Hibernate入门之自己写的小例子的总结

上面的问题已经解决，
可是插不了数据进入表：
2004-3-26 22:01:58 net.sf.hibernate.cfg.Environment <clinit>
信息: Hibernate 2.1.2
2004-3-26 22:01:59 net.sf.hibernate.cfg.Environment <clinit>
信息: loaded properties from resource hibernate.properties: {hibernate.connection.driver_class=org.gjt.mm.mysql.Driver, hibernate.cglib.use_reflection_optimizer=true, hibernate.dialect=net.sf.hibernate.dialect.MySQLDialect, hibernate.jdbc.use_streams_for_binary=true, hibernate.jdbc.batch_size=0, hibernate.query.substitutions=true 1, false 0, yes 'Y', no 'N', hibernate.query.imports=net.sf.hibernate.test, net.sf.hibernate.eg, hibernate.connection.username=root, hibernate.connection.url=jdbc:mysql://localhost/test?useUnicode=true&characterEncoding=GBK, hibernate.show_sql=false, hibernate.connection.password=01022112, hibernate.statement_cache.size=25, hibernate.connection.pool_size=1}
2004-3-26 22:01:59 net.sf.hibernate.cfg.Environment <clinit>
信息: using java.io streams to persist binary types
2004-3-26 22:01:59 net.sf.hibernate.cfg.Environment <clinit>
信息: using CGLIB reflection optimizer
2004-3-26 22:01:59 net.sf.hibernate.cfg.Configuration addClass
信息: Mapping resource: hiberante/PersonModel.hbm.xml
2004-3-26 22:02:01 net.sf.hibernate.cfg.Binder bindRootClass
信息: Mapping class: hiberante.PersonModel -> ZY_PERSON
2004-3-26 22:02:01 net.sf.hibernate.cfg.Configuration secondPassCompile
信息: processing one-to-many association mappings
2004-3-26 22:02:01 net.sf.hibernate.cfg.Configuration secondPassCompile
信息: processing one-to-one association property references
2004-3-26 22:02:01 net.sf.hibernate.cfg.Configuration secondPassCompile
信息: processing foreign key constraints
2004-3-26 22:02:01 net.sf.hibernate.dialect.Dialect <init>
信息: Using dialect: net.sf.hibernate.dialect.MySQLDialect
2004-3-26 22:02:01 net.sf.hibernate.cfg.SettingsFactory buildSettings
信息: Use outer join fetching: true
2004-3-26 22:02:01 net.sf.hibernate.connection.DriverManagerConnectionProvider configure
信息: Using Hibernate built-in connection pool (not for production use!)
2004-3-26 22:02:01 net.sf.hibernate.connection.DriverManagerConnectionProvider configure
信息: Hibernate connection pool size: 1
2004-3-26 22:02:01 net.sf.hibernate.connection.DriverManagerConnectionProvider configure
信息: using driver: org.gjt.mm.mysql.Driver at URL: jdbc:mysql://localhost/test?useUnicode=true&characterEncoding=GBK
2004-3-26 22:02:01 net.sf.hibernate.connection.DriverManagerConnectionProvider configure
信息: connection properties: {user=root, password=01022112}
2004-3-26 22:02:01 net.sf.hibernate.transaction.TransactionManagerLookupFactory getTransactionManagerLookup
信息: No TransactionManagerLookup configured (in JTA environment, use of process level read-write cache is not recommended)
2004-3-26 22:02:02 net.sf.hibernate.cfg.SettingsFactory buildSettings
信息: Use scrollable result sets: true
2004-3-26 22:02:02 net.sf.hibernate.cfg.SettingsFactory buildSettings
信息: Use JDBC3 getGeneratedKeys(): false
2004-3-26 22:02:02 net.sf.hibernate.cfg.SettingsFactory buildSettings
信息: Optimize cache for minimal puts: false
2004-3-26 22:02:02 net.sf.hibernate.cfg.SettingsFactory buildSettings
信息: Query language substitutions: {no='N', true=1, yes='Y', false=0}
2004-3-26 22:02:02 net.sf.hibernate.cfg.SettingsFactory buildSettings
信息: cache provider: net.sf.ehcache.hibernate.Provider
net.sf.hibernate.HibernateException: could not instantiate CacheProvider: net.sf.ehcache.hibernate.Provider
at net.sf.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:133)
at net.sf.hibernate.cfg.Configuration.buildSettings(Configuration.java:1119)
at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:748)
at hiberante.TestPersonModel2.main(TestPersonModel2.java:33)
Caused by: java.lang.ClassNotFoundException: net.sf.ehcache.hibernate.Provider
at java.net.URLClassLoader$1.run(URLClassLoader.java:198)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:186)
at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:265)
at java.lang.ClassLoader.loadClass(ClassLoader.java:255)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:315)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:140)
at net.sf.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:86)
at net.sf.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:130)
... 3 more
2004-3-26 22:02:02 net.sf.hibernate.connection.DriverManagerConnectionProvider close
信息: cleaning up connection pool: jdbc:mysql://localhost/test?useUnicode=true&characterEncoding=GBK
Exception in thread "main"

信息: no JNDI name configured
java.lang.NoClassDefFoundError: javax/transaction/Synchronization
at net.sf.hibernate.impl.Sessi

这个例子代码中下面这段是存在较大性能问题的：
    /*-------添加1000条记录时间--------------*/
    long start = System.currentTimeMillis();
    for(int i = 0; i < 1000; i ++) {
      Message message = new Message("hello");
      session.save(message);
      session.flush();
    }

大家把循环次数改为10000和100000试试，看看花了多少时间？

以下是我机器上的数据(P4 2G+512M+MySQL，和例子程序都运行在一台PC上):
循环次数：    1,000       10,000         100,000
所花时间：    2.25s        134.14s       等了15分钟，等不了了

不要怀疑MySQL，只要把session.flush(); 这一句移到循环外面，就有以下结果：
循环次数：    1,000       10,000         100,000
所花时间：    0.86s        5.75s           47.734s

我刚开始学，所以我更觉得越是给初学者看的，越要保证正确性，否则会误导一大批！

不好意思，放错地方了。

我自己先建立了个表，里面就userid,和name两个字段，我现在就报这个错。2004-11-26 15:26:26 net.sf.hibernate.util.XMLHelper$ErrorLogger error
严重: Error parsing XML: XML InputStream(10) The content of element type "class" must match "(meta*,(cache|jcs-cache)?,(id|composite-id),discriminator?,(version|timestamp)?,(property|many-to-one|one-to-one|component|dynamic-component|any|map|set|list|bag|idbag|array|primitive-array)*,(subclass*|joined-subclass*))".
net.sf.hibernate.MappingException: Error reading resource: test/Name.hbm.xml
at net.sf.hibernate.cfg.Configuration.addClass(Configuration.java:336)
at test.TestName.main(TestName.java:27)

我的xml是这样写的。
<?xml version="1.0" encoding="GB2312"?>
<!DOCTYPE hibernate-mapping SYSTEM "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd" >
<hibernate-mapping>
  <class name="test.Name"
         table="ZY.name">
    <property name="userid"/>
    <property name="name"/>
  </class>
</hibernate-mapping>

我自己在程序理设置id不行吗，要是不行的话，我怎么改呀。

修改为：

<?xml version="1.0" encoding="GB2312"?>
<!DOCTYPE hibernate-mapping SYSTEM "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">
<hibernate-mapping>
	<class name="test.Name" table="ZY.name">
		<id column="userid" name="userid" type="integer">
			<!-- 主键生成有程序指定 -->
			<generator class="assigned"/>
		</id>
		<property name="name" type="string"/>
	</class>
</hibernate-mapping>

必须指定ID属性

谢谢，我现在又有个问题，我装的是，oracle9i，我不可能去装8i，难道就是不支持9i吗，我用这个驱动oracle.jdbc.driver.OracleDriver，不用hibernate也没问题呀，可以用的，可是现在就报这个错。
信息: no JNDI name configured

java.lang.UnsupportedOperationException: The user must supply a JDBC connection
at net.sf.hibernate.connection.UserSuppliedConnectionProvider.getConnection(UserSuppliedConnectionProvider.java:32)
at net.sf.hibernate.impl.BatcherImpl.openConnection(BatcherImpl.java:278)
at net.sf.hibernate.impl.SessionImpl.connect(SessionImpl.java:3264)
at net.sf.hibernate.impl.SessionImpl.connection(SessionImpl.java:3244)
at net.sf.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:40)
at net.sf.hibernate.transaction.JDBCTransactionFactory.beginTransaction(JDBCTransactionFactory.java:19)
at net.sf.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:2195)
at test.TestName.main(TestName.java:34)
不知道怎么去改，请帮下忙