Neo4j Spatial数据导入

朴灿烈づ我的快乐病毒、 2022-07-16 03:29 287阅读 0赞

首先，安装neo4j数据库。我的开发环境是Ubuntu，安装过程参考官网：[Neo4j Debian Packages][]，安装后配置：[Post-installation tasks][]。

然后安装Neo4j Spatial的插件，参加Github介绍：[neo4j-contrib/spatial][neo4j-contrib_spatial]。即把下载的文件解压到安装目录的plugins目录下$NEO4J\_HOME/plugins。

接下来，我们使用Java代码在客户端插入数据到neo4j数据库。  
我使用Maven构建工程（需要使用Java8进行maven编译）。pom文件如下：

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
    
        <groupId>cn.tzy</groupId>
        <artifactId>neo4j</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <packaging>jar</packaging>
    
        <name>neo4j</name>
        <url>http://maven.apache.org</url>
    
        <properties>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        </properties>
    
        <repositories>
            <repository>
                <id>repo2.maven.org</id>
                <name>maven2 repository</name>
                <url>http://repo2.maven.org/maven2/</url>
            </repository>
            <repository>
                <id>osgeo</id>
                <name>Open Source Geospatial Foundation Repository</name>
                <url>http://download.osgeo.org/webdav/geotools/</url>
            </repository>
            <repository>
                <id>neo4j-contrib-releases</id>
                <url>https://raw.github.com/neo4j-contrib/m2/master/releases</url>
                <releases>
                    <enabled>true</enabled>
                </releases>
                <snapshots>
                    <enabled>false</enabled>
                </snapshots>
            </repository>
            <repository>
                <id>neo4j-contrib-snapshots</id>
                <url>https://raw.github.com/neo4j-contrib/m2/master/snapshots</url>
                <releases>
                    <enabled>false</enabled>
                </releases>
                <snapshots>
                    <enabled>true</enabled>
                </snapshots>
            </repository>
        </repositories>
    
        <dependencies>
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>4.12</version>
                <scope>test</scope>
            </dependency>
            <dependency>
                <groupId>org.neo4j</groupId>
                <artifactId>neo4j</artifactId>
                <version>3.0.4</version>
            </dependency>
            <dependency>
                <groupId>org.neo4j</groupId>
                <artifactId>neo4j-spatial</artifactId>
                <version>0.23-neo4j-3.0.4</version>
            </dependency>
        </dependencies>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>3.5.1</version>
                    <configuration>
                        <source>1.8</source>
                        <target>1.8</target>
                    </configuration>
                </plugin>
            </plugins>
        </build>
    </project>

导入shapefile文件的代码入下：

package cn.tzy.neo4j;
    
    import java.io.File;
    import java.io.IOException;
    
    import org.neo4j.gis.spatial.ShapefileImporter;
    import org.neo4j.graphdb.GraphDatabaseService;
    import org.neo4j.graphdb.Transaction;
    import org.neo4j.graphdb.factory.GraphDatabaseFactory;
    
    public class Neo4jEx {
    
        public static void main(String[] args) throws IOException {
            File storeDir = new File("C:/Users/theone/Desktop/spatial.db");
            GraphDatabaseService database = new GraphDatabaseFactory().newEmbeddedDatabase(storeDir);
    
            try (Transaction tx = database.beginTx()) {
                ShapefileImporter importer = new ShapefileImporter(database);
                importer.importFile("F:/2016/Data/World/continent.shp", "continent");
    
                tx.success();
            } finally {
                database.shutdown();
            }
        }
    }

[Neo4j Debian Packages]: http://debian.neo4j.org/?_ga=1.110084293.1544558376.1474881791
[Post-installation tasks]: http://neo4j.com/docs/operations-manual/3.0/deployment/post-installation/
[neo4j-contrib_spatial]: https://github.com/neo4j-contrib/spatial