try{    
            String idfile="G:\\testNsf\\admin.id";   
            String pwd="123";   
            NotesThread.sinitThread(); // 启动线程   
            Session session = NotesFactory.createSession();    
            Registration r=session.createRegistration();   
            r.switchToID(idfile,pwd);   //关键！此外即为身份验证的代码   
            Database db = session.getDatabase("", "G:\\testNsf\\administ.nsf",true);   
            View vw = db.getView ("($Sent)");     
            Document doc = vw.getFirstDocument();          
            int i=1;   
            while (doc != null) {               
               System.out.println("----------------------第"+i+"封邮件");               
               System.out.println ("Subject:"+doc.getItemValueString("Subject"));    
               doc = vw.getNextDocument(doc);          
               i++;   
                 
            }    
}catch(NotesException e){   
        e.printStackTrace();   
}finally {    
         NotesThread.stermThread(); // 结束该线程   
}