Neo4j螺栓驱动程序协议错误

Question

我得到以下错误，同时尝试neo4j螺栓驱动程序运行简单密码。知道出什么问题了吗？

    public void boltDriver() {
    Config noSSL = Config.build()
            .withEncryptionLevel(Config.EncryptionLevel.NONE).toConfig();
    Driver driver = GraphDatabase.driver("bolt://localhost:7474",
            AuthTokens.basic("neo4j", "neo4j1"), noSSL); // <password>

    try (Session session = driver.session()) {

        StatementResult result;

        String foafQuery = " MATCH (n) WHERE EXISTS(n.country) RETURN DISTINCT \"node\" as element, n.country AS country ";
        result = session.run(foafQuery, parameters("name", "Joe"));
        while (result.hasNext()) {
            Record next = result.next();
            System.out.println(next.get("element"));
            System.out.println(next.get("country"));
        }

    }

}

异常:线程“主”org.neo4j.driver.v1.exceptions.ClientException:协议错误中的异常，服务器建议的意外协议版本: 1213486160在org.neo4j.driver.internal.connector.socket.SocketClient.negotiateProtocol(SocketClient.java:198) at org.neo4j.driver.internal.connector.socket.SocketClient.start(SocketClient.java:73) at org.neo4j.driver.internal.connector.socket.SocketConnection.(SocketConnection.java:63) at org.neo4j.driver.internal.connector.socket.SocketConnector.connect(SocketConnector.java:52) at org.neo4j.driver.internal.pool.InternalConnectionPool$1org.neo4j.driver.internal.pool.InternalConnectionPool$1.allocate(InternalConnectionPool.java:180) at org.neo4j.driver.internal.pool.ThreadCachingPool.allocate(ThreadCachingPool.java:212) org.neo4j.driver.internal.pool.ThreadCachingPool.acquireFromGlobal(ThreadCachingPool.java:164) at org.neo4j.driver.internal.pool.ThreadCachingPool.acquire(ThreadCachingPool.java:118) at org.neo4j.driver.internal.pool.InternalConnectionPool.acquire(InternalConnectionPool. .allocate(InternalConnectionPool.java:191)org.neo4j.driver.internal.InternalDriver.session(InternalDriver.java:53) at Neo4jMain.boldDriver(Neo4jMain.java:55) at Neo4jMain.main(Neo4jMain.java:30)

Answer 1

你用错了端口号。7474默认用于http，而7687默认用于二进制螺栓协议。

Answer 2

一个重要的提示是，1213486160是一个32位大端数字的"HTTP“。