:341) ~[spring-orm-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.invokeInitMethods(AbstractAutowireCapablebeanfactory.java:1845) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.initializeBean(AbstractAutowireCapablebeanfactory.java:1782) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.doCreateBean(AbstractAutowireCapablebeanfactory.java:602) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.createBean(AbstractAutowireCapablebeanfactory.java:524) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.Abstractbeanfactory.lambda$doGetBean$0(Abstractbeanfactory.java:335) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.Abstractbeanfactory.doGetBean(Abstractbeanfactory.java:333) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.Abstractbeanfactory.getBean(Abstractbeanfactory.java:208) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1154) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.context.support.AbstractApplicationContext.finishbeanfactoryInitialization(AbstractApplicationContext.java:908) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:438) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:337) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1336) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1325) ~[spring-boot-2.5.0.jar:2.5.0]
at com.example.demo.DemoApplication.main(DemoApplication.java:14) ~[classes/:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:567) ~[na:na]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.5.0.jar:2.5.0]
2021-05-27 11:58:02.107 WARN 6192 --- [ restartedMain] o.h.e.j.e.i.JdbcEnvironmentinitiator : HHH000342: Could not obtain connection to query Metadata
java.sql.sqlException: Access denied for user 'Slash'@'localhost' (using password: YES)
at com.MysqL.cj.jdbc.exceptions.sqlError.createsqlException(sqlError.java:129) ~[mysql-connector-java-8.0.25.jar:8.0.25]
at com.MysqL.cj.jdbc.exceptions.sqlExceptionsMapping.translateException(sqlExceptionsMapping.java:122) ~[mysql-connector-java-8.0.25.jar:8.0.25]
at com.MysqL.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:833) ~[mysql-connector-java-8.0.25.jar:8.0.25]
at com.MysqL.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:453) ~[mysql-connector-java-8.0.25.jar:8.0.25]
at com.MysqL.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246) ~[mysql-connector-java-8.0.25.jar:8.0.25]
at com.MysqL.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198) ~[mysql-connector-java-8.0.25.jar:8.0.25]
at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:121) ~[HikariCP-4.0.3.jar:na]
at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:364) ~[HikariCP-4.0.3.jar:na]
at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:206) ~[HikariCP-4.0.3.jar:na]
at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:476) ~[HikariCP-4.0.3.jar:na]
at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:561) ~[HikariCP-4.0.3.jar:na]
at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) ~[HikariCP-4.0.3.jar:na]
at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) ~[HikariCP-4.0.3.jar:na]
at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentinitiator$ConnectionProviderJdbcConnectionAccess.obtainConnection(JdbcEnvironmentinitiator.java:180) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentinitiator.initiateService(JdbcEnvironmentinitiator.java:68) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentinitiator.initiateService(JdbcEnvironmentinitiator.java:35) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:101) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:263) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:237) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory.injectServices(DefaultIdentifierGeneratorFactory.java:152) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.injectDependencies(AbstractServiceRegistryImpl.java:286) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:243) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.<init>(InFlightMetadataCollectorImpl.java:176) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:127) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.Metadata(EntityManagerFactoryBuilderImpl.java:1224) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1255) ~[hibernate-core-5.4.31.Final.jar:5.4.31.Final]
at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:58) ~[spring-orm-5.3.7.jar:5.3.7]
at org.springframework.orm.jpa.LocalContainerEntityManagerfactorybean.createNativeEntityManagerFactory(LocalContainerEntityManagerfactorybean.java:365) ~[spring-orm-5.3.7.jar:5.3.7]
at org.springframework.orm.jpa.AbstractEntityManagerfactorybean.buildNativeEntityManagerFactory(AbstractEntityManagerfactorybean.java:409) ~[spring-orm-5.3.7.jar:5.3.7]
at org.springframework.orm.jpa.AbstractEntityManagerfactorybean.afterPropertiesSet(AbstractEntityManagerfactorybean.java:396) ~[spring-orm-5.3.7.jar:5.3.7]
at org.springframework.orm.jpa.LocalContainerEntityManagerfactorybean.afterPropertiesSet(LocalContainerEntityManagerfactorybean.java:341) ~[spring-orm-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.invokeInitMethods(AbstractAutowireCapablebeanfactory.java:1845) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.initializeBean(AbstractAutowireCapablebeanfactory.java:1782) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.doCreateBean(AbstractAutowireCapablebeanfactory.java:602) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.createBean(AbstractAutowireCapablebeanfactory.java:524) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.Abstractbeanfactory.lambda$doGetBean$0(Abstractbeanfactory.java:335) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.Abstractbeanfactory.doGetBean(Abstractbeanfactory.java:333) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.Abstractbeanfactory.getBean(Abstractbeanfactory.java:208) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1154) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.context.support.AbstractApplicationContext.finishbeanfactoryInitialization(AbstractApplicationContext.java:908) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:438) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:337) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1336) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1325) ~[spring-boot-2.5.0.jar:2.5.0]
at com.example.demo.DemoApplication.main(DemoApplication.java:14) ~[classes/:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:567) ~[na:na]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.5.0.jar:2.5.0]
2021-05-27 11:58:02.117 INFO 6192 --- [ restartedMain] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.MysqL5Dialect
2021-05-27 11:58:02.460 INFO 6192 --- [ restartedMain] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2021-05-27 11:58:03.477 ERROR 6192 --- [ restartedMain] com.zaxxer.hikari.pool.HikariPool : HikariPool-1 - Exception during pool initialization.
java.sql.sqlException: Access denied for user 'Slash'@'localhost' (using password: YES)
etc... (can't copy the whole thing)
有人有想法吗？
解决方法
您的应用程序正在尝试使用用户“Slash”登录，如日志中所示。这与 application.properties 文件中指定的用户名/密码不同。在尝试登录数据库时检查您的代码，是使用 Spring 默认值还是您的代码将其设置为此用户“斜线”某处。
您是否也可以使用这些用户登录此本地数据库？
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