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图数数据库引擎tinkerpop(3)使用java调用tinkerpop,存储到mysql数据库
2025-07-22 09:53  点击:0

1,图数数据库引擎TinkerPop

之前简单测试了下tinkerpop。
80snake/database/201506/406914.html
80snake/database/201506/407588.html
现在要把数据放到mysql数据库,这样更加接近线上系统使用,TinkerPop不解决数据存储的问题,需要使用扩展放到其他存储上面,通过blueprints 接口存储。
支持MongoDB,hadoop,Titan,Neo4j等存储数据。
同时也支持jpa,我使用的是hibernate实现的jpa。当然支持所有数据库了,这里使用mysql进行存储。
代码和pom 放到github上面了:(1个java类而已)

2,mysql数据库准备

使用mysql root进行操作:(创建数据库,并创建用户并赋予权限)

CREATE DATAbase tinkerpop DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci;GRANT ALL PRIVILEGES ON tinkerpop.* TO tinkerpop@"%" IDENTIFIED BY "tinkerpop";FLUSH PRIVILEGES;

配置pom.xml

    4.0.0    tinkerpop-demo    tinkerpop-demo    1.0                            wingnest-repo            wingnest repo            wingnest/mvn-repo/                                    org.apache.tinkerpop            gremlin-core            3.0.0.M9-incubating                            org.apache.tinkerpop            gremlin-driver            3.0.0.M9-incubating                            com.tinkerpop.blueprints            blueprints-core            2.6.0                            com.wingnest.blueprints            blueprints-jpa-graph            2.5.0_01                                    org.slf4j            slf4j-log4j12            1.7.5            test                            org.slf4j            slf4j-simple            1.6.1            test                            mysql            mysql-connector-java            5.1.35                            org.apache.derby            derby            10.11.1.1            test                            org.apache.derby            derbytools            10.11.1.1            test                            junit            junit            4.12                            org.hibernate            hibernate-core            4.3.10.Final                            org.hibernate            hibernate-entitymanager            4.3.10.Final                            org.apache.derby            derby            10.11.1.1                            src/main/java                                            src/main/resources                true                                                                            org.apache.maven.plugins                    maven-compiler-plugin                    2.5.1                                            1.7                        1.7                        UTF-8                                                                        org.apache.maven.plugins                    maven-resources-plugin                    2.4                                        

java代码:

package com.tinkerpop.demo;import com.tinkerpop.blueprints.Direction;import com.tinkerpop.blueprints.Edge;import com.tinkerpop.blueprints.Vertex;import com.wingnest.blueprints.impls.jpa.JpaGraph;import org.junit.After;import org.junit.Before;import org.junit.Test;import java.util.HashMap;import java.util.Map;public class TinkerPopMysqlDemo {    private JpaGraph jpaGraph = null;    @Before    public void setUp() {        //初始化jpa。保存到数据库中。使用hibernate 自动创建表结构。        //如果要使用mysql,这里修改属性。        Map<String, Object> props = new HashMap<String, Object>();        props.put("javax.persistence.jdbc.driver", "com.mysql.jdbc.Driver");        props.put("javax.persistence.jdbc.url", String.format("jdbc:mysql://xxx.xxx.xxx.xxx:3306/tinkerpop?characterEncoding=UTF-8"));        props.put("javax.persistence.jdbc.user", "tinkerpop");        props.put("javax.persistence.jdbc.password", "tinkerpop");        jpaGraph = new JpaGraph("HibernateUnit", props);    }    @After    public void tearDown() throws Exception {        //关闭        jpaGraph.shutdown();    }    @Test    public void testCreate() {        //创建张三数据        Vertex zhangsan = jpaGraph.addVertex(null);        zhangsan.setProperty("name", "zhangsan");        System.out.println("zhangsan:" + zhangsan.getId());        //创建李四数据        Vertex lisi = jpaGraph.addVertex(null);        lisi.setProperty("name", "lisi");        System.out.println("lisi:" + lisi.getId());        //创建王五数据        Vertex wangwu = jpaGraph.addVertex(null);        wangwu.setProperty("name", "wangwu");        System.out.println("wangwu:" + wangwu.getId());        //设置李四和王五朋友关系,friend是连接的名字,可以随意取。        Edge friend1 = jpaGraph.addEdge(null, zhangsan, lisi, "friend");        //设置王五和李四朋友关系        Edge friend2 = jpaGraph.addEdge(null, wangwu, lisi, "friend");        System.out.println("create finish");    }    @Test    public void testQuery() {        //查询全部数据。        queryAll();        queryZhansanFriends();        System.out.println("query finish");    }    private void queryAll() {        Iterable<Vertex> allVertex = jpaGraph.getVertices();        System.out.println("######################query all######################");        for (Vertex vertex : allVertex) {            System.out.print("name:" + vertex.getProperty("name"));            System.out.println(",id:" + vertex.getId());        }    }    private void queryZhansanFriends() {        Vertex zhangsan = jpaGraph.getVertex(1);        System.out.println("######################query zhangsan friends######################");        Iterable<Vertex> zhansanFriends = zhangsan.getVertices(Direction.OUT, "friend");        for (Vertex vertex : zhansanFriends) {            System.out.print("name:" + vertex.getProperty("name"));            System.out.println(",id:" + vertex.getId());        }    }    @Test    public void testDelete() {        Vertex lisi = jpaGraph.getVertex(2);        jpaGraph.removeVertex(lisi);        //删除之后,查询全部。        queryAll();        queryZhansanFriends();    }}
package com.tinkerpop.demo;import com.tinkerpop.blueprints.Direction;import com.tinkerpop.blueprints.Edge;import com.tinkerpop.blueprints.Vertex;import com.wingnest.blueprints.impls.jpa.JpaGraph;import org.junit.After;import org.junit.Before;import org.junit.Test;import java.util.HashMap;import java.util.Map;public class TinkerPopMysqlDemo {    private JpaGraph jpaGraph = null;    @Before    public void setUp() {        //初始化jpa。保存到数据库中。使用hibernate 自动创建表结构。        //如果要使用mysql,这里修改属性。        Map<String, Object> props = new HashMap<String, Object>();        props.put("javax.persistence.jdbc.driver", "com.mysql.jdbc.Driver");        props.put("javax.persistence.jdbc.url", String.format("jdbc:mysql://xxx.xxx.xxx.xxx:3306/tinkerpop?characterEncoding=UTF-8"));        props.put("javax.persistence.jdbc.user", "tinkerpop");        props.put("javax.persistence.jdbc.password", "tinkerpop");        jpaGraph = new JpaGraph("HibernateUnit", props);    }    @After    public void tearDown() throws Exception {        //关闭        jpaGraph.shutdown();    }    @Test    public void testCreate() {        //创建张三数据        Vertex zhangsan = jpaGraph.addVertex(null);        zhangsan.setProperty("name", "zhangsan");        System.out.println("zhangsan:" + zhangsan.getId());        //创建李四数据        Vertex lisi = jpaGraph.addVertex(null);        lisi.setProperty("name", "lisi");        System.out.println("lisi:" + lisi.getId());        //创建王五数据        Vertex wangwu = jpaGraph.addVertex(null);        wangwu.setProperty("name", "wangwu");        System.out.println("wangwu:" + wangwu.getId());        //设置李四和王五朋友关系,friend是连接的名字,可以随意取。        Edge friend1 = jpaGraph.addEdge(null, zhangsan, lisi, "friend");        //设置王五和李四朋友关系        Edge friend2 = jpaGraph.addEdge(null, wangwu, lisi, "friend");        System.out.println("create finish");    }    @Test    public void testQuery() {        //查询全部数据。        queryAll();        queryZhansanFriends();        System.out.println("query finish");    }    private void queryAll() {        Iterable<Vertex> allVertex = jpaGraph.getVertices();        System.out.println("######################query all######################");        for (Vertex vertex : allVertex) {            System.out.print("name:" + vertex.getProperty("name"));            System.out.println(",id:" + vertex.getId());        }    }    private void queryZhansanFriends() {        Vertex zhangsan = jpaGraph.getVertex(1);        System.out.println("######################query zhangsan friends######################");        Iterable<Vertex> zhansanFriends = zhangsan.getVertices(Direction.OUT, "friend");        for (Vertex vertex : zhansanFriends) {            System.out.print("name:" + vertex.getProperty("name"));            System.out.println(",id:" + vertex.getId());        }    }    @Test    public void testDelete() {        Vertex lisi = jpaGraph.getVertex(2);        jpaGraph.removeVertex(lisi);        //删除之后,查询全部。        queryAll();        queryZhansanFriends();    }}

3,运行结果

mysql> show databases;+--------------------+| Database           |+--------------------+| information_schema || tinkerpop          |+--------------------+2 rows in set (0.01 sec)mysql> use tinkerpopDatabase changedmysql> show tables;+---------------------+| Tables_in_tinkerpop |+---------------------+| ENTITY              || INDEX_base          |+---------------------+2 rows in set (0.00 sec)mysql> select * from ENTITY;+---------------+----+---------+---------+---------+-----------------+--------+------------+-------------------+-------------------+| DTYPE         | id | REMOVED | VERSION | KEYNAME | valueData       | LABEL  | element_id | incomingVertex_id | outgoingVertex_id |+---------------+----+---------+---------+---------+-----------------+--------+------------+-------------------+-------------------+| BpJpaVertex   |  1 |         |       0 | NULL    | NULL            | NULL   |       NULL |              NULL |              NULL || BpJpaVertex   |  2 |         |       0 | NULL    | NULL            | NULL   |       NULL |              NULL |              NULL || BpJpaVertex   |  3 |         |       0 | NULL    | NULL            | NULL   |       NULL |              NULL |              NULL || BpJpaEdge     |  4 |         |       1 | NULL    | NULL            | friend |       NULL |                 2 |                 1 || BpJpaEdge     |  5 |         |       1 | NULL    | NULL            | friend |       NULL |                 2 |                 3 || BpJpaProperty |  6 |         |       0 | name    | t lisi       | NULL   |          2 |              NULL |              NULL || BpJpaProperty |  7 |         |       0 | name    | t wangwu     | NULL   |          3 |              NULL |              NULL || BpJpaProperty |  8 |         |       0 | name    | tzhangsan   | NULL   |          1 |              NULL |              NULL |+---------------+----+---------+---------+---------+-----------------+--------+------------+-------------------+-------------------+8 rows in set (0.00 sec)mysql> select * from INDEX_base;Empty set (0.00 sec)

其中entry数据表结构:其中valueData是blob格式,id是自增的。
数据库分为3类,BpJpaVertex,BpJpaEdge,BpJpaProperty,分别是图对象,图关系,图的属性,但是这个存储到了一张表里面,感觉不科学啊,数据量会比较大呢。

CREATE TABLE `ENTITY` (  `DTYPE` varchar(31) NOT NULL,  `id` bigint(20) NOT NULL AUTO_INCREMENT,  `REMOVED` bit(1) DEFAULT NULL,  `VERSION` bigint(20) DEFAULT NULL,  `KEYNAME` varchar(255) DEFAULT NULL,  `valueData` tinyblob,  `LABEL` varchar(255) DEFAULT NULL,  `element_id` bigint(20) DEFAULT NULL,  `incomingVertex_id` bigint(20) DEFAULT NULL,  `outgoingVertex_id` bigint(20) DEFAULT NULL,  PRIMARY KEY (`id`),  KEY `UK_7hyan3asmdvrxrlywl7v0lj6e` (`REMOVED`),  KEY `UK_ejspyse8mcceolr4vps96aohp` (`KEYNAME`),  KEY `FK_wb8dqej10hriw3o6m72yj9p` (`element_id`),  KEY `FK_ay9plo3t1cprfwdwjvp6fdwi6` (`incomingVertex_id`),  KEY `FK_9r4w6h2jlb9a4e9pt3d95girc` (`outgoingVertex_id`),  ConSTRAINT `FK_9r4w6h2jlb9a4e9pt3d95girc` FOREIGN KEY (`outgoingVertex_id`) REFERENCES `ENTITY` (`id`),  ConSTRAINT `FK_ay9plo3t1cprfwdwjvp6fdwi6` FOREIGN KEY (`incomingVertex_id`) REFERENCES `ENTITY` (`id`),  ConSTRAINT `FK_wb8dqej10hriw3o6m72yj9p` FOREIGN KEY (`element_id`) REFERENCES `ENTITY` (`id`)) ENGINE=InnoDB AUTO_INCREMENT=9 DEFAULT CHARSET=utf8

Blueprints里面persistence.xml 配置文件:(在Blueprints的jar里面)
要修改参数都可以放到map里面。

        meta-INF/BpJpaEntity.normal.xml        meta-INF/BpJpaIndexbase.normal.xml        meta-INF/BpJpaElement.nq.normal.xml                meta-INF/BpJpaElement.hibernate.xml                    meta-INF/BpJpaVertex.nq.normal.xml        meta-INF/BpJpaVertex.normal.xml        meta-INF/BpJpaEdge.nq.normal.xml        meta-INF/BpJpaEdge.normal.xml        meta-INF/BpJpaProperty.normal.xml        meta-INF/BpJpaIndex.nq.normal.xml                              meta-INF/BpJpaIndex.hibernate.xml        meta-INF/BpJpaIndexItem.nq.normal.xml              meta-INF/BpJpaIndexItem.normal.xml        meta-INF/BpJpaKeyIndex.nq.normal.xml        meta-INF/BpJpaKeyIndex.normal.xml        meta-INF/BpJpaKeyIndexedProperty.nq.normal.xml        meta-INF/BpJpaKeyIndexedProperty.normal.xml        true        

4,总结

图数据库引擎,已经了解的差不多了,就是将图的数据变成一个更好理解的方式去操作。很直观,很直接,很方便。
默认TinkerPop使用内存存储数据,这个在线上系统肯定不太靠谱,于是研究大家最常用的mysql数据库,基本上可以线上小规模使用了,但是这个项目还在孵化中,稳定性还的检验下。相比neo4j是另外的一种选择。