Question

hibernate运行时出错！请各位帮帮忙啊！

七月 04, 2012 4:22:11 上午 org.hibernate.tool.hbm2ddl.SchemaUpdate execute
INFO: HHH000396: Updating schema
七月 04, 2012 4:22:11 上午 org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
WARN: SQL Error: 0, SQLState: null
七月 04, 2012 4:22:11 上午 org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
ERROR: No data found
七月 04, 2012 4:22:11 上午 org.hibernate.tool.hbm2ddl.SchemaUpdate execute
ERROR: HHH000299: Could not complete schema update
java.lang.NullPointerException
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:110)
at org.hibernate.tool.hbm2ddl.DatabaseMetadata.getTableMetadata(DatabaseMetadata.java:129)
at org.hibernate.cfg.Configuration.generateSchemaUpdateScript(Configuration.java:1133)
at org.hibernate.tool.hbm2ddl.SchemaUpdate.execute(SchemaUpdate.java:212)
at org.hibernate.tool.hbm2ddl.SchemaUpdate.execute(SchemaUpdate.java:178)
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:497)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1744)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1782)
at comm.bjsxt.hibernate.Test.main(Test.java:16)

Answer 1

你好，请仔细检查Test类中第16行代码，进入调试状态，代码中可能出现空指针的对象！

Answer 2

SessionFactory 没设置好，要变量+Set方法

Answer 3

还是不行啊，我用的odbc连得，是不是跟这有关。不过还是谢谢各位的帮忙啊！

Answer 4

at comm.bjsxt.hibernate.Test.main(Test.java:16)
这行空指针

Answer 5

空指针异常，查看是否有的值填写的不对。或者是web.xml配置