JDO - datanucleus - HSQL错误

对于我目前的项目，我必须使用HSQL-JDO。我正在写示例应用程序来检查这个工作。如果我使用HSQL与jdbc（没有任何orm）我的代码运行良好。但随着JDO我收到 “套接字创建错误”JDO - datanucleus - HSQL错误

[[email protected]]: [Thread[main,5,main]]: checkRunning(false) entered [[email protected]]: [Thread[main,5,main]]: checkRunning(false) exited [[email protected]]: [Thread[main,5,main]]: checkRunning(false) entered [[email protected]]: [Thread[main,5,main]]: checkRunning(false) exited [[email protected]]: [Thread[main,5,main]]: checkRunning(false) entered [[email protected]]: [Thread[main,5,main]]: checkRunning(false) exited [[email protected]]: [Thread[main,5,main]]: checkRunning(false) entered [[email protected]]: [Thread[main,5,main]]: checkRunning(false) exited JdbcOdbcDriver class loaded registerDriver: driver[className=sun.jdbc.odbc.JdbcOdbcDriver,[email protected]] DriverManager.initialize: jdbc.drivers = null JDBC DriverManager initialized registerDriver: driver[className=org.hsqldb.jdbcDriver,[email protected]] DriverManager.getConnection("jdbc:hsqldb:hsql://localhost:8974/test_db") trying driver[className=sun.jdbc.odbc.JdbcOdbcDriver,[email protected]] *Driver.connect (jdbc:hsqldb:hsql://localhost:8974/test_db) trying driver[className=org.hsqldb.jdbcDriver,[email protected]] SQLState(08000) vendor code(-80) java.sql.SQLException: socket creation error at org.hsqldb.jdbc.Util.sqlException(Unknown Source) at org.hsqldb.jdbc.jdbcConnection.(Unknown Source) at org.hsqldb.jdbcDriver.getConnection(Unknown Source) at org.hsqldb.jdbcDriver.connect(Unknown Source) at java.sql.DriverManager.getConnection(Unknown Source) at java.sql.DriverManager.getConnection(Unknown Source) at org.apache.commons.dbcp.DriverManagerConnectionFactory.createConnection(DriverManagerConnectionFactory.java:78) at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:582) at org.apache.commons.pool.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:1158) at org.apache.commons.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:106) at org.datanucleus.store.rdbms.ConnectionFactoryImpl$ManagedConnectionImpl.getConnection(ConnectionFactoryImpl.java:444) at org.datanucleus.store.rdbms.RDBMSStoreManager.(RDBMSStoreManager.java:264)

这里是主 Server server = new Server(); server.setAddress("localhost"); server.setDatabaseName(0, "test_db"); server.setDatabasePath(0, "test_db"); server.setPort(8974); server.setTrace(true);

 Properties properties = new Properties(); 
    properties.setProperty("javax.jdo.PersistenceManagerFactoryClass","org.datanucleus.api.jdo.JDOPersistenceManagerFactory"); 
    properties.setProperty("javax.jdo.option.ConnectionDriverName","org.hsqldb.jdbcDriver"); 
    properties.setProperty("javax.jdo.option.ConnectionURL","jdbc:hsqldb:hsql://localhost:8974/test_db"); 
    properties.setProperty("javax.jdo.option.ConnectionUserName","SA"); 
    properties.setProperty("javax.jdo.option.ConnectionPassword",""); 
    properties.setProperty("javax.jdo.option.ConnectionPassword",""); 

    properties.setProperty("datanucleus.autoCreateSchema","true"); 
    properties.setProperty("datanucleus.validateTables","false"); 
    properties.setProperty("datanucleus.validateConstraints","false"); 

    PersistenceManagerFactory pmf = JDOHelper.getPersistenceManagerFactory(properties); 

    PersistenceManager pm = pmf.getPersistenceManager(); 
    Transaction tx=pm.currentTransaction(); 

    tx.begin(); 
    pm.makePersistent(new Session("aniruddha")); 
    tx.commit(); 

    Query q = pm.newQuery("SELECT FROM "+Session.class.getName()); 

    List<Session> sessions = (List<Session>)q.execute(); 
    //Iterator<Session> iter = sessions.iterator(); 

    for(Session s : sessions){ 
     System.out.println(s.getSESSION_ID()+" : "+s.getSESSION_USERNAME()); 
    }

下面的代码是我要坚持

@PersistenceCapable public class Session { private Session(){ // Default constructor required by jdo } public Session(String session_username){ SESSION_USERNAME = session_username; }

 public long getSESSION_ID() { 
    return SESSION_ID; 
} 
public String getSESSION_USERNAME() { 
    return SESSION_USERNAME; 
} 
public void setSESSION_ID(long sESSION_ID) { 
    SESSION_ID = sESSION_ID; 
} 
public void setSESSION_USERNAME(String sESSION_USERNAME) { 
    SESSION_USERNAME = sESSION_USERNAME; 
} 


@PrimaryKey 
@Persistent(valueStrategy=IdGeneratorStrategy.INCREMENT) 
private long SESSION_ID; 
private String SESSION_USERNAME;

}

来源

2012-05-17 Aniruddha

如果我将连接字符串放在“jdbc：hsqldb：file：test_db”之类的地方，Google搜索该异常和HSQL将提供大量信息 – DataNucleus

。有用。但是如果连接字符串类似于“jdbc：hsqldb：hsql：// localhost：8974/test_db”给我“套接字创建错误” – Aniruddha

它看起来是我的配置有问题。我没有谷歌，但没有发现解决问题。 – Aniruddha

豆如果服务器模式不起作用，那么您还没有启动HSQLDB服务器。适用于任何形式的网站或文件。我完全按照HSQLDB文档从命令行启动服务器。

随着你的API调用服务器，你似乎缺少调用“server.start（）”。无论哪种方式，问题是在HSQLDB服务器启动，而不是DataNucleus访问。

来源

2012-05-18 17:18:56 DataNucleus

感谢您的回复。我的问题解决了。我没有启动服务器。 – Aniruddha

JDO - datanucleus - HSQL错误

回答

相关问题