Springboot guacamole的http连接和websocket连接

准备条件：

 guacamole server已经安装好

目标远程主机与server服务器可以通信

1、添加pom文件依赖

  
  
      org.apache.guacamole
      guacamole-common
      0.9.14
      compile
  
  
  
      org.springframework.boot
      spring-boot-starter-websocket
  

官方文档还引入了guacamole-common-js包，这个包其实是前端JavaScript的支持，我们可以手动下载，加入到前端的js库里

2、http连接

http controller

@WebServlet(urlPatterns = "/tunnel")
public class HttpTunnelServlet extends GuacamoleHTTPTunnelServlet {
    @Override
    protected GuacamoleTunnel doConnect(HttpServletRequest httpServletRequest) throws GuacamoleException {
        String hostname = "192.168.5.129"; //guacamole server地址
        int port = 4822; //guacamole server端口

        GuacamoleConfiguration configuration = new GuacamoleConfiguration();
        configuration.setProtocol("rdp"); // 远程连接协议
        configuration.setParameter("hostname", "192.168.5.128");// 连接目标主机的ip
        configuration.setParameter("port", "3389");// 目rdp协议端口

        GuacamoleSocket socket = new ConfiguredGuacamoleSocket(
                new InetGuacamoleSocket(hostname, port),
                configuration
        );

        GuacamoleTunnel tunnel = new SimpleGuacamoleTunnel(socket);

        return tunnel;
    }
}

2、websocket连接

websocket controller

@ServerEndpoint(value = "/webSocket", subprotocols = "guacamole")
@Component
public class WebSocketTunnel extends  GuacamoleWebSocketTunnelEndpoint{
    @Override
    protected GuacamoleTunnel createTunnel(Session session, EndpointConfig endpointConfig) throws GuacamoleException {

        String hostname = "192.168.5.129";
        int port = 4822;

        GuacamoleConfiguration configuration = new GuacamoleConfiguration();
        configuration.setProtocol("rdp");
        configuration.setParameter("hostname", "192.168.5.128");
        configuration.setParameter("port", "3389");
       
        GuacamoleSocket socket = new ConfiguredGuacamoleSocket(
                new InetGuacamoleSocket(hostname, port),
                configuration
        );

        GuacamoleTunnel tunnel = new SimpleGuacamoleTunnel(socket);
        return tunnel;
    }
}

websocket config

@Configuration
public class WebSocketConfig {

    @Bean
     public ServerEndpointExporter serverEndpointExporter() {
         return new ServerEndpointExporter();
     }
}

websocket 还需要在启动类上加入@ServletComponentScan注解，启动器启动时，扫描本目录以及子目录带有的webservlet注解

@SpringBootApplication
@ServletComponentScan //启动器启动时，扫描本目录以及子目录带有的webservlet注解
public class GuacamoleApplication {

    public static void main(String[] args) {
        SpringApplication.run(GuacamoleApplication.class, args);
    }

}

3、前端展示页面

前端展示页面可以参考官方的demo，我的demo和他基本一致，只是把需要的js包手动打包了过来，修改部分js

    // Instantiate client, using an HTTP tunnel for communications.
            var guac = new Guacamole.Client(
                // new Guacamole.HTTPTunnel("/tunnel") // http 连接时开启
                new Guacamole.WebSocketTunnel("/webSocket") // websocket连接时开启
            );

4、项目目录结构

5、补充说明

如果存在拒绝连接的情况，可以是用telnet 查看是否可以访问server端的端口

如果4822端口监听的是127.0.0.1本地端口的话，远程ip将无法访问到server

这时修改server端的guacd.conf配置文件，默认在/etc/guacamole 文件夹下,如果没有此文件，就新建这个文件，在里面添加或修改配置，把监听的ip改为0.0.0.0，这样端口就可以监听所有的ip地址