在春季启动时为Axon Framework设置Mongo Extension

问题描述

所以首先我添加了一个属性文件:

So at first I added a properties file with:

可以，但是我被迫使用axonframework作为数据库名称，因为它是在我的mongo数据库中创建的.

which works but I was forced to use axonframework as db name because it is what was created in my mongo db.

在这种情况下，现在无法控制数据库名称和其他详细信息，因此我四处检查并发现以下内容:

Now controlling the db name and other details isn't an option in this case, so I went and checked around and found the following:

@configuration
public class AxonConfiguration {

    @Value("${mongo.host:127.0.0.1}")
    private String mongoHost;

    @Value("${mongo.port:27017}")
    private int mongoPort;

    @Value("${mongo.db:test}")
    private String mongoDB;

    @Bean
    public MongoSagaStore sagaStore() {
        return new MongoSagaStore(axonMongoTemplate());
    }

    @Bean
    public TokenStore tokenStore(Serializer serializer) {
        return new MongoTokenStore(axonMongoTemplate(), serializer);
    }

    @Bean
    public EventStorageEngine eventStorageEngine(Serializer serializer) {
        return new MongoEventStorageEngine(serializer, null, axonMongoTemplate(), new DocumentPerEventStorageStrategy());
    }

    @Bean
    public MongoTemplate axonMongoTemplate() {
        return new DefaultMongoTemplate(mongo(), mongoDB);
    }

    @Bean
    public MongoClient mongo() {
        MongoFactory mongoFactory = new MongoFactory();
        mongoFactory.setMongoAddresses(Collections.singletonList(new ServerAddress(mongoHost, mongoPort)));
        return mongoFactory.createMongo();
    }
}

现在这显然对人们有用，但是我无法正确使用的是我应该如何设置用户名和密码?

Now apparently this worked for people but what I'm not being able to get right is how am I supposed to set the username and password?

我正在使用axon 4.1，axonframework.extensions.mongo 4.1

I'm using axon 4.1, axonframework.extensions.mongo 4.1

推荐答案

您共享的代码段与Axon Framework 4.x版或Axon Mongo Extension 4.x版不对应.从版本3到版本4的转变已经取代了基础结构组件的几乎所有构造函数，而采用了Builder模式.

The snippet of code you share does not correspond with Axon Framework release 4.x or Axon Mongo Extension release 4.x. The shift from version 3 to 4 has replaced almost all constructors of the infrastructure components in favor of the Builder pattern.

因此，您不应该执行new MongoEventStorageEngine(...)，而应该执行以下操作:

As such, you should not be able to do new MongoEventStorageEngine(...), but instead should do:

MongoEventStorageEngine.builder().mongoTemplate(axonMongoTemplate).build()

如果您仍然能够使用构造函数，那么我认为您在类路径上的某个地方仍然还有Axon 3！

If you're still able to use the constructor, I assume you still have Axon 3 somewhere on the class path!

关于Mongo的细节，顺便说一句，我相信@PolishCivil的声明.

Regarding the Mongo specifics, I'd trust @PolishCivil's statement by the way.

希望这会有所帮助！

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