java - OrientDB 3.0.0 创建嵌入式给出 java.lang.NullPointerException

Question

我尝试创建一个嵌入式 OrientDB 并创建一些顶点，添加一些属性，...但是我在第一行中遇到空指针异常!

14

OrientDB orientdb = new OrientDB("embedded:./databases/", 
        OrientDBConfig.defaultConfig());
        orientdb.create("test", ODatabaseType.PLOCAL);

            try (ODatabaseSession dbSession = orientdb.open("test", "admin","admin");) {
                OClass person =  dbSession.createVertexClass("Person");
                OClass address = dbSession.createVertexClass("Address");

                person.createProperty("firstName", OType.STRING);
                person.createProperty("lastName", OType.STRING);

                dbSession.close();
            } 

            orientdb.close();

---

Exception in thread "main" java.lang.NullPointerException at com.orientechnologies.orient.core.Orient.onEmbeddedFactoryInit(Orient.java:929) at com.orientechnologies.orient.core.db.OrientDBEmbedded.(OrientDBEmbedded.java:63) at com.orientechnologies.orient.core.db.OrientDBInternal.embedded(OrientDBInternal.java:107) at com.orientechnologies.orient.core.db.OrientDB.(OrientDB.java:164) at com.orientechnologies.orient.core.db.OrientDB.(OrientDB.java:117) at org.apsolutions.orientdb.example.TestOrientDB.main(TestOrientDB.java:14)

Answer 1

我的错误，我正在使用 jdbc-all.jar 库，而我应该使用 orient-3.0.0 发行版的 lib 文件夹中的 jar 文件。感谢所有试图提供帮助的人。