我的代码在下面,根据文档,它应该给我节点值,但是它让我异常
Exception in thread "main" java.lang.ClassCastException: scala.collection.convert.Wrappers$SeqWrapper cannot be cast to org.neo4j.graphdb.Node
at com.neo4j.performance.FetchData.main(FetchData.java:32)

import org.neo4j.graphdb.Node;
import org.neo4j.graphdb.Result;
import org.neo4j.graphdb.Transaction;
import java.util.Iterator;
import org.neo4j.helpers.collection.IteratorUtil;
import com.neo4j.enitites.Global;
public class FetchData {
public static void main(String[] args) throws Exception
{
String nodeResult = null;
try ( Transaction ignored = Global.db.beginTx();
Result result = Global.db.execute( "MATCH path=()-[:route_1*]-() RETURN nodes(path) AS result" ) )
{
// START SNIPPET: items
Iterator<Node> n_column = result.columnAs( "result" );
for ( Node node : IteratorUtil.asIterable( n_column ) )
{
nodeResult = node + ": " + node.getProperty( "StationCode" );
}
// END SNIPPET: items
}
System.out.println(nodeResult);
}
}
我已经搜索了错误,但只有2或3个帖子也没有用。有没有人遇到过这个问题或者这个代码有问题。 感谢
答案 0 :(得分:0)
在事务try-with-resources块中使用此代码段:
for (Object cell : IteratorUtil.asIterable(result.columnAs("result"))) {
Iterable<Node> nodes = (Iterable<Node>) cell;
for (Node n : nodes) {
System.out.println(n);
}
}