使用Neo4j嵌入式数据库和JDBC Bolt驱动程序进行Spring Boot测试 [英] Spring Boot Test using Neo4j embedded database with JDBC Bolt driver

问题描述

是否可以像使用H2内存数据库模拟Oracle数据库一样连接到嵌入式Neo4j数据库?

Is it possible to connect to an embedded Neo4j database the same way you would do with an H2 in-memory database to mock an Oracle database?

我试图做到这一点:

final BoltConnector boltConnector = new BoltConnector("bolt");
graphDb = new GraphDatabaseFactory()
        .newEmbeddedDatabaseBuilder(DB_PATH)
        .setConfig(boltConnector.type, BOLT.name())
        .setConfig(boltConnector.enabled, TRUE)
        .setConfig(boltConnector.listen_address, listenAddress("127.0.0.1", 7688))
        .setConfig(boltConnector.encryption_level, DISABLED.name())
        .setConfig(GraphDatabaseSettings.auth_enabled, FALSE)
        .newGraphDatabase();

然后使用具有以下spring.datasource配置的JDBC Bolt驱动程序发出请求:

And then make a request using the JDBC Bolt driver with the following spring.datasource configuration:

spring:
  profiles: test
  datasource:
    driver-class-name: org.neo4j.jdbc.bolt.BoltDriver
    url: jdbc:neo4j:bolt://127.0.0.1:7688/?nossl

但是我总是收到以下错误:

But I always get the following error:

Unable to connect to 127.0.0.1:7688, ensure the database is running and that there is a working network connection to it.

当然，当我使用graphDb实例并对它执行请求时，嵌入式数据库就可以工作.但是我希望我的应用程序像连接到远程Neo4j数据库一样，连接到嵌入式数据库. 这是出于测试目的.

Of course the embedded database works when I use the graphDb instance and execute requests against it. But I want my application to connect to the embedded database as it does when connecting to a remote Neo4j database. This is for testing purpose.

推荐答案

我终于RTFM ...
我的pom.xml中有以下依赖项:

I finally RTFM...
I had the following dependency in my pom.xml:

<dependency>
    <groupId>org.neo4j</groupId>
    <artifactId>neo4j</artifactId>
    <version>3.4.0</version>
</dependency>

然后我发现了: https://neo4j.com/docs/java-reference/current/tutorials-java-embedded/#tutorials-java-embedded-bolt 该文档有些过时，因为它使用了已弃用的配置.但是他们对此进行了解释:

Then I found this: https://neo4j.com/docs/java-reference/current/tutorials-java-embedded/#tutorials-java-embedded-bolt The documentation is a bit outdated because it uses deprecated configuration. But they explain this:

Neo4j浏览器和官方Neo4j驱动程序使用Bolt数据库 与Neo4j通信的协议.默认情况下，Neo4j Embedded执行 不暴露Bolt连接器，但是您可以启用一个.这样做允许 您可以将服务Neo4j Browser连接到嵌入式实例.

The Neo4j Browser and the official Neo4j Drivers use the Bolt database protocol to communicate with Neo4j. By default, Neo4j Embedded does not expose a Bolt connector, but you can enable one. Doing so allows you to connect the services Neo4j Browser to your embedded instance.

他们明确指出要使用的正确依赖项是:

And they make clear the correct dependency to use is:

<dependency>
    <groupId>org.neo4j</groupId>
    <artifactId>neo4j-bolt</artifactId>
    <version>3.4.0</version>
</dependency>

这篇关于使用Neo4j嵌入式数据库和JDBC Bolt驱动程序进行Spring Boot测试的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！