goja-rapid/src/main/java/goja/rapid/mongo/MongoKit.java
public static List<DBObject> findById(String collectionName, String id) {
        DBCollection c = MongoKit.getCollection(collectionName);
        return c.find(new BasicDBObject("_id", new ObjectId(id))).toArray();
    }
public static List<DBObject> findById(String collectionName, String id) {
        DBCollection c = MongoKit.getCollection(collectionName);
        return c.find(new BasicDBObject("_id", new ObjectId(id))).toArray();
    }
根据ID查找