Play Framework 2.5如何添加mongoDB？ [英] Play Framework 2.5 how to add mongoDB?

问题描述

我想在Play Framework 2.5应用程序中添加MongoDB。


我们可以看到这个模块 here ，在PF的文档中。

如何在我的应用程序中添加此模块？
@MongoEntity非常有用，但它是为1. * PF app写的。

I want to add MongoDB in my Play Framework 2.5 Application.
We can see this module here, in the documentation of PF.
How can I add this module in my app?
The @MongoEntity is really helpfull,but it's writen for 1.* PF app.

有2.5 PF的MongoDB模块？

我尝试过的另一件事：为2. *添加play-mongo模块（通过louth）但是在我的build.sbt中添加它们是不可能的：
图片。

There is a MongoDB module for 2.5 PF?
And an other thing I've tryed: add play-mongo module (by louth) for 2.* but in my build.sbt it's impossible to add them: image.

推荐答案

您是使用Scala还是Java？

Are you on Scala or Java?

对于Scala，请查看 ReactMongo

For Scala, look at ReactMongo

对于Java，我也没有遇到任何插件，所以我开始使用 Morphia 。这是我如何配置它

For Java, I didnt come across any plugins too, so I started using Morphia. Here's how I have configured it

将此添加到build.sbt

Add this to build.sbt

    "org.mongodb.morphia" % "morphia" % "1.2.1",

这个到application.conf

And this to application.conf

    mongodb {
      host="localhost"
      port=27017
      database="my_db"
    }

现在，你必须创建一个Singleton类，喜欢

Now, you have to create a Singleton class, something like

public class MongoConfig {

    private static Datastore datastore;

    public static Datastore datastore() {
        if (datastore == null) {
            initDatastore();
        }
        return datastore;
    }

    public static void initDatastore() {

        final Morphia morphia = new Morphia();

        // Tell Morphia where to find our models
        morphia.mapPackage("models");

        MongoClient mongoClient = new MongoClient(
            ConfigFactory.load().getString("mongodb.host"),
            ConfigFactory.load().getInt("mongodb.port"));

        datastore = morphia.createDatastore(
            mongoClient, ConfigFactory.load().getString("mongodb.database"));
    }

}

样本模型

@Entity(value = "users", noClassnameStored = true)
public class User {

    public String name;

    public void save() {
        datastore().save(this);
    }

    public User query() {
        return datastore()
            .createQuery(User.class)
            .get();   
    }

}

这应该对你有用。如果我遗漏了什么，请告诉我。祝好运！ ：）

This should work for you. Let me know if I missed anything. Good luck! :)

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