package?com.web.demo;
?
import?java.util.HashMap;
import?java.util.Iterator;
import?java.util.Map;

import?javax.websocket.OnClose;
import?javax.websocket.onerror;
import?javax.websocket.OnMessage;
import?javax.websocket.OnOpen;
import?javax.websocket.Session;
import?javax.websocket.server.PathParam;
import?javax.websocket.server.ServerEndpoint;

@ServerEndpoint（“/websocket/{userId}“）
public?class?WebSocketTest?{
?
	private?static?Map?sessionMap=new?HashMap（）;//在線的客戶端session集合，只在第一次new的時(shí)候初始化。
??/**
???*?接收信息事件
???*?@param?message?客戶端發(fā)來(lái)的消息
???*?@param?session?當(dāng)前會(huì)話
???*/
??@OnMessage
??public?void?onMessage（String?messageSession?session@PathParam（value=“userId“）String?userId）throws?Exception?{
???
????try?{
????	Iterator?it?=?sessionMap.keySet（）.iterator（）;
????	//循環(huán)給每個(gè)客戶端發(fā)送信息
????	while（it.hasNext（））{
????		String?key?=?（String）?it.next（）;
????		Session?value?=?sessionMap.get（key）;
????		value.getBasicRemote（）.sendText（message）;
????	}
????	?System.out.println（“用戶“+userId+“說(shuō)：“+message+“。“）;
????	?System.out.println（“當(dāng)前在線人數(shù)：“+sessionMap.size（））;
	}?catch?（Exception?e）?{
		System.out.println（“接收消息事件異常!“）;
	}
??}
??
??/**
???*?打開(kāi)連接事件
?*?@throws?Exception?
???*/
??@OnOpen
??public?void?onOpen（Session?session@PathParam（value=“userId“）String?userId）?throws?Exception?{
????System.out.println（“打開(kāi)連接成功！“）;
????sessionMap.put（userId?session）;
????System.out.println（“用戶“+userId+“進(jìn)來(lái)了。。。“）;
????System.out.println（“當(dāng)前在線人數(shù)：“+sessionMap.size（））;
??}
?
??/**
???*?關(guān)閉連接事件
???*/
??@OnClose
??public?void?onClose（Session?session@PathParam（value=“userId“）String?userId）?{
????System.out.println（“關(guān)閉連接成功！“）;
????System.out.println（“用戶“+userId+“離開(kāi)了。。。“）;
????sessionMap.remove（userId）;
????System.out.println（“當(dāng)前在線人數(shù)：“+sessionMap.size（））;
??}
??
??/**
???*?錯(cuò)誤信息響應(yīng)事件
???*?@param?session
???*?@param?throwable
???*/
??@onerror
??public?void?onerror（Session?sessionThrowable?throwable@PathParam（value=“userId“）String?userId）?{
	????System.out.println（“異常：“+throwable.getMessage（））;
	????System.out.println（“用戶“+userId+“的連接出現(xiàn)了錯(cuò)誤。。?！埃?
	????System.out.println（“當(dāng)前在線人數(shù)：“+sessionMap.size（））;
??}
??
}

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2017-03-23?16:07??websocket-demo\
?????文件?????????943??2017-03-23?17:15??websocket-demo\.classpath
?????文件????????1413??2017-03-23?16:27??websocket-demo\.project
?????目錄???????????0??2017-03-23?16:07??websocket-demo\.settings\
?????文件?????????522??2016-01-08?09:46??websocket-demo\.settings\.jsdtscope
?????文件?????????364??2016-01-08?09:46??websocket-demo\.settings\org.eclipse.jdt.core.prefs
?????文件?????????501??2016-01-08?09:46??websocket-demo\.settings\org.eclipse.wst.common.component
?????文件?????????414??2016-01-08?09:46??websocket-demo\.settings\org.eclipse.wst.common.project.facet.core.xml
?????文件??????????49??2016-01-08?09:46??websocket-demo\.settings\org.eclipse.wst.jsdt.ui.superType.container
?????文件???????????6??2016-01-08?09:46??websocket-demo\.settings\org.eclipse.wst.jsdt.ui.superType.name
?????目錄???????????0??2017-03-23?16:41??websocket-demo\WebRoot\
?????目錄???????????0??2017-03-23?16:07??websocket-demo\WebRoot\meta-INF\
?????文件??????????39??2016-01-08?09:46??websocket-demo\WebRoot\meta-INF\MANIFEST.MF
?????目錄???????????0??2017-03-23?16:07??websocket-demo\WebRoot\WEB-INF\
?????目錄???????????0??2017-03-23?17:15??websocket-demo\WebRoot\WEB-INF\classes\
?????目錄???????????0??2017-03-23?17:15??websocket-demo\WebRoot\WEB-INF\classes\com\
?????目錄???????????0??2017-03-23?17:15??websocket-demo\WebRoot\WEB-INF\classes\com\web\
?????目錄???????????0??2017-03-23?17:15??websocket-demo\WebRoot\WEB-INF\classes\com\web\demo\
?????文件????????3658??2017-03-23?17:15??websocket-demo\WebRoot\WEB-INF\classes\com\web\demo\WebSocketTest.class
?????目錄???????????0??2017-03-23?16:16??websocket-demo\WebRoot\WEB-INF\lib\
?????文件???????36611??2017-03-23?16:16??websocket-demo\WebRoot\WEB-INF\lib\javax.websocket-api-1.0.jar
?????文件?????????463??2016-01-08?09:50??websocket-demo\WebRoot\WEB-INF\web.xml
?????文件????????1970??2017-03-23?18:13??websocket-demo\WebRoot\chat.html
?????文件????????1193??2017-03-23?16:44??websocket-demo\WebRoot\test.html
?????目錄???????????0??2017-03-23?16:07??websocket-demo\src\
?????目錄???????????0??2017-03-23?16:07??websocket-demo\src\com\
?????目錄???????????0??2017-03-23?16:07??websocket-demo\src\com\web\
?????目錄???????????0??2017-03-23?16:07??websocket-demo\src\com\web\demo\
?????文件????????2533??2017-03-23?16:16??websocket-demo\src\com\web\demo\WebSocketTest.java