dosubot[bot] commented on issue #2539:
URL:
https://github.com/apache/incubator-hugegraph/issues/2539#issuecomment-2134472622
<!-- Answer -->
要根据点ID同时查到点的邻边和另一端顶点的属性，可以使用HugeGraph工具链中的`HugeVertex`类提供的`edges`和`vertices`方法。以下是一个示例代码：
```java
import org.apache.hugegraph.structure.HugeEdge;
import org.apache.hugegraph.structure.HugeVertex;
import org.apache.tinkerpop.gremlin.structure.Direction;
import org.apache.tinkerpop.gremlin.structure.Vertex;
import org.apache.tinkerpop.gremlin.structure.Edge;
import org.apache.tinkerpop.gremlin.structure.Property;
import java.util.Iterator;
public class HugeGraphExample {
public static void main(String[] args) {
// 假设你已经有一个HugeGraph实例和一个点ID
HugeGraph graph = ExampleUtil.loadGraph();
String vertexId = "your-vertex-id";
// 根据点ID获取点
HugeVertex vertex = (HugeVertex)
graph.traversal().V(vertexId).next();
// 获取与该点相连的边
Iterator<Edge> edges = vertex.edges(Direction.BOTH);
while (edges.hasNext()) {
HugeEdge edge = (HugeEdge) edges.next();
// 获取边的属性
Iterator<Property<Object>> edgeProperties = edge.properties();
while (edgeProperties.hasNext()) {
Property<Object> property = edgeProperties.next();
System.out.println("Edge Property: " + property.key() + " =
" + property.value());
}
// 获取相连的顶点
Iterator<Vertex> connectedVertices =
edge.vertices(Direction.BOTH);
while (connectedVertices.hasNext()) {
HugeVertex connectedVertex = (HugeVertex)
connectedVertices.next();
// 获取相连顶点的属性
Iterator<Property<Object>> vertexProperties =
connectedVertex.properties();
while (vertexProperties.hasNext()) {
Property<Object> property = vertexProperties.next();
System.out.println("Vertex Property: " + property.key()
+ " = " + property.value());
}
}
}
graph.close();
HugeFactory.shutdown(30L);
}
}
```
在这个示例中，`ExampleUtil.loadGraph()`方法用于加载`HugeGraph`实例。代码通过点ID获取点，遍历与该点相连的边，并获取边和相连顶点的属性。请确保将`"your-vertex-id"`替换为你要查询的实际点ID。`HugeVertex`类中的`edges`和`vertices`方法用于获取边和相连顶点<sup>[[1]](https://github.com/apache/incubator-hugegraph/blob/master/hugegraph-server/hugegraph-core/src/main/java/org/apache/hugegraph/structure/HugeEdge.java)</sup><sup>[[2]](https://github.com/apache/incubator-hugegraph/blob/master/hugegraph-server/hugegraph-example/src/main/java/org/apache/hugegraph/example/Example1.java)</sup><sup>[[3]](https://github.com/apache/incubator-hugegraph/blob/master/hugegraph-server/hugegraph-core/src/main/java/org/apache/hugegraph/structure/HugeVertex.java)</sup><sup>[[4]](https://github.com/apache/incubator-hugegraph-doc/blob/master/content/en/docs/language/hugegraph-example.md)</sup>。
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