Neo4j是世界领先的图形数据库。 它是一个高性能图形存储，具有一个成熟而健壮的数据库所需的所有功能，如友好的查询语言和酸性事务。程序员使用的是一个灵活的节点和关系网络结构，而不是静态表，但却享受到企业级数据库的所有好处。对于许多应用程序而言，Neo4j与关系型数据库相比提供了数量级的性能优势。
Neo4j的原生图存储和处理引擎提供不间断的实时性能，帮助企业构建智能应用程序，以应对当今不断变化的数据挑战。
Neo4j is the world’s leading Graph Database. It is a high performance graph store with all the features expected of a mature and robust database, like a friendly query language and ACID transactions. The programmer works with a flexible network structure of nodes and relationships rather than static tables — yet enjoys all the benefits of enterprise-quality database. For many applications, Neo4j offers orders of magnitude performance benefits compared to relational DBs.
Learn more on the Neo4j website.
Neo4j：面向每个人的图形
Neo4j是世界领先的图形数据库。它是一种高性能图存储，具有成熟、强大的数据库应有的所有功能，如友好的查询语言和 ACID 事务。程序员使用的是由节点和关系组成的灵活网络结构，而不是静态表格，但却能享受企业级数据库的所有优势。与关系数据库相比，Neo4j 为许多应用提供了数量级的性能优势。
Neo4j is available both as a standalone server, or an embeddable component. You can download or try online.
Neo4j 既可以作为独立的服务器，也可以作为可嵌入的组件。您可以下载或在线试用。
We encourage experimentation with Neo4j. You can build extensions to Neo4j, develop library or drivers atop the product, or make contributions directly to the product core. You’ll need to sign a Contributor License Agreement in order for us to accept your patches.
我们鼓励使用 Neo4j 进行实验。你可以为Neo4j构建扩展，在产品之上开发库或驱动程序，或者直接为产品核心做贡献。您需要签署一份《贡献者许可协议》（Contributor License Agreement），以便我们接受您的补丁。
Neo4j is built using Apache Maven version 3.8.2 and a recent version of supported VM. Bash and Make are also required. Note that maven needs more memory than the standard configuration, this can be achieved with export MAVEN_OPTS="-Xmx2048m".
macOS users need to have Homebrew installed.
brew install maven
Please note that we do not support building Debian packages on macOS.
Before you start running the unit and integration tests in the Neo4j Maven project on a Linux-like system, you should ensure your limit on open files is set to a reasonable value. You can test it with ulimit -n. We recommend you have a limit of at least 40K.
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A plain
mvn clean install -T1Cwill only build the individual jar files. -
Test execution is, of course, part of the build.
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In case you just want the jars, without running tests, this is for you:
mvn clean install -DskipTests -T1C. -
You may need to increase the memory available to Maven:
export MAVEN_OPTS="-Xmx2048m"(try this first if you get build errors).
After running a mvn clean install, cd into packaging/standalone/target and extract the version you want, then:
bin/neo4j-admin server start
in the extracted folder to start Neo4j on localhost:7474. On Windows you want to run:
bin\neo4j-admin server start
instead.
Neo4j Desktop is a convenient way for developers to work with local Neo4j databases.
To install Neo4j Desktop, go to Neo4j Download Center and follow the instructions.
Neo4j Community Edition is an open source product licensed under GPLv3.
Neo4j Enterprise Edition includes additional closed-source components not available in this repository and requires a commercial license from Neo4j or one of its affiliates.
Neo4j’s trademark policy is available at our trademark policy page.
