java - 从 Vertex 实例中获取 Json 格式的 String

Question

在具有 OrientDB 数据库的 Java 应用程序中，在我拥有 Vertex 对象之后，我需要将其属性提取到 String 对象中。该对象必须是 Json 格式。预期结果的一个例子是:

 {"@type":"d","@rid":"#13:1093","@version":1,"@class":"V_Notification","lastUpdateDate":"2016-07-20 16:45:31","lastUpdateUser":"#12:41","creationDate":"2016-07-20 16:45:31","creationUser":"#12:41","type":"user_added_to_share_made_upload","description":"user_added_to_share_made_upload","sphereId":"#16:18","out_E_NotificationUser":["#45:1091"],"deleted":false,"version":0,"isRead":false,"@fieldTypes":"lastUpdateDate=t,lastUpdateUser=x,creationDate=t,creationUser=x,out_E_NotificationUser=g"}

Answer 1

你可以使用

OrientVertex v=g.getVertex("#9:0");
ODocument d=v.getRecord();
String json=d.toJSON();

希望对你有帮助