公开SNS社区即时找朋友链的源代码和部署方案（续三）

Versant数据库可以很容易的建立和数据库之间的连接：

Iterator<DatabaseLoginHelper> ite = this.dblist.iterator();

DatabaseLoginHelper helper = (DatabaseLoginHelper)ite.next();
session = new TransSession(helper.getDatabaseNodeProperty());
session.setSchemaOption(TransSession.SCHEMA_ADD_DROP_ATTRIBUTES);

// System.out.println("Define Logical database:");
session.newLogicalDatabase(HPC_DEMO_NETWORK_NAME);

// System.out.println("Add to logical database:"+dbList[0]);
session.addToLogicalDatabase(HPC_DEMO_NETWORK_NAME, helper.databaseName);
System.out.println("Add to logical database:" + helper.databaseName);