(网页)websocket例子 

转载自博客园张果
package action;

import javax.websocket.CloseReason;
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;

//ws://127.0.0.1:8087/Demo1/ws/张三
@ServerEndpoint("/ws/{user}")
public class WSServer {
    private String currentUser;
    
    //连接打开时执行
    @OnOpen
    public void onOpen(@PathParam("user") String user, Session session) {
        currentUser = user;
        System.out.println("Connected ... " + session.getId());
    }

    //收到消息时执行
    @OnMessage
    public String onMessage(String message, Session session) {
        System.out.println(currentUser + "：" + message);
        return currentUser + "：" + message;
    }

    //连接关闭时执行
    @OnClose
    public void onClose(Session session, CloseReason closeReason) {
        System.out.println(String.format("Session %s closed because of %s", session.getId(), closeReason));
    }

    //连接错误时执行
    @OnError
    public void onError(Throwable t) {
        t.printStackTrace();
    }
}
<!DOCTYPE html>
<html>

    <head>
        <meta name="viewport" content="width=device-width" />
        <meta charset="UTF-8"/>
        <title>WebSocket客户端</title>
    </head>

    <body>
        <div>
            <input type="button" id="btnConnection" value="连接" />
            <input type="button" id="btnClose" value="关闭" />
            <input type="button" id="btnSend" value="发送" />
        </div>
        <script src="js/jquery-1.11.1.min.js" type="text/javascript" charset="utf-8"></script>
        <script type="text/javascript">
            $(function() {
                var socket;
                if(typeof(WebSocket) == "undefined") {
                    alert("您的浏览器不支持WebSocket");
                    return;
                }

                $("#btnConnection").click(function() {
                    //实现化WebSocket对象，指定要连接的服务器地址与端口
                    socket = new WebSocket("ws://127.0.0.1:8087/WebSocketServer/ws/张三");
                    //打开事件
                    socket.onopen = function() {
                        alert("Socket 已打开");
                        //socket.send("这是来自客户端的消息" + location.href + new Date());
                    };
                    //获得消息事件
                    socket.onmessage = function(msg) {
                        alert(msg.data);
                    };
                    //关闭事件
                    socket.onclose = function() {
                        alert("Socket已关闭");
                    };
                    //发生了错误事件
                    socket.onerror = function() {
                        alert("发生了错误");
                    }
                });

                $("#btnSend").click(function() {
                    socket.send("这是来自客户端的消息" + location.href + new Date());
                });

                $("#btnClose").click(function() {
                    socket.close();
                });
            });
        </script>
    </body>

</html>

原文地址:http://www.cnblogs.com/best/p/5695570.html

 

posted on 2017-12-27 18:39  六一儿童节  阅读(174)  评论(0)    收藏  举报

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