Question

设置我的第一个Hibernate项目时遇到问题。我按照教程操作并在启动代码时卡住了。当我开始与HSQLDB建立连接时，我认为程序会卡住。它不提供任何错误消息控制台中的详细输出如下：

172 [main] INFO org.hibernate.annotations.common.Version - Hibernate Commons Annotations 3.2.0.Final
172 [main] INFO org.hibernate.cfg.Environment - Hibernate 3.6.10.Final
172 [main] INFO org.hibernate.cfg.Environment - hibernate.properties not found
187 [main] INFO org.hibernate.cfg.Environment - Bytecode provider name : javassist
187 [main] INFO org.hibernate.cfg.Environment - using JDK 1.4 java.sql.Timestamp handling
265 [main] INFO org.hibernate.cfg.Configuration - configuring from resource: /hibernate.cfg.xml
265 [main] INFO org.hibernate.cfg.Configuration - Configuration resource: /hibernate.cfg.xml
375 [main] INFO org.hibernate.cfg.Configuration - Reading mappings from resource : org/itg/ACLwithHibernate/User.hbm.xml
484 [main] INFO org.hibernate.cfg.Configuration - Configured SessionFactory: null

现在它已配置，我调用buildSessionFactory（）：

562 [main] INFO org.hibernate.cfg.HbmBinder - Mapping class: org.itg.ACLwithHibernate.User -> USER
577 [main] INFO org.hibernate.cfg.Configuration - Hibernate Validator not found: ignoring
593 [main] INFO org.hibernate.cfg.search.HibernateSearchEventListenerRegister - Unable to find org.hibernate.search.event.FullTextIndexEventListener on the classpath. Hibernate Search is not enabled.
593 [main] INFO org.hibernate.connection.DriverManagerConnectionProvider - Using Hibernate built-in connection pool (not for production use!)
593 [main] INFO org.hibernate.connection.DriverManagerConnectionProvider - Hibernate connection pool size: 10
593 [main] INFO org.hibernate.connection.DriverManagerConnectionProvider - autocommit mode: false
609 [main] INFO org.hibernate.connection.DriverManagerConnectionProvider - using driver: org.hsqldb.jdbcDriver at URL: jdbc:hsqldb:hsql://localhost:9001
609 [main] INFO org.hibernate.connection.DriverManagerConnectionProvider - connection properties: {user=sa, password=****}

而且......仅此而已。它永远不会继续我的main（）类中的下一个指令。它被卡在某处。当我调试时，我得到了这个：

overview of the debugger

这是我的hibernate.cfg.xml：

<hibernate-configuration>

    <session-factory>

        <!-- Database connection settings -->
        <property name="connection.driver_class">org.hsqldb.jdbcDriver</property>
        <property name="connection.url">jdbc:hsqldb:hsql://localhost:9001</property>
        <property name="connection.username">sa</property>
        <property name="connection.password"></property>

        <!-- JDBC connection pool (use the built-in) -->
        <property name="connection.pool_size">10</property>

        <!-- SQL dialect -->
        <property name="dialect">org.hibernate.dialect.HSQLDialect</property>

        <!-- Enable Hibernate's automatic session context management -->
        <property name="current_session_context_class">thread</property>

        <!-- Disable the second-level cache  -->
        <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>

        <!-- Echo all executed SQL to stdout -->
        <property name="show_sql">true</property>

        <!-- Drop and re-create the database schema on startup -->
        <property name="hbm2ddl.auto">update</property>

        <mapping resource="org/itg/ACLwithHibernate/User.hbm.xml"/>

    </session-factory>

</hibernate-configuration>

我的HSQLDB服务器正在运行并输出以下内容：

[Server@3ed5dee4]: [Thread[org.hsqldb.Server.main(),5,org.hsqldb.Server]]: checkRunning(false) entered
[Server@3ed5dee4]: [Thread[org.hsqldb.Server.main(),5,org.hsqldb.Server]]: checkRunning(false) exited
[Server@3ed5dee4]: Startup sequence initiated from main() method
[Server@3ed5dee4]: Loaded properties from [C:\Users\dbr\workspace\test_hibernate\server.properties]
[Server@3ed5dee4]: Initiating startup sequence...
[Server@3ed5dee4]: Server socket opened successfully in 0 ms.
[Server@3ed5dee4]: Database [index=0, id=0, db=file:target/data/tutorial, alias=] opened sucessfully in 630 ms.
[Server@3ed5dee4]: Startup sequence completed in 640 ms.
[Server@3ed5dee4]: 2012-07-18 12:36:53.717 HSQLDB server 2.0.0 is online on port 9001
[Server@3ed5dee4]: To close normally, connect and execute SHUTDOWN SQL
[Server@3ed5dee4]: From command line, use [Ctrl]+[C] to abort abruptly

当server.silent = false时，当我的客户端连接时，我还会得到以下内容：

[Thread[HSQLDB Server @1af5458a,5,org.hsqldb.Server]]: handleConnection(Socket[addr=/127.0.0.1,port=49438,localport=9001]) entered
[Thread[HSQLDB Server @1af5458a,5,org.hsqldb.Server]]: handleConnection() exited
[Thread[HSQLDB Connection @9437a04,5,HSQLDB Connections @1af5458a]]: ODBC client connected.  ODBC Protocol Compatibility Version 0.0

你以前遇到过类似的问题吗？你知道出了什么问题吗？非常感谢你提前达尼

Answer 1

当HSQLDB服务器与Hibernate或其他框架一起使用时，必须检查客户端和服务器使用的HSQLDB jar版本，并确保它们都是HSQLDB的相同版本。还必须使用最新版本的HSQLDB。

如果使用属性server.silent=false（或silent=false作为命令行参数）启动HSQLDB服务器，则很容易对其进行故障排除。这将显示尝试的连接。

在此示例中，服务器显示：

[Thread[HSQLDB Connection @9437a04,5,HSQLDB Connections @1af5458a]]: 
      ODBC client connected.  ODBC Protocol Compatibility Version 0.0

表示版本不兼容问题，因为ODBC实际上并未用于Java到HSQLDB连接。

Answer 2

它无法连接到您的数据库。用于调试从配置中删除连接池大小元素并将hbmtoddl设置为false。

Hibernate与HSQLDB的连接

2 个答案: