创建到guacd的WebSocket隧道失败：连接超时

我正在尝试使用此服务器进行测试，我的前端已启动并运行，配置如下：

this.manager=新的RemoteDesktopManager（隧道）

我的服务器也在运行，但当我运行jar时，我可以连接到guacd，我得到以下错误：

C:\guacamole-test-server>java -jar target/gts.jar --guacd-host 1.2.3.4 -- 
guacd-port 4822 --port 8080

2019-06-25 12:20:10,389 [INFO] org.eclipse.jetty.util.log - Logging 
initialized @200ms to 
org.eclipse.jetty.util.log.Slf4jLog
2019-06-25 12:20:10,507 [INFO] org.eclipse.jetty.server.Server - jetty- 
9.4.z-SNAPSHOT, build 
timestamp: 2017-11-21T16:27:37-05:00, git hash: 
82b8fb23f757335bb3329d540ce37a2a26
15f0a8
2019-06-25 12:20:10,541 [INFO] org.eclipse.jetty.server.session - 
DefaultSessionIdManager 
workerName=node0
2019-06-25 12:20:10,544 [INFO] org.eclipse.jetty.server.session - No 
SessionScavenger set, using 
defaults
2019-06-25 12:20:10,546 [INFO] org.eclipse.jetty.server.session - 
Scavenging every 600000ms
2019-06-25 12:20:10,718 [INFO] eu.jamiehall.gts.ws.WebSocketTunnelModule - 
Loading Jetty 9 
WebSocket support...
2019-06-25 12:20:10,804 [INFO] 
 org.eclipse.jetty.server.handler.ContextHandler - Started 
 o.e.j.s.ServletContextHandler@229f66ed{/,null,AVAILABLE}
 2019-06-25 12:20:11,106 [INFO] org.eclipse.jetty.server.AbstractConnector 
- Started 
 ServerConnector@2a5c8d3f{HTTP/1.1,[http/1.1]}{0.0.0.0:8080}
 2019-06-25 12:20:11,106 [INFO] org.eclipse.jetty.server.Server - Started 
@924ms
2019-06-25 12:20:19,119 [DEBUG] 
 org.apache.guacamole.net.InetGuacamoleSocket - Connecting to 
guacd at 1.2.3.4:4822.
2019-06-25 12:20:34,120 [ERROR] eu.jamiehall.gts.ws.WebSocketTunnelServlet 
 - Creation of 
  WebSocket tunnel to guacd failed: Connection timed out.
 2019-06-25 12:20:34,121 [DEBUG] 
 eu.jamiehall.gts.ws.WebSocketTunnelServlet 
 - Error connecting 
  WebSocket tunnel.
  org.apache.guacamole.GuacamoleUpstreamTimeoutException: Connection timed 
  out.
 at org.apache.guacamole.net.InetGuacamoleSocket.<init> 
(InetGuacamoleSocket.java:111)

C:\guacamole测试服务器>java-jar目标/gts.jar--guacd主机1.2.3.4--
guacd端口4822—端口8080
2019-06-25 12:20:10389[信息]org.eclipse.jetty.util.log-日志
在200ms时初始化为
org.eclipse.jetty.util.log.Slf4jLog
2019-06-25 12:20:10507[信息]org.eclipse.jetty.server.server-jetty-
9.4.z-快照，构建
时间戳：2017-11-21T16:27:37-05:00，git哈希：
82B8FB23F75735BB3329D540CE37A2A26
15f0a8
2019-06-25 12:20:10541[信息]org.eclipse.jetty.server.session-
DefaultSessiondManager
workerName=node0
2019-06-25 12:20:10544[信息]org.eclipse.jetty.server.session-否
SessionScavenger集，使用
默认值
2019-06-25 12:20:10546[信息]org.eclipse.jetty.server.session-
每600000ms扫气一次
2019-06-25 12:20:10718[信息]eu.jamiehall.gts.ws.websockettunelmodule-
装货码头9
WebSocket支持。。。
2019-06-25 12:20:10804[信息]
org.eclipse.jetty.server.handler.ContextHandler-已启动
o、 e.j.s。ServletContextHandler@229f66ed{/，空，可用}
2019-06-25 12:20:11106[信息]org.eclipse.jetty.server.AbstractConnector
-开始
ServerConnector@2a5c8d3f{HTTP/1.1[HTTP/1.1]}{0.0.0.0:8080}
2019-06-25 12:20:11106[信息]org.eclipse.jetty.server.server-已启动
@924ms
2019-06-25 12:20:19119[调试]
org.apache.guacamole.net.InetGuacamoleSocket-连接到
鳄梨酱，1.2.3.4:4822。
2019-06-25 12:20:34120[错误]eu.jamiehall.gts.ws.WebSocketTunnelServlet
-创造
到guacd的WebSocket隧道失败：连接超时。
2019-06-25 12:20:34121[调试]
eu.jamiehall.gts.ws.WebSocketTunnelServlet
-错误连接
WebSocket隧道。
org.apache.guacamole.GuacamoleUpstreamTimeoutException:连接已超时
出来
位于org.apache.guacamole.net.InetGuacamoleSocket。
（InetGuacamoleSocket.java:111）

你知道我做错了什么吗？多谢各位

C:\guacamole-test-server>java -jar target/gts.jar --guacd-host 1.2.3.4 -- 
guacd-port 4822 --port 8080

2019-06-25 12:20:10,389 [INFO] org.eclipse.jetty.util.log - Logging 
initialized @200ms to 
org.eclipse.jetty.util.log.Slf4jLog
2019-06-25 12:20:10,507 [INFO] org.eclipse.jetty.server.Server - jetty- 
9.4.z-SNAPSHOT, build 
timestamp: 2017-11-21T16:27:37-05:00, git hash: 
82b8fb23f757335bb3329d540ce37a2a26
15f0a8
2019-06-25 12:20:10,541 [INFO] org.eclipse.jetty.server.session - 
DefaultSessionIdManager 
workerName=node0
2019-06-25 12:20:10,544 [INFO] org.eclipse.jetty.server.session - No 
SessionScavenger set, using 
defaults
2019-06-25 12:20:10,546 [INFO] org.eclipse.jetty.server.session - 
Scavenging every 600000ms
2019-06-25 12:20:10,718 [INFO] eu.jamiehall.gts.ws.WebSocketTunnelModule - 
Loading Jetty 9 
WebSocket support...
2019-06-25 12:20:10,804 [INFO] 
 org.eclipse.jetty.server.handler.ContextHandler - Started 
 o.e.j.s.ServletContextHandler@229f66ed{/,null,AVAILABLE}
 2019-06-25 12:20:11,106 [INFO] org.eclipse.jetty.server.AbstractConnector 
- Started 
 ServerConnector@2a5c8d3f{HTTP/1.1,[http/1.1]}{0.0.0.0:8080}
 2019-06-25 12:20:11,106 [INFO] org.eclipse.jetty.server.Server - Started 
@924ms
2019-06-25 12:20:19,119 [DEBUG] 
 org.apache.guacamole.net.InetGuacamoleSocket - Connecting to 
guacd at 1.2.3.4:4822.
2019-06-25 12:20:34,120 [ERROR] eu.jamiehall.gts.ws.WebSocketTunnelServlet 
 - Creation of 
  WebSocket tunnel to guacd failed: Connection timed out.
 2019-06-25 12:20:34,121 [DEBUG] 
 eu.jamiehall.gts.ws.WebSocketTunnelServlet 
 - Error connecting 
  WebSocket tunnel.
  org.apache.guacamole.GuacamoleUpstreamTimeoutException: Connection timed 
  out.
 at org.apache.guacamole.net.InetGuacamoleSocket.<init> 
(InetGuacamoleSocket.java:111)