连接到 MongoDB Atlas：com.mongodb.MongoCommandException：命令失败，错误 8000答案

【问题标题】：Connecting to MongoDB Atlas: com.mongodb.MongoCommandException: Command failed with error 8000连接到 MongoDB Atlas：com.mongodb.MongoCommandException：命令失败，错误 8000
【发布时间】：2018-01-09 15:03:37
【问题描述】：

所以我正在尝试连接到托管我的数据库的 MongoDB Atlas 服务（我过去做过没有问题），但我不断收到此错误，我不明白为什么。我找不到有同样问题的人，所以我很困惑。

Exception in thread "main" com.mongodb.MongoCommandException: Command failed with error 8000: 'not authorized on admin to execute command { insert: "adminCol", ordered: true, documents: [[{_id ObjectIdHex("5a4e3b6dd04f1c047975fdd5")} {id 512} {name peter jones} {hello hi}]] }' on server *******-shard-00-02-xygnn.mongodb.net:27017. The full response is { "ok" : 0, "errmsg" : "not authorized on admin to execute command { insert: \"adminCol\", ordered: true, documents: [[{_id ObjectIdHex(\"5a4e3b6dd04f1c047975fdd5\")} {id 512} {name peter jones} {hello hi}]] }", "code" : 8000, "codeName" : "AtlasError" }
at com.mongodb.connection.ProtocolHelper.getCommandFailureException(ProtocolHelper.java:164)
at com.mongodb.connection.InternalStreamConnection.receiveCommandMessageResponse(InternalStreamConnection.java:295)
at com.mongodb.connection.InternalStreamConnection.sendAndReceive(InternalStreamConnection.java:255)
at com.mongodb.connection.UsageTrackingInternalConnection.sendAndReceive(UsageTrackingInternalConnection.java:98)
at com.mongodb.connection.DefaultConnectionPool$PooledConnection.sendAndReceive(DefaultConnectionPool.java:441)
at com.mongodb.connection.CommandProtocolImpl.execute(CommandProtocolImpl.java:76)
at com.mongodb.connection.DefaultServer$DefaultServerProtocolExecutor.execute(DefaultServer.java:189)
at com.mongodb.connection.DefaultServerConnection.executeProtocol(DefaultServerConnection.java:263)
at com.mongodb.connection.DefaultServerConnection.command(DefaultServerConnection.java:126)
at com.mongodb.operation.MixedBulkWriteOperation.executeCommand(MixedBulkWriteOperation.java:373)
at com.mongodb.operation.MixedBulkWriteOperation.executeBulkWriteBatch(MixedBulkWriteOperation.java:255)
at com.mongodb.operation.MixedBulkWriteOperation.access$700(MixedBulkWriteOperation.java:66)
at com.mongodb.operation.MixedBulkWriteOperation$1.call(MixedBulkWriteOperation.java:199)
at com.mongodb.operation.MixedBulkWriteOperation$1.call(MixedBulkWriteOperation.java:190)
at com.mongodb.operation.OperationHelper.withReleasableConnection(OperationHelper.java:432)
at com.mongodb.operation.MixedBulkWriteOperation.execute(MixedBulkWriteOperation.java:190)
at com.mongodb.operation.MixedBulkWriteOperation.execute(MixedBulkWriteOperation.java:66)
at com.mongodb.Mongo$3.execute(Mongo.java:833)
at com.mongodb.MongoCollectionImpl.executeSingleWriteRequest(MongoCollectionImpl.java:1025)
at com.mongodb.MongoCollectionImpl.executeInsertOne(MongoCollectionImpl.java:513)
at com.mongodb.MongoCollectionImpl.insertOne(MongoCollectionImpl.java:493)
at com.mongodb.MongoCollectionImpl.insertOne(MongoCollectionImpl.java:487)
at AdminDB.addAdmin(AdminDB.java:51)
at AdminDB.main(AdminDB.java:76)

这是我正在使用的代码。

public class AdminDB {
    private MongoDatabase adminDB;
    private MongoCollection<Document> adminCollection;
    private String adminCol = "adminCol";

    public AdminDB() {
        MongoClientURI uri = new MongoClientURI(
                "mongodb://***********-shard-00-00-xygnn.mongodb.net:27017,*******-shard-00-01-xygnn.mongodb.net:27017,******-shard-00-02-xygnn.mongodb.net:27017/test?ssl=true&replicaSet=******-shard-0&authSource=admin");

        MongoClient mongoClient = new MongoClient(uri);
        adminDB = mongoClient.getDatabase("admin");
        adminCollection = adminDB.getCollection(adminCol);
    }

    public void addAdmin(JsonObject json) {
        adminCollection.insertOne(Document.parse(json.toString()));
    }

    public static void main(String[] args) {
        AdminDB adminDB = new AdminDB();
        JsonObject json = new JsonObject();
        json.addProperty("id", 512);
        json.addProperty("name", "peter jones");
        json.addProperty("hello", "hi");

        adminDB.addAdmin(json);
    }
}

【问题讨论】：

你不能在 atlas 上做mongoClient.getDatabase("admin");。这是一个特殊的数据库。此外，对于连接字符串中的其他 2 个实例，您忘记将 logindatabase 替换为 ***********。
@AlexBlex 那么你用什么来创建数据库呢？这就是我过去使用 atlas 的方法。干杯
admin 数据库已保留。使用另一个数据库名称。
@AlexBlex 啊，这当然是愚蠢的。非常感谢！

标签： java mongodb mongodb-atlas

【解决方案1】：

为了澄清，MongoDB Atlas M0（免费层）、M2 或 M5 共享启动集群不支持对管理数据库中的任何集合进行读/写操作。另见Command Limitations in Free Tier Clusters。

更改要插入文档的数据库名称：

    database = mongoClient.getDatabase("anotherDatabase");

【讨论】：