com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Accès refusé pour l'utilisateur: ''@'@localhost'. Base 'db_hajar'

  1. 0

    Why do I get a "MySQLSyntaxErrorException:Access denied for user:" error?

    Stack Overflow | 2 years ago | Chawqi Hajar
    com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Accès refusé pour l'utilisateur: ''@'@localhost'. Base 'db_hajar'
  2. 0

    Spring JDBC - Can't connect to database

    Stack Overflow | 1 year ago | shyam
    com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Access denied for user ''@'localhost' to database 'lookup'
  3. 0

    GitHub comment 53#59170589

    GitHub | 2 years ago | raovikas
    org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.jdbc.datasource.init.DataSourceInitializer#0': Invocation of init method failed; nested exception is org.springframework.jdbc.datasource.init.UncategorizedScriptException: Failed to execute database script; nested exception is org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown database 'petclinic'
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  5. 0

    日志输出的类名不对

    GitHub | 4 years ago | fivesmallq
    com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown database 'novasecd'
  6. 0

    Mysql Error???

    GitHub | 2 years ago | AlexZZ95MC
    com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown database 'pex'

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Root Cause Analysis

  1. com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException

    Accès refusé pour l'utilisateur: ''@'@localhost'. Base 'db_hajar'

    at sun.reflect.NativeConstructorAccessorImpl.newInstance0()
  2. Java RT
    Constructor.newInstance
    1. sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    2. sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    3. sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    4. java.lang.reflect.Constructor.newInstance(Unknown Source)
    4 frames
  3. MySQL jdbc
    JDBC4Connection.<init>
    1. com.mysql.jdbc.Util.handleNewInstance(Util.java:377)
    2. com.mysql.jdbc.Util.getInstance(Util.java:360)
    3. com.mysql.jdbc.SQLError.createSQLException(SQLError.java:978)
    4. com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3887)
    5. com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3823)
    6. com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:870)
    7. com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1659)
    8. com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1206)
    9. com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2234)
    10. com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2265)
    11. com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2064)
    12. com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:790)
    13. com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:44)
    13 frames
  4. Java RT
    Constructor.newInstance
    1. sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    2. sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    3. sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    4. java.lang.reflect.Constructor.newInstance(Unknown Source)
    4 frames
  5. MySQL jdbc
    NonRegisteringDriver.connect
    1. com.mysql.jdbc.Util.handleNewInstance(Util.java:377)
    2. com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:395)
    3. com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:325)
    3 frames
  6. org.apache.tomcat
    DataSourceProxy.getConnection
    1. org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:307)
    2. org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:200)
    3. org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:699)
    4. org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:633)
    5. org.apache.tomcat.jdbc.pool.ConnectionPool.init(ConnectionPool.java:484)
    6. org.apache.tomcat.jdbc.pool.ConnectionPool.<init>(ConnectionPool.java:142)
    7. org.apache.tomcat.jdbc.pool.DataSourceProxy.pCreatePool(DataSourceProxy.java:115)
    8. org.apache.tomcat.jdbc.pool.DataSourceProxy.createPool(DataSourceProxy.java:102)
    9. org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:126)
    9 frames
  7. org.hibernate.engine
    DatasourceConnectionProviderImpl.getConnection
    1. org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:139)
    1 frame
  8. Hibernate
    Configuration.buildSessionFactory
    1. org.hibernate.tool.hbm2ddl.SuppliedConnectionProviderConnectionHelper.prepare(SuppliedConnectionProviderConnectionHelper.java:51)
    2. org.hibernate.tool.hbm2ddl.SchemaUpdate.execute(SchemaUpdate.java:219)
    3. org.hibernate.tool.hbm2ddl.SchemaUpdate.execute(SchemaUpdate.java:203)
    4. org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:522)
    5. org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1859)
    5 frames
  9. org.hibernate.jpa
    EntityManagerFactoryBuilderImpl$4.perform
    1. org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:852)
    2. org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:845)
    2 frames
  10. org.hibernate.boot
    ClassLoaderServiceImpl.withTccl
    1. org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.withTccl(ClassLoaderServiceImpl.java:398)
    1 frame
  11. org.hibernate.jpa
    EntityManagerFactoryBuilderImpl.build
    1. org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:844)
    1 frame
  12. Spring ORM
    AbstractEntityManagerFactoryBean.afterPropertiesSet
    1. org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:60)
    2. org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:343)
    3. org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:318)
    3 frames
  13. Spring Beans
    AbstractBeanFactory.getBean
    1. org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1633)
    2. org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1570)
    3. org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
    4. org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
    5. org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
    6. org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
    7. org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
    8. org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    8 frames
  14. Spring Context
    AbstractApplicationContext.refresh
    1. org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:956)
    2. org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:747)
    3. org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
    3 frames
  15. Spring Boot
    SpringApplication.run
    1. org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118)
    2. org.springframework.boot.SpringApplication.refresh(SpringApplication.java:686)
    3. org.springframework.boot.SpringApplication.run(SpringApplication.java:320)
    4. org.springframework.boot.SpringApplication.run(SpringApplication.java:957)
    5. org.springframework.boot.SpringApplication.run(SpringApplication.java:946)
    5 frames
  16. demo
    DemoJpaApplication.main
    1. demo.DemoJpaApplication.main(DemoJpaApplication.java:10)
    1 frame