获取错误连接被拒绝：连接鳄梨酱驱动的应用程序

如何解决获取错误连接被拒绝：连接鳄梨酱驱动的应用程序

您好，我正在创建鳄梨酱驱动的应用程序并收到错误 java.net.ConnectException：连接被拒绝：连接。我尝试了 guacamole Web 应用程序文档中给出的代码获取 java.net.ConnectException：连接被拒绝：连接错误

服务代码

@WebServlet
public class HttpTunnelServletController extends GuacamoleHTTPTunnelServlet {

    private static final long serialVersionUID = 1L;
    public static SimpleGuacamoleTunnel tunnel = null;
    @Override
    protected GuacamoleTunnel doConnect(HttpServletRequest request)
        throws GuacamoleException {

        // Create our configuration
        GuacamoleConfiguration config = new GuacamoleConfiguration();
        config.setProtocol("rdp");
        config.setParameter("hostname","104.197.255.190:8080/guacamole");
        config.setParameter("port","3389");
        config.setParameter("password","guacamole");

        // Connect to guacd - everything is hard-coded here.
       GuacamoleSocket socket = new ConfiguredGuacamoleSocket(
                new InetGuacamoleSocket("localhost",4822),config
        );  
        // Return a new tunnel which uses the connected socket
        return new SimpleGuacamoleTunnel(socket);
    }
}

网页

<div class="col-sm-9 col-md-6 col-lg-8 col-xl-10">
        <span class="border">
            <form action="/GuacamoleHTTPTunnelServletController" >
              <!-- Guacamole -->
        <script type="text/javascript"
            src="guacamole-common-js/all.min.js"></script>

        <!-- display -->
        <div id="display"></div>




        <!-- Init -->
        <script type="text/javascript"> /* <![CDATA[ */

            // Get display div from document
            var display = document.getElementById("display");

            // Instantiate client,using an HTTP tunnel for communications.
            var guac = new Guacamole.Client(
                new Guacamole.HTTPTunnel("/tunnel")
            );

            // Add client to display div
            display.appendChild(guac.getdisplay().getElement());
            
            // Error handler
            guac.onerror = function(error) {
                alert(error);
            };

            // Connect
            guac.connect();

            // disconnect on close
            window.onunload = function() {
                guac.disconnect();
            }

        /* ]]> */ </script>  <!-- Guacamole -->
        <script type="text/javascript"
            src="guacamole-common-js/all.min.js"></script>

        <!-- display -->
        <div id="display"><a href="tunnel">URL</a></div>

        <!-- Init -->
        <script type="text/javascript"> /* <![CDATA[ */

            // Get display div from document
            var display = document.getElementById("display");

            // Instantiate client,using an HTTP tunnel for communications.
            var guac = new Guacamole.Client(
                new Guacamole.HTTPTunnel("tunnel")
            );

            // Add client to display div
            display.appendChild(guac.getdisplay().getElement());
            
            // Error handler
            guac.onerror = function(error) {
                alert(error);
            };

            // Connect
            guac.connect();

            // disconnect on close
            window.onunload = function() {
                guac.disconnect();
            }

        /* ]]> */ </script>
                
            </form>
        </span>
      
    </div>
  </div>
</div>
  </div>
   <!-- Init -->
        <script type="text/javascript"> /* <![CDATA[ */

            // Mouse
            var mouse = new Guacamole.Mouse(guac.getdisplay().getElement());

            mouse.onmousedown = 
            mouse.onmouseup   =
            mouse.onmousemove = function(mouseState) {
                guac.sendMouseState(mouseState);
            };

            // Keyboard
            var keyboard = new Guacamole.Keyboard(document);

            keyboard.onkeydown = function (keysym) {
                guac.sendKeyEvent(1,keysym);
            };

            keyboard.onkeyup = function (keysym) {
                guac.sendKeyEvent(0,keysym);
            };

        /* ]]> */ </script>

还需要做哪些配置。提前致谢

解决方法

Java 代码中存在配置问题。 GuacamoleConfiguration 对象应具有您要连接的目标机器（windows）的配置。

在您的情况下，您使用的是 RDP 协议，因此 hostname 应该包含您要连接的 Windows 机器的地址。当使用 username 协议时，目标 Windows 机器的 password 和 RDP 是必需的。如果您使用域用户，则还应指定 domain 参数。

我相信您的代码的基础来自 Guacamole 示例。此示例说明如何连接到不需要用户名的 VNC 服务器。一般来说，连接windows的基本配置应该是这样的：

    // Create our configuration
    GuacamoleConfiguration config = new GuacamoleConfiguration();
    config.setProtocol("rdp");
    config.setParameter("hostname","104.197.255.190"); // IP or fqdn of the windows machine,no URL
    config.setParameter("port","3389");
    config.setParameter("username","some-windows-user");
    config.setParameter("password","some-windows-user-password");
    config.setParameter("domain","windows-domain-if-exists");