基於spring-boot-starter-data-neo4j操作Neo4j數據庫

我翻閱了好多基於spring-boot-starter-data-neo4j來操作neorj數據庫的博客，總之沒有找到我想要的答案，現在按照自己的思路搞出來了，特分享下：

思路：

　　1.我想讓不同類型的節點都可以用同一種關系，通過屬性來區分關系類別

　　　　 比如 唐僧和孫悟空是師徒關系，孫悟空擁有金箍棒 人物有：唐僧、孫悟空；武器有：金箍棒

 

 

      2.不同的節點都具有共同的屬性，可以方便進行關系的CRUD

 

進入正題：

1.包結構如圖：

 

 

 

 

 3.pom文件：

<?xml version="1.0" encoding="UTF-8"?>
<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>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.2.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.ikcai</groupId>
    <artifactId>enginegraph</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>EngineGraph</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-neo4j</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!-- add this dependency if you want to use the embedded driver -->
        <dependency>
            <groupId>org.neo4j</groupId>
            <artifactId>neo4j-ogm-embedded-driver</artifactId>
        </dependency>

        <!-- add this dependency if you want to use the HTTP driver -->
        <dependency>
            <groupId>org.neo4j</groupId>
            <artifactId>neo4j-ogm-http-driver</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

4.配置文件：GraphDBConfiguration

package com.ikcai.enginegraph.config;

/**
 * @類功能說明: neo4j配置類
 * @創建人: 趙力
 * @創建時間: 2019-01-22 11:56
 */

import org.springframework.boot.autoconfigure.domain.EntityScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.neo4j.repository.config.EnableNeo4jRepositories;
import org.springframework.transaction.annotation.EnableTransactionManagement;

@Configuration
@EnableNeo4jRepositories(basePackages = "com.ikcai.enginegraph.respository")
@EntityScan(basePackages = "com.ikcai.enginegraph.domain")
@EnableTransactionManagement
public class GraphDBConfiguration{
}

5.關系實體對象 BaseRelationship

package com.ikcai.enginegraph.domain.base;

import com.fasterxml.jackson.annotation.JsonIgnore;
import com.ikcai.enginegraph.constant.NodeType;
import com.ikcai.enginegraph.domain.base.abs.AllBaseEntity;
import org.neo4j.ogm.annotation.EndNode;
import org.neo4j.ogm.annotation.Property;
import org.neo4j.ogm.annotation.RelationshipEntity;
import org.neo4j.ogm.annotation.StartNode;

import java.time.LocalDateTime;

/**
 * @類功能說明: 關系實體對象
 * @創建人: 趙力
 * @創建時間: 2019-01-23 10:58
 */
@RelationshipEntity(type=NodeType.REF)
public class BaseRelationship<S extends BaseNode, E extends BaseNode> extends AllBaseEntity {

    @Property
    private String name; //關系名稱

    @Property
    private String createTime; //創建時間

    @JsonIgnore
    @StartNode
    private S start;

    @JsonIgnore
    @EndNode
    private E end;

    public BaseRelationship(){
    }

    public BaseRelationship(String name,S start,E end){
        this.name =name;
        this.createTime=LocalDateTime.now().toString();
        this.start=start;
        this.end=end;
    }

    @Override
    public String toString() {
        return "BaseRelationship{" +
                "name='" + name + '\'' +
                ", createTime='" + createTime + '\'' +
                ", start=" + start +
                ", end=" + end +
                '}';
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getCreateTime() {
        return createTime;
    }

    public void setCreateTime(String createTime) {
        this.createTime = createTime;
    }

    public S getStart() {
        return start;
    }

    public void setStart(S start) {
        this.start = start;
    }

    public E getEnd() {
        return end;
    }

    public void setEnd(E end) {
        this.end = end;
    }
}

6.基礎節點對象 BaseNode

package com.ikcai.enginegraph.domain.base;

import com.ikcai.enginegraph.constant.NodeType;
import com.ikcai.enginegraph.domain.base.abs.AllBaseEntity;
import org.neo4j.ogm.annotation.Relationship;

import java.util.Set;

/**
 * @類功能說明: 基礎節點對象
 * @創建人: 趙力
 * @創建時間: 2019-01-23 10:58
 */
public class BaseNode extends AllBaseEntity {

    private String name; //名稱

    @Relationship(type=NodeType.REF)
    private Set<BaseRelationship> relationships; //關系列表

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Set<BaseRelationship> getRelationships() {
        return relationships;
    }

    public void setRelationships(Set<BaseRelationship> relationships) {
        this.relationships = relationships;
    }
}

7.具體代碼位置：https://gitee.com/mailzhaoli/enginegraph/tree/master

 

8.測試：

　　8.1添加任務關系：

 

　　8.2添加人物武器關系