java - 如何使用 Java 将数据存储到 MongoDb 数据库中？

Question

我对 MongoDB 相当陌生，我遇到了如何将数组中的数据存储到 mongodb 数据库中的问题？由于某种原因，当我实现以下代码时，出现很多错误。

    private void storeData(String[] trainSeats, String[] customerName, String[] traincustomerSeats){

        MongoClient dbb = new MongoClient("localhost", 27017);
        DB dbs = dbb.getDB("Train Customers and Seats");
        DBCollection coll1 = dbs.getCollection("CW1");
        DBCollection coll2 = dbs.getCollection("CW2");
        DBCollection coll3 = dbs.getCollection("CW3");

        BasicDBObject oneDoc = new BasicDBObject();
        for (int k = 1; k < trainSeats.length; k++){
            oneDoc.append(String.valueOf(k), trainSeats[k]);
        }
        coll1.insert(oneDoc);

        BasicDBObject twoDoc = new BasicDBObject();
        for(int k = 1; k < customerName.length; k++){
            twoDoc.append(String.valueOf(k), customerName[k]);
        }
        coll2.insert(twoDoc);

        BasicDBObject threeDoc = new BasicDBObject();
        for(int k = 1; k < traincustomerSeats.length; k++){
            threeDoc.append(String.valueOf(k), traincustomerSeats[k]);
        }
        coll3.insert(threeDoc);

        optionEnter(trainSeats,customerName,traincustomerSeats);
    }

以下是我运行上述代码时遇到的错误:

click to view the errors

Answer 1

我看到了你的错误日志。您收到此错误的原因是您的数据库名称“Train Customers and Seats” 有大量空格 ' '，这是数据库中不允许的名称。

将数据库重命名为“Train_Customers_and_Seats”或“TrainCustomersAndSeats”