@BeforeClass
public static void before() throws UnknownHostException, MongoException {
connector = new MongoConnector("localhost", 27017);
dao = connector.getDao(DB_NAME);
DB db = connector.getMongo().getDB(DB_NAME);
coll = db.getCollection("student");
dao.create(Student.class, true);
dao.save(new Student());
System.out.println("预热完成开始测试...");
}
@AfterClass
public static void after() {
dao.cleanCursors();
connector.close();
}