Neo4j远程连接服务器

客官°小女子只卖身不卖艺 2024-04-06 10:23 65阅读 0赞

在Neo4j全栈书中给了个例子，执行时报异常：  
ClientException: SSL Connection terminated while receiving data neo4j  
用tcpdump命令查看接口消息，因为bolt是二进制报文，所以没有明文消息

在官网Java Developer页面：  
https://neo4j.com/developer/java/\#\_the\_example\_project  
看到一个例子，和maven版本，发现Neo4j全栈用的是比较老的版本，所以替换成新版本：

<dependency>
                <groupId>org.neo4j.driver</groupId>
                <artifactId>neo4j-java-driver</artifactId>
                <version>4.4.9</version>
            </dependency>

因为Neo4j版本是4，所以Neo4j API的版本也需要是4

import org.neo4j.driver.*;
    
    import java.util.Map;
    import java.util.Set;
    
    public class ConnectServer {
        
        public static void main( final String[] args ) throws Exception{
        
            Driver driver = GraphDatabase.driver("bolt://172.21.9.22:7687", AuthTokens.basic("neo4j", "passw0rd"));
            Session session = driver.session();
    
            session.run( "CREATE (u:User {name:'one', email:'one@com.cn'})" );
    
            Result result = session.run("MATCH (u) WHERE u.name = 'one' RETURN u");
            while ( result.hasNext() )
            {
        
                Record record = result.next();
                Map<String, Object> map = record.get("u").asMap();
                Set<Map.Entry<String, Object>> set = map.entrySet();
                for(Map.Entry one : set){
        
                    System.out.print(one.getKey() + "=" + one.getValue() + ";");
                }
                System.out.println();
            }
    
            session.close();
            driver.close();
        }
    }