来自mongo java客户端的MongoDB身份验证失败

我尝试使用mongo java客户端版本3.2连接到mongo db版本3.2，得到了以下异常，知道这里出了什么问题吗

com.mongodb.MongoSecurityException: Exception authenticating
at com.mongodb.connection.NativeAuthenticator.authenticate(NativeAuthenticator.java:48)
at com.mongodb.connection.InternalStreamConnectionInitializer.authenticateAll(InternalStreamConnectionInitializer.java:99)
at com.mongodb.connection.InternalStreamConnectionInitializer.initialize(InternalStreamConnectionInitializer.java:44)
at com.mongodb.connection.InternalStreamConnection.open(InternalStreamConnection.java:115)
at com.mongodb.connection.DefaultServerMonitor$ServerMonitorRunnable.run(DefaultServerMonitor.java:128)
at java.lang.Thread.run(Thread.java:745)
Caused by: com.mongodb.MongoCommandException: Command failed with error 18: 'auth failed' on server 10.100.5.41:27017. The full response is { "ok" : 0.0, "errmsg" : "auth failed", "code" : 18 }
at com.mongodb.connection.CommandHelper.createCommandFailureException(CommandHelper.java:170)
at com.mongodb.connection.CommandHelper.receiveCommandResult(CommandHelper.java:123)
at com.mongodb.connection.CommandHelper.executeCommand(CommandHelper.java:32)
at com.mongodb.connection.NativeAuthenticator.authenticate(NativeAuthenticator.java:46)
... 5 more

下面是我用来连接的代码

MongoClient mongoClient = null;

    try {
        MongoCredential credential = MongoCredential.createMongoCRCredential("admin", "mydatabase", "admin123".toCharArray());
        mongoClient = new MongoClient(new ServerAddress("10.100.5.41", 27017), Arrays.asList(credential));

        MongoDatabase database = mongoClient.getDatabase("mydatabase");
        System.out.println(database.getName());
        MongoCollection collection = database.getCollection("user");

        MongoCursor cursor = collection.find().iterator();
        while (cursor.hasNext()) {
            System.out.println(cursor.next());
        }

    } catch (Exception e) {
        e.printStackTrace();
    }

---

经过数小时的调试，db管理员告诉我们，他已经更改了用户名和密码。有时我想知道为什么我会成为一名软件工程师。

您是否在mydatabase或admin（默认设置）中添加了用户？或者换句话说，在createMongoCRCredential中尝试使用admin作为数据库。@Zeus代码似乎正确。我也在做同样的事情，连接到我的服务器没有问题。在身份验证过程中，检查服务器上的日志是否存在错误。请有人关闭这个问题，经过数小时的调试，db管理员告诉我们，他已经更改了用户名和密码。有时我想知道为什么我会成为一名软件工程师。@Zeus用你刚才说的回答你的问题并接受it@neomega太好了，谢谢你的提示。