通过代码连接数据库是通的，不知道generate-model时产生如下错误：

Buildfile: D:\jboss-seam-2.0.1.GA\seam-gen\build.xml

init:

init-properties:
     [echo] d:/jboss-4.2.1.GA

validate-workspace:

validate-project:

init-generate:

generate-model:
     [echo] Reverse engineering database using JDBC driver lib/postgresql-8.3-603.jdbc2.jar
     [echo] project=e:/wyp/workspace/helloworld
     [echo] model=org.jboss.helloworld
[hibernate] Executing Hibernate Tool with a JDBC Configuration (for reverse engineering)
[hibernate] 1. task: hbm2java (Generates a set of .java files)
[hibernate] 2008-7-15 15:48:15 org.hibernate.cfg.Environment <clinit>
[hibernate] 信息: Hibernate 3.2.4.sp1
[hibernate] 2008-7-15 15:48:15 org.hibernate.cfg.Environment <clinit>
[hibernate] 信息: hibernate.properties not found
[hibernate] 2008-7-15 15:48:15 org.hibernate.cfg.Environment buildBytecodeProvider
[hibernate] 信息: Bytecode provider name : cglib
[hibernate] 2008-7-15 15:48:16 org.hibernate.cfg.Environment <clinit>
[hibernate] 信息: using JDK 1.4 java.sql.Timestamp handling
[hibernate] 2008-7-15 15:48:16 org.hibernate.cfg.reveng.OverrideRepository addFile
[hibernate] 信息: Override file: e:\wyp\workspace\helloworld\resources\seam-gen.reveng.xml
[hibernate] 2008-7-15 15:48:16 org.hibernate.connection.DriverManagerConnectionProvider configure
[hibernate] 信息: Using Hibernate built-in connection pool (not for production use!)
[hibernate] 2008-7-15 15:48:16 org.hibernate.connection.DriverManagerConnectionProvider configure
[hibernate] 信息: Hibernate connection pool size: 20
[hibernate] 2008-7-15 15:48:16 org.hibernate.connection.DriverManagerConnectionProvider configure
[hibernate] 信息: autocommit mode: false
[hibernate] 2008-7-15 15:48:16 org.hibernate.connection.DriverManagerConnectionProvider configure
[hibernate] 信息: using driver: org.postgresql.Driver at URL: jdbc:postgresql://localhost/seam
[hibernate] 2008-7-15 15:48:16 org.hibernate.connection.DriverManagerConnectionProvider configure
[hibernate] 信息: connection properties: {user=postgres, password=****}
[hibernate] 2008-7-15 15:48:16 org.hibernate.cfg.SettingsFactory buildSettings
[hibernate] 警告: Could not obtain connection metadata
[hibernate] org.postgresql.util.PSQLException: FATAL: database "seam " does not exist
[hibernate] at org.postgresql.core.v3.ConnectionFactoryImpl.readStartupMessages(ConnectionFactoryImpl.java:444)
[hibernate] at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:99)
[hibernate] at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:66)
[hibernate] at org.postgresql.jdbc2.AbstractJdbc2Connection.<init>(AbstractJdbc2Connection.java:124)
[hibernate] at org.postgresql.jdbc2.Jdbc2Connection.<init>(Jdbc2Connection.java:24)
[hibernate] at org.postgresql.Driver.makeConnection(Driver.java:386)
[hibernate] at org.postgresql.Driver.connect(Driver.java:260)
[hibernate] at java.sql.DriverManager.getConnection(Unknown Source)
[hibernate] at java.sql.DriverManager.getConnection(Unknown Source)
[hibernate] at org.hibernate.connection.DriverManagerConnectionProvider.getConnection(DriverManagerConnectionProvider.java:110)
[hibernate] at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:84)
[hibernate] at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2005)
[hibernate] at org.hibernate.cfg.JDBCMetaDataConfiguration.readFromJDBC(JDBCMetaDataConfiguration.java:40)
[hibernate] at org.hibernate.tool.ant.JDBCConfigurationTask.doConfiguration(JDBCConfigurationTask.java:81)
[hibernate] at org.hibernate.tool.ant.ConfigurationTask.getConfiguration(ConfigurationTask.java:55)
[hibernate] at org.hibernate.tool.ant.HibernateToolTask.getConfiguration(HibernateToolTask.java:302)
[hibernate] at org.hibernate.tool.ant.HibernateToolTask.getProperties(HibernateToolTask.java:318)
[hibernate] at org.hibernate.tool.ant.ExporterTask.configureExporter(ExporterTask.java:94)
[hibernate] at org.hibernate.tool.ant.Hbm2JavaExporterTask.configureExporter(Hbm2JavaExporterTask.java:34)
[hibernate] at org.hibernate.tool.ant.ExporterTask.execute(ExporterTask.java:39)
[hibernate] at org.hibernate.tool.ant.HibernateToolTask.execute(HibernateToolTask.java:186)
[hibernate] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
[hibernate] at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
[hibernate] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
[hibernate] at java.lang.reflect.Method.invoke(Unknown Source)
[hibernate] at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
[hibernate] at org.apache.tools.ant.Task.perform(Task.java:348)
[hibernate] at org.apache.tools.ant.Target.execute(Target.java:357)
[hibernate] at org.apache.tools.ant.Target.performTasks(Target.java:385)
[hibernate] at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
[hibernate] at org.apache.tools.ant.Project.executeTarget(Project.java:1298)
[hibernate] at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
[hibernate] at org.apache.tools.ant.Project.executeTargets(Project.java:1181)
[hibernate] at org.apache.tools.ant.Main.runBuild(Main.java:698)
[hibernate] at org.apache.tools.ant.Main.startAnt(Main.java:199)
[hibernate] at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
[hibernate] at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)
[hibernate] 2008-7-15 15:48:16 org.hibernate.dialect.Dialect <init>
[hibernate] 信息: Using dialect: org.hibernate.dialect.PostgreSQLDialect
[hibernate] 2008-7-15 15:48:16 org.hibernate.transaction.TransactionFactoryFactory buildTransactionFactory
[hibernate] 信息: Using default transaction strategy (direct JDBC transactions)
[hibernate] 2008-7-15 15:48:16 org.hibernate.transaction.TransactionManagerLookupFactory getTransactionManagerLookup
[hibernate] 信息: No TransactionManagerLookup configured (in JTA environment, use of read-write or transactional second-level cache is not recommended)
[hibernate] 2008-7-15 15:48:16 org.hibernate.cfg.SettingsFactory buildSettings
[hibernate] 信息: Automatic flush during beforeCompletion(): disabled
[hibernate] 2008-7-15 15:48:16 org.hibernate.cfg.SettingsFactory buildSettings
[hibernate] 信息: Automatic session close at end of transaction: disabled
[hibernate] 2008-7-15 15:48:16 org.hibernate.cfg.SettingsFactory buildSettings
[hibernate] 信息: Scrollable result sets: disabled
[hibernate] 2008-7-15 15:48:16 org.hibernate.cfg.SettingsFactory buildSettings
[hibernate] 信息: JDBC3 getGeneratedKeys(): disabled
[hibernate] 2008-7-15 15:48:16 org.hibernate.cfg.SettingsFactory buildSettings
[hibernate] 信息: Connection release mode: auto
[hibernate] 2008-7-15 15:48:16 org.hibernate.cfg.SettingsFactory buildSettings
[hibernate] 信息: Default schema:
[hibernate] 2008-7-15 15:48:16 org.hibernate.cfg.SettingsFactory buildSettings
[hibernate] 信息: Default batch fetch size: 1
[hibernate] 2008-7-15 15:48:16 org.hibernate.cfg.SettingsFactory buildSettings
[hibernate] 信息: Generate SQL with comments: disabled
[hibernate] 2008-7-15 15:48:16 org.hibernate.cfg.SettingsFactory buildSettings
[hibernate] 信息: Order SQL updates by primary key: disabled
[hibernate] 2008-7-15 15:48:16 org.hibernate.cfg.SettingsFactory buildSettings
[hibernate] 信息: Order SQL inserts for batching: disabled
[hibernate] 2008-7-15 15:48:16 org.hibernate.cfg.SettingsFactory createQueryTranslatorFactory
[hibernate] 信息: Query translator: org.hibernate.hql.ast.ASTQueryTranslatorFactory
[hibernate] 2008-7-15 15:48:16 org.hibernate.hql.ast.ASTQueryTranslatorFactory <init>
[hibernate] 信息: Using ASTQueryTranslatorFactory
[hibernate] 2008-7-15 15:48:16 org.hibernate.cfg.SettingsFactory buildSettings
[hibernate] 信息: Query language substitutions: {}
[hibernate] 2008-7-15 15:48:16 org.hibernate.cfg.SettingsFactory buildSettings
[hibernate] 信息: JPA-QL strict compliance: disabled
[hibernate] 2008-7-15 15:48:16 org.hibernate.cfg.SettingsFactory buildSettings
[hibernate] 信息: Second-level cache: enabled
[hibernate] 2008-7-15 15:48:16 org.hibernate.cfg.SettingsFactory buildSettings
[hibernate] 信息: Query cache: disabled
[hibernate] 2008-7-15 15:48:16 org.hibernate.cfg.SettingsFactory createCacheProvider
[hibernate] 信息: Cache provider: org.hibernate.cache.HashtableCacheProvider
[hibernate] 2008-7-15 15:48:16 org.hibernate.cfg.SettingsFactory buildSettings
[hibernate] 信息: Optimize cache for minimal puts: disabled
[hibernate] 2008-7-15 15:48:16 org.hibernate.cfg.SettingsFactory buildSettings
[hibernate] 信息: Structured second-level cache entries: disabled
[hibernate] 2008-7-15 15:48:16 org.hibernate.cfg.SettingsFactory buildSettings
[hibernate] 信息: Statistics: disabled
[hibernate] 2008-7-15 15:48:16 org.hibernate.cfg.SettingsFactory buildSettings
[hibernate] 信息: Deleted entity synthetic identifier rollback: disabled
[hibernate] 2008-7-15 15:48:16 org.hibernate.cfg.SettingsFactory buildSettings
[hibernate] 信息: Default entity-mode: pojo
[hibernate] 2008-7-15 15:48:16 org.hibernate.cfg.SettingsFactory buildSettings
[hibernate] 信息: Named query checking : enabled
[hibernate] 2008-7-15 15:48:17 org.hibernate.connection.DriverManagerConnectionProvider close
[hibernate] 信息: cleaning up connection pool: jdbc:postgresql://localhost/seam