NebulaGraph3.6版本驱动在java web项目中的使用_java项目集成nebula-优快云博客

本文链接：https://blog.youkuaiyun.com/m0_38112475/article/details/132560258

本文介绍了如何在Maven项目中添加Nebula客户端依赖，编写驱动类以连接Nebula服务，并在API中调用查询数据的方法。

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1.maven中添加

        <dependency>
            <groupId>com.vesoft</groupId>
            <artifactId>client</artifactId>
            <version>3.6.0</version>
        </dependency>

2.编写驱动类

    public Object nebulaJdbcDriver(String execStr) {
        List<HostAddress> addresses = Collections.singletonList(new HostAddress("nebula的IP", 9669));
        String spaceName = "空间名";
        String user = "nebula";//账号
        String password = "nebula";//密码
        SessionPoolConfig sessionPoolConfig = new SessionPoolConfig(addresses, spaceName, user,password);
        SessionPool sessionPool = new SessionPool(sessionPoolConfig);
        if (!sessionPool.init()) {
            return "error";
        }
        ResultSet resultSet = null;
        try {
            resultSet = sessionPool.execute(execStr);
            System.out.println(resultSet.toString());
        } catch (IOErrorException | ClientServerIncompatibleException | AuthFailedException | BindSpaceFailedException e) {
            e.printStackTrace();
            sessionPool.close();
            System.exit(1);
        }
        sessionPool.close();
        return resultSet.toString();
    }

3.项目中调用

    @GetMapping("/getNebula")
    public Object getNebula() {
        String execStr = "match (v:player) return v limit 1;";
        Object resultSet = new NebulaDriver().nebulaJdbcDriver(execStr);
        return resultSet.toString();
    }