我为GCM开发了一个服务器端，接受来自Android的上游 - ＆gt; GCM - ＆gt;基于此Project的服务器，并将来自我的服务器tog com的消息发送到android。 （我使用Smack341.jar，发送和接收而不使用“chat”对象我通过自定义函数直接发送到GCM，这些函数从My Map＆lt;＆gt;创建JSON消息） 我修改了很多东西： 1.我的消息不是平面文本，而是包含15个字段的MAP。 2.没有直接连接到xmpp，所有通信都是通过GCM服务器完成的。 3.my Server获取目标regID（我的一个消息字段）并将消息发送到该RegId。 4.我添加了Filter类，读取字段调用（M_type =消息类型）包含我自己的类型（不是xmpp类型），即在线状态类型键入类型，stoptyping类型getFriendsList类型等...服务器根据这些类型行为：< / p>
switch ( msg.getPayload().get(Constants.TYPECLM)) {
case Constants.GETFRIENDS: //get friends list...
filter.Sendfriebdlist(msg.getPayload(),ccsClient);
break;
case Constants.ADDFRIEND:
String Toregid=msg.getPayload().get(Constants.TO_CLM);
filter.HandleFriendReq(msg.getPayload(),msg,ccsClient,Toregid);
break;
case Constants.ADDFRIENDRESPOND:
filter.HandleAddFriendResond(msg, ccsClient, msg.getPayload().get(Constants.TO_CLM));
break;
case "ACKBACK":
filter.HandleAckfromU2U(ccsClient, msg.getPayload(),filter.key2reg(msg.getPayload().get(Constants.TO_CLM)));
break;
case "text":
filter.HandleMsg(msg.getPayload(),msg,ccsClient,filter.key2reg(TorDevice));
SendAckBack(msg.getFrom(),ccsClient,msg.getPayload().get(Constants.MESSAGE_ID_CLM));
break;
case "IMAGE":
msg.getPayload().put(Constants.TO_CLM,filter.key2reg(msg.getPayload().get(Constants.TO_CLM)));
String url = msg.getPayload().get(Constants.URLCLM);
url ="http:/"+"/"+ url;
url=url.replace("\\","/");
System.out.println("image url = " +url);
msg.getPayload().put(Constants.URLCLM,url);
SendAckBack(msg.getFrom(),ccsClient,msg.getPayload().get(Constants.MESSAGE_ID_CLM));
filter.HandleMsg(msg.getPayload(),msg,ccsClient,filter.key2reg(TorDevice));
break;
case "PROFILE":
msg.getPayload().put(Constants.TO_CLM,filter.key2reg(msg.getPayload().get(Constants.TO_CLM)));
String urlP = msg.getPayload().get(Constants.URLCLM);
urlP ="http:/"+"/"+urlP;
urlP=urlP.replace("\\","/");
System.out.println(" URLCLM= "+msg.getPayload().get(Constants.URLCLM));
msg.getPayload().put(Constants.URLCLM,urlP);
filter.updatePhoto( msg.getPayload(),ccsClient,msg);
break;
case "VIDEO":
msg.getPayload().put(Constants.TO_CLM,filter.key2reg(msg.getPayload().get(Constants.TO_CLM)));
String url2 = msg.getPayload().get(Constants.URLCLM);
url2 ="http:/"+"/"+ url2;
url2=url2.replace("\\","/");
System.out.println("video url = " +url2);
msg.getPayload().put(Constants.URLCLM,url2);
SendAckBack(msg.getFrom(),ccsClient,msg.getPayload().get(Constants.MESSAGE_ID_CLM));
filter.HandleMsg(msg.getPayload(),msg,ccsClient,filter.key2reg(TorDevice));
break;
case "AUDIO":
msg.getPayload().put(Constants.TO_CLM,filter.key2reg(msg.getPayload().get(Constants.TO_CLM)));
String url3 = msg.getPayload().get(Constants.URLCLM);
url3 ="http:/"+"/"+ url3;
url3=url3.replace("\\","/");
msg.getPayload().put(Constants.URLCLM,url3);
SendAckBack(msg.getFrom(),ccsClient,msg.getPayload().get(Constants.MESSAGE_ID_CLM));
filter.HandleMsg(msg.getPayload(),msg,ccsClient,filter.key2reg(TorDevice));
break;
case "BLOCK":
filter.block(msg.getPayload().get(Constants.FROMCLM),msg.getPayload().get(Constants.TO_CLM),ccsClient);
break;
case "UNBLOCK":
filter.unblock(msg.getPayload().get(Constants.FROMCLM),msg.getPayload().get(Constants.TO_CLM),ccsClient);
break;
case "REMOVE":
filter.removef(msg.getPayload().get(Constants.FROMCLM),msg.getPayload().get(Constants.TO_CLM),ccsClient);
break;
case "typing":
System.err.println("Typing");
//filter.sendtyping(msg.getPayload().get(filter.key2reg(Constants.TO_CLM)),filter.key2reg(msg.getPayload().get(Constants.TO_CLM)),ccsClient,msg.getPayload());
break;
case "stoptyping":
// filter.sendStoptyping(filter.key2reg(msg.getPayload().get(Constants.TO_CLM)),filter.key2reg(msg.getPayload().get(Constants.TO_CLM)),ccsClient,msg.getPayload());
System.err.println("Stop Typing");
break;
问题：1 我认为xmpp服务器有一个用户（GCM），他“不知道我有几百个!!
但是当用户开始互动（通过他们的Android设备聊天）并且上传的消息数量增加时，我的内存出错了...
java.lang.OutOfMemoryError: GC overhead limit exceeded
OR
java.lang.OutOfMemoryError: Java heap space
有时：
Exception in thread "Smack Packet reader(0)" java.lang.OutOfMemoryError Java heap space
我的服务器设备有4GB物理RAM。我在3gb上运行我的服务器作为最大内存大小：
java -Xms1024m -Xmx3072m -jar newsrvrSodfa.jar
我不知道为什么我会出现内存错误。可能数据类型只是MAP
问题：2 xmpp花了大约10-20秒（interceptPacket）!!
我希望我成功地描述了我的问题。问我有什么不清楚。
更新 1.服务器本身在Windows Server 2008 R2标准上 2.错误输出：
at javax.swing.text.GapContent.getChars(Unknown Source)
at javax.swing.text.AbstractDocument.getText(Unknown Source)
at javax.swing.text.GlyphView.getText(Unknown Source)
at javax.swing.text.GlyphView.getBreakSpot(Unknown Source)
at javax.swing.text.GlyphView.getMinimumSpan(Unknown Source)
at javax.swing.text.ParagraphView.calculateMinorAxisRequirements(Unknown Source)
at javax.swing.plaf.basic.BasicTextAreaUI$PlainParagraph.calculateMinorAxisRequirements(Unknown Source)
at javax.swing.text.BoxView.checkRequests(Unknown Source)
at javax.swing.text.BoxView.getMinimumSpan(Unknown Source)
at javax.swing.text.BoxView.calculateMinorAxisRequirements(Unknown Source)
at javax.swing.text.BoxView.checkRequests(Unknown Source)
at javax.swing.text.BoxView.setSpanOnAxis(Unknown Source)
at javax.swing.text.BoxView.layout(Unknown Source)
at javax.swing.text.BoxView.setSize(Unknown Source)
at javax.swing.plaf.basic.BasicTextUI$RootView.setSize(Unknown Source)
at javax.swing.plaf.basic.BasicTextUI.getPreferredSize(Unknown Source)
at javax.swing.plaf.basic.BasicTextAreaUI.getPreferredSize(Unknown Source)
at javax.swing.JComponent.getPreferredSize(Unknown Source)
at javax.swing.JTextArea.getPreferredSize(Unknown Source)
at javax.swing.ScrollPaneLayout.layoutContainer(Unknown Source)
at java.awt.Container.layout(Unknown Source)
at java.awt.Container.doLayout(Unknown Source)
at java.awt.Container.validateTree(Unknown Source)
at java.awt.Container.validate(Unknown Source)
at javax.swing.RepaintManager$3.run(Unknown Source)
at javax.swing.RepaintManager$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at javax.swing.RepaintManager.validateInvalidComponents(Unknown Source)
at javax.swing.RepaintManager$ProcessingRunnable.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
线程“AWT-EventQueue-0”中的异常java.lang.OutOfMemoryError：超出GC开销限制 线程“AWT-EventQueue-0”中的异常java.lang.OutOfMemoryError：Java堆空间 线程“AWT-EventQueue-0”中的异常java.lang.OutOfMemoryError：Java堆空间 线程“AWT-EventQueue-0”中的异常java.lang.OutOfMemoryError：超出GC开销限制 线程“AWT-EventQueue-0”中的异常java.lang.OutOfMemoryError：Java堆空间 线程“AWT-EventQueue-0”中的异常java.lang.OutOfMemoryError：超出GC开销限制 线程“AWT-EventQueue-0”中的异常java.lang.OutOfMemoryError：Java堆空间 线程“AWT-EventQueue-0”中的异常java.lang.OutOfMemoryError：Java堆空间