我的 Java 项目创建了真实的顶点还是不真实的？

Question

我对Java和OrientDB的关系有点问题。

首先：我将我的 ETL 与在 OrientDB 中创建的数据库连接起来。

其次：我将我的 CSV 数据导入我的 Java 项目。

第三：我可以在我的 Java 项目中为 OrientDB 创建顶点和边。

第四：我尝试在数据库顶点和边中引入CSV数据

一切正常，但是当我在 OrientDB 中启动查询时，我看不到数据。

我的问题在哪里？谁能帮帮我？

提前致谢。

代码如下：

import com.tinkerpop.blueprints.Edge;
import com.tinkerpop.blueprints.TransactionalGraph;
import com.tinkerpop.blueprints.Vertex;
import com.tinkerpop.blueprints.impls.orient.OrientGraph;
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;

public class csvToOrientdb {

public static void main(String[] args) {
    csvToOrientdb cto = new csvToOrientdb();
    cto.run();
}

public void run() {        

    TransactionalGraph graph = new OrientGraph("plocal:mydb", "admin", "admin");

    BufferedReader br = null;
    String dato = "";
    String csvSplitBy = ";";
    int numDumb = 1;
    int keyNum = 1;

    Vertex Key, DeveloperEmail, CertificatePublicKey, CertificateFingerprint, DeveloperName, CertificateSubjectCommonName;
    Edge relacion1, relacion2, relacion3, relacion4, relacion5, relacion6, relacion7, relacion8, relacion9;

    try {
        for (int i = 0; i < numDumb; i++) {
            String csvFile = "C:\Users\DANI\Desktop\dumps\dump_" + i;

            try {

                br = new BufferedReader(new FileReader(csvFile));
                while ((dato = br.readLine()) != null) {

                    String[] datos = dato.split(csvSplitBy, 15);

                    Key = graph.addVertex(datos[0]);

                    Key.setProperty("sha256", datos[1]);
                    Key.setProperty("packageName", datos[2]);
                    Key.setProperty("origin", datos[3]);
                    Key.setProperty("versionCode", datos[4]);
                    Key.setProperty("certificateValidityGapRoundedYears", datos[10]);

                    DeveloperEmail = graph.addVertex(datos[5]);

                    DeveloperName = graph.addVertex(datos[6]);
                    DeveloperName.setProperty("developerAddress", datos[13]);
                    DeveloperName.setProperty("developerPrivacy", datos[14]);
                    DeveloperName.setProperty("developerWeb", datos[7]);

                    CertificatePublicKey = graph.addVertex(datos[8]);

                    CertificateFingerprint = graph.addVertex(datos[9]);

                    CertificateSubjectCommonName = graph.addVertex(datos[11]);
                    CertificateSubjectCommonName.setProperty("certificateIssuerCommonName", datos[12]);

                    relacion1 = graph.addEdge(null, CertificateFingerprint, DeveloperEmail, "used_by ");
                    relacion2 = graph.addEdge(null, DeveloperEmail, Key, "developer_of ");
                    relacion3 = graph.addEdge(null, CertificateFingerprint, Key, "sign ");
                    relacion4 = graph.addEdge(null, DeveloperName, DeveloperEmail, "has_email ");
                    relacion5 = graph.addEdge(null, CertificateSubjectCommonName, CertificateFingerprint, "in_cert ");
                    relacion6 = graph.addEdge(null, CertificateSubjectCommonName, CertificatePublicKey, "appears_with ");
                    relacion7 = graph.addEdge(null, CertificatePublicKey, CertificateFingerprint, "in_cert ");
                    relacion8 = graph.addEdge(null, DeveloperEmail, CertificateFingerprint, "sign_with ");
                    relacion9 = graph.addEdge(null, CertificatePublicKey, CertificateSubjectCommonName, "sign_in ");

                    keyNum++;

                    System.out.println("Dumb done numer : " + i + " keys: " + keyNum);

                    graph.commit();
                }
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
        graph.rollback();
    } finally {
        graph.shutdown();
}
}

}

Answer 1

我用这个 csv 试过你的代码

Class_0;one;two;three;four;Class_5;Class_6;seven;Class_8;Class_9;ten;Class_11;twelve;thirteen;fourteen

我可以看到数据了。

希望对您有所帮助。

我的 Java 项目创建了真实的顶点还是不真实的？

My Java project creates real vertex or are irreal?

java

orientdb