如何使用OpenShift中的JAVA连接到MongoDB服务器？

I have created a MongoDB instance in OpenShift. I can connect to it via RockMongo, which is a service offered by OpenShift.

我在OpenShift中创建了一个MongoDB实例。我可以通过RockMongo连接到它,这是OpenShift提供的服务。

I'm trying to connect to my instance using JAVA, but I just receive a Connection refuesed error. Moreover, I cannot connect it using RoboMongo.

我正在尝试使用JAVA连接到我的实例,但我收到一个Connection refuesed错误。而且,我无法使用RoboMongo连接它。

In my RockMongo status tab, I see the following information:

在我的RockMongo状态选项卡中,我看到以下信息:

Host: 127.11.201.2
Port: 27017

Using RoboMongo with MongoLab instance works just fine giving it the right credentials, but here with OpenShift it fails on connecting to the instance.

将RoboMongo与MongoLab实例一起使用可以很好地为它提供正确的凭据,但是在这里使用OpenShift时它无法连接到实例。

In my JAVA app I'm trying the following:

在我的JAVA应用程序中,我正在尝试以下方法:

MongoCredential credential = MongoCredential.createCredential(
                Const.MONGO_USERNAME, Cont.MONGO_DB,
                Const.MONGO_PASSWORD.toCharArray());
        mongo = new MongoClient(new ServerAddress(Const.MONGO_URI), Arrays.asList(credential));

With 127.11.201.2 as MONGO_URI. Why am I failing to connect to my instance? What am I doing wrong?

使用127.11.201.2作为MONGO_URI。为什么我无法连接到我的实例?我究竟做错了什么?

P.S using putty I am able to connect to my mongo instance by just executing the command mongo.

P.S使用putty我可以通过执行命令mongo连接到我的mongo实例。

1 个解决方案

#1

OpenShift provides environment variables, which you should use to connect to your MongoDB.

OpenShift提供环境变量,您应该使用它们连接到MongoDB。

OPENSHIFT_MONGODB_DB_HOST The MongoDB IP address

OPENSHIFT_MONGODB_DB_HOST MongoDB IP地址

OPENSHIFT_MONGODB_DB_PORT The MongoDB port

OPENSHIFT_MONGODB_DB_PORT MongoDB端口

OPENSHIFT_MONGODB_DB_USERNAME The MongoDB username

OPENSHIFT_MONGODB_DB_USERNAME MongoDB用户名

OPENSHIFT_MONGODB_DB_PASSWORD The MongoDB password

OPENSHIFT_MONGODB_DB_PASSWORD MongoDB密码

OPENSHIFT_MONGODB_DB_URL The MongoDB connection URL (e.g. mongodb://<username>:<password>@<hostname>:<port>/)

OPENSHIFT_MONGODB_DB_URL MongoDB连接URL(例如mongodb:// <用户名> : <密码> @ <主机名> : <端口> /)

I'm using one line of code to connect to the database:

我正在使用一行代码连接到数据库:

new MongoClient(new MongoClientURI(System.getenv("OPENSHIFT_MONGODB_DB_URL")));

#1