Morphia配合mongoDB喜欢Hibernate关系型数据库.也能够想到Morphia于MongoDB它调用上述的基础上，mongoDB语法.

于java直接通话Morphia的api它会变得更加简单快捷.

1.加mongoDB和Morphia的Jar包.

//创建连接源

Mongo mongo = null;

		try {

			mongo = new Mongo();

		} catch (UnknownHostException e) {

			e.printStackTrace();

		}

		Morphia morphia = new Morphia();

		Datastore ds = morphia.createDatastore(mongo, "test");

//查找

		for(User user:ds.find(User.class, "password", "admin")){

			System.out.println(user);

		}

		System.out.println(ds.find(User.class, "password", "admin").get());

		//插入

		User user1 = new User("00018", "hello1", "hello1");

		User user2 = new User("00019", "hello2", "hello2");

		List<User> list = new ArrayList<>();

		list.add(user1);

		list.add(user2);

		ds.save(list);

	// 改动

		Query<User> query =

				ds.createQuery(User.class).field("uid").equal("00013");

		UpdateOperations<User> uo =

				ds.createUpdateOperations(User.class).set("password",

						"IDONTKONW").set("userName", "IDONTKONW");

		ds.update(query, uo);

		/**

		 * 删除

		 *

		 */

		// ds.delete(User.class, "00018");

		Query<User> query = ds.createQuery(User.class).field("userName").contains("t");

		ds.delete(query);