刚才准备用MYECLIPSE在VO下生成映射文件时，错误提示： 在Genarating Artifacts期间发生了内部错误 An internal error occurred during: "Generating Artifacts" !ENTRY org.eclipse.core.jobs 4 2 2008-01-31 03:33:49.739!MESSAGE An internal error occurred during: "Generating Artifacts".!STACK 0org.hibernate.exception.GenericJDBCException: Getting database metadata at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:103) at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:91) at org.hibernate.cfg.reveng.dialect.AbstractMetaDataDialect.getMetaData(AbstractMetaDataDialect.java:57) at org.hibernate.cfg.reveng.dialect.JDBCMetaDataDialect.getTables(JDBCMetaDataDialect.java:24) at org.hibernate.cfg.reveng.JDBCReader.processTables(JDBCReader.java:428) at org.hibernate.cfg.reveng.JDBCReader.readDatabaseSchema(JDBCReader.java:67) at com.genuitec.eclipse.hibernate.wizards.MEJDBCMetaDataConfiguration$1.readDatabaseSchema(MEJDBCMetaDataConfiguration.java:104) at org.hibernate.cfg.JDBCBinder.readFromDatabase(JDBCBinder.java:89) at com.genuitec.eclipse.hibernate.wizards.MEJDBCMetaDataConfiguration.readFromJDBC(MEJDBCMetaDataConfiguration.java:137) at com.genuitec.eclipse.hibernate.wizards.GenerateArtifactsJob$7.execute(GenerateArtifactsJob.java:856) at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:56) at org.hibernate.console.ConsoleConfiguration.execute(ConsoleConfiguration.java:89) at com.genuitec.eclipse.hibernate.wizards.GenerateArtifactsJob.buildConfiguration(GenerateArtifactsJob.java:837) at com.genuitec.eclipse.hibernate.wizards.GenerateArtifactsJob.run(GenerateArtifactsJob.java:401) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)Caused by: java.sql.SQLException: Access denied for user ''@'localhost' (using password: YES) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:946) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2985) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:885) at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:3421) at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1247) at com.mysql.jdbc.Connection.createNewIO(Connection.java:2775) at com.mysql.jdbc.Connection.<init>(Connection.java:1555) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:285) at org.hibernate.console.FakeDelegatingDriver.connect(FakeDelegatingDriver.java:40) at java.sql.DriverManager.getConnection(Unknown Source) at java.sql.DriverManager.getConnection(Unknown Source) at org.hibernate.connection.DriverManagerConnectionProvider.getConnection(DriverManagerConnectionProvider.java:110) at org.hibernate.cfg.reveng.dialect.AbstractMetaDataDialect.getConnection(AbstractMetaDataDialect.java:115) at org.hibernate.cfg.reveng.dialect.AbstractMetaDataDialect.getMetaData(AbstractMetaDataDialect.java:54) ... 12 more 解决方案如下--》 更新数据库connector J(我是MYSQL，ORACLE的要更新到14.JAR，12.JAR不行)即可。

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