JAVA代码实现指定开始节点和结束节点中间经过的路径关系

Neo4jUtil.java

public void getRelationPathByCondition(String startNodeId,String startNodeLabel,String endNodeLabel,String endNodeId) {
//拼装开始节点的查询语句
String startNodeCql = String.format("match data=(:`%s`{id:'%s'})-[*]->", startNodeLabel, startNodeId);
 //拼装结束节点的查询语句
 String endNodeCql = String.format("(:`%s`{id:'%s'})  return data", endNodeLabel, endNodeId);
 //如果有中间路径还可以继续进行拼接
//最终组装好的查询语句
String cypherSql= startNodeCql.concat(endNodeCql);

 Result query = session.query(cypherSql, new HashMap<>(16));
 for (Map<String, Object> map : query.queryResults()) {
            InternalPath.SelfContainedSegment[] ps = (InternalPath.SelfContainedSegment[]) map.get("data");
            for (InternalPath.SelfContainedSegment p : ps) {
              
                //开始节点
                Node start = p.start();
                Map<String, Object> startMap = start.asMap();
                startMap.get("name");
                startMap.get("id");
               

                //结束节点
                Node end = p.end();
                Map<String, Object> endMap = end.asMap();
				endMap.get("name");
          		endMap.get("id") ;

                
                //关系
                Relationship relationship = p.relationship();
                Map<String, Object> relationshipMap = relationship.asMap();
                relationshipMap.get("name");
                //上面得到的节点的信息，按照自己的要求组装返回格式即可。
            }
        }


session.clear();

}