openfire+smack实现聊天室功能MultiUserChat.isServiceEnabled问题

[wangyulonglg]

最近在研究openfire+smack实现的web聊天功能，今天做到聊天室的时候从网上找到一些资料，拷贝过来一段进行验证，结果报错了。代码如下：

MultiUserChat muc = new MultiUserChat(xcon, "room1@conference.127.0.0.1");
		try {
			muc.join("喝醉的毛毛虫", "room1");
		} catch (XMPPException e1) {
			e1.printStackTrace();
		}
		boolean supports = MultiUserChat.isServiceEnabled(xcon, xcon.getUser());
		// 获取某用户所加入的聊天室
		if (supports) {
			Iterator<String> joinedRooms = MultiUserChat.getJoinedRooms(xcon, xcon.getUser());
			while (joinedRooms.hasNext()) {
				System.out.println("user3 has joined Room " + joinedRooms.next());
			}
		}

xcon是一个XMPPConnection连接，在执行MultiUserChat.isServiceEnabled()方法时报错。

service-unavailable(503)
	at org.jivesoftware.smackx.ServiceDiscoveryManager.discoverInfo(ServiceDiscoveryManager.java:448)
	at org.jivesoftware.smackx.ServiceDiscoveryManager.discoverInfo(ServiceDiscoveryManager.java:414)
	at org.jivesoftware.smackx.muc.MultiUserChat.isServiceEnabled(MultiUserChat.java:171)
	at com.smack.controller.SmackServlet.queryFriends(SmackServlet.java:80)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215)
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:685)
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:919)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:851)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:953)
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:855)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:829)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)

	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:745)

求大神指导，有遇到类似的问题的吗？

[littlebrain4solving]

单步调试的看看,Openfire里面相应的Conference也要添加会议!

[wangyulonglg]

引用 1 楼 littlebrain4solving 的回复:

单步调试的看看,Openfire里面相应的Conference也要添加会议!

你好，conference已经创建了一个聊天室room1了，还是有这个问题。xcon.getUser()，包含资源名就会出现这个错误，如果不加资源就不报错，不过isServiceEnabled就反回false了。

[littlebrain4solving]

引用 2 楼 wangyulonglg 的回复:

引用 1 楼 littlebrain4solving 的回复:

单步调试的看看,Openfire里面相应的Conference也要添加会议!

你好，conference已经创建了一个聊天室room1了，还是有这个问题。xcon.getUser()，包含资源名就会出现这个错误，如果不加资源就不报错，不过isServiceEnabled就反回false了。

看看再调试看看;这个属于比较细节的方面了。

[littlebrain4solving]

实在没法你把Spark源代码拿下来看。

[wangyulonglg]

引用 4 楼 littlebrain4solving 的回复:

实在没法你把Spark源代码拿下来看。

这两天测试发现注释掉下面这句就不会报service-unavailable(503)： connectionConfig.setSendPresence(false);// false 不要告诉服务器自己的状态 之前从网上看的，如果要读取离线消息，登录服务器后需要加上上面这句，不告诉服务器自己已登录，等把离线消息收取下来再显示登录状态。 现在怀疑是否不告诉服务器状态就执行其他操作，服务器就以为还未连接，所以返回服务不可用？