MyEclipse中MySQL的jdbc连接错误

在new新的数据库时候用testDriver检测驱动是否连通的时候提示 Error while performing database login with the MySQL driver:Access denied for user "admin@localhost"(using password : YES)
这是为什么啊 ?本人小白 求解答

3个回答

账号密码错误 检查账号对不对

dragonyangang
ElijahYang 谢谢了~已经弄好了
5 年多之前 回复

admin@localhost的密码没有指定或者是错误的。

HI 题主你好
根据errorlog,
请检查下以下几点:
1.admin@localhost 账户的密码
2.admin@localhost是否存在(可能有admin@%)

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org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:315) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source)

bn tomcat MyEclipse MySQL发布项目出现错误 求大神帮忙

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:946) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2870) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:812) at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:3269) at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1182) at com.mysql.jdbc.Connection.createNewIO(Connection.java:2670)

myeclipse连接sqlserver2014错误

java.sql.SQLException: No suitable driver found for jdbc:microsoft://127.0.0.1:1433;DatabaseName=spd1 相关jar包我下载了呀![图片说明](https://img-ask.csdn.net/upload/201706/12/1497277898_669428.png)

用myeclipse连接mysql一直出错!求助啊!!

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Myeclipse连接tomcat提示错误

org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Could not create connection to database server. Attempted reconnect 3 times. Giving up.) at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:1549) at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1388) at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:1044) at com.util.JdbcUtil.getConn(JdbcUtil.java:99) at com.util.CommUtil.getAllPrivilegesInfo(CommUtil.java:75) at com.util.CommUtil.<clinit>(CommUtil.java:52) at com.util.JdbcUtil.<clinit>(JdbcUtil.java:44) at com.dao.PrivilegeDao.QueryPrivilegeInfo(PrivilegeDao.java:50) at com.filter.AdminLoginFilter.init(AdminLoginFilter.java:100) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:298) at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:119) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4076) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4730) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:583) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1079) at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1002) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:506) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1317) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:324) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1065) at org.apache.catalina.core.StandardHost.start(StandardHost.java:822) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463) at org.apache.catalina.core.StandardService.start(StandardService.java:525) at org.apache.catalina.core.StandardServer.start(StandardServer.java:754) at org.apache.catalina.startup.Catalina.start(Catalina.java:595) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414) Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at com.mysql.jdbc.Util.handleNewInstance(Util.java:406) at com.mysql.jdbc.Util.getInstance(Util.java:381) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:926) at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2364) at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:781) at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at com.mysql.jdbc.Util.handleNewInstance(Util.java:406) at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:352) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:284) at org.apache.tomcat.dbcp.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:38) at org.apache.tomcat.dbcp.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:582) at org.apache.tomcat.dbcp.dbcp.BasicDataSource.validateConnectionFactory(BasicDataSource.java:1556) at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:1545) ... 34 more Caused by: java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1055) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3558) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3490) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:919) at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:3996) at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1284) at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2292) ... 47 more java.lang.NullPointerException at com.util.CommUtil.getAllPrivilegesInfo(CommUtil.java:76) at com.util.CommUtil.<clinit>(CommUtil.java:52) at com.util.JdbcUtil.<clinit>(JdbcUtil.java:44) at com.dao.PrivilegeDao.QueryPrivilegeInfo(PrivilegeDao.java:50) at com.filter.AdminLoginFilter.init(AdminLoginFilter.java:100) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:298) at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:119) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4076) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4730) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:583) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1079) at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1002) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:506) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1317) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:324) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1065) at org.apache.catalina.core.StandardHost.start(StandardHost.java:822) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463) at org.apache.catalina.core.StandardService.start(StandardService.java:525) at org.apache.catalina.core.StandardServer.start(StandardServer.java:754) at org.apache.catalina.startup.Catalina.start(Catalina.java:595) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)

myeclipse 链接mysql 生成pojo类

myeclipse已链接数据库,可看到数据库中的表以及修改数据,但生成pojo类时出现如下错误 An internal error occurred during: "Generating Artifacts". Getting database metadata 2015-05-20 17:31:25,743 WARN Worker-34 org.hibernate.cfg.SettingsFactory - Could not obtain connection metadata java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2926) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:771) at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:3647) at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1176) at com.mysql.jdbc.Connection.createNewIO(Connection.java:2544) at com.mysql.jdbc.Connection.<init>(Connection.java:1474) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:266) at org.hibernate.console.FakeDelegatingDriver.connect(FakeDelegatingDriver.java:40) at java.sql.DriverManager.getConnection(DriverManager.java:582) at java.sql.DriverManager.getConnection(DriverManager.java:154) at org.hibernate.connection.DriverManagerConnectionProvider.getConnection(DriverManagerConnectionProvider.java:110) at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:84) at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2005) at com.genuitec.eclipse.hibernate.wizards.MEJDBCMetaDataConfiguration.readFromJDBC(MEJDBCMetaDataConfiguration.java:72) at com.genuitec.eclipse.hibernate.wizards.GenerateArtifactsJob$7.execute(GenerateArtifactsJob.java:891) at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:64) at org.hibernate.console.ConsoleConfiguration.execute(ConsoleConfiguration.java:95) at com.genuitec.eclipse.hibernate.wizards.GenerateArtifactsJob.buildConfiguration(GenerateArtifactsJob.java:872) at com.genuitec.eclipse.hibernate.wizards.GenerateArtifactsJob.run(GenerateArtifactsJob.java:412) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54) 新人求助这是什么问题

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