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shangjinlieren_1 2016-07-07
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GoEasy Web实时推送工具，轻松实现实时消息推送。 Web页面订阅（约5行代码），服务器端推送（2行代码）就可以轻松实现，而且在高并发时消息推送稳定。 自己完全可以只花五分钟写出属于自己的第一个实时推送功能！感兴趣的朋友可以到他们官网上看一下。https://goeasy.io
slwsss 2015-12-08
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业余草 2015-12-08
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asp ，你多搜搜，asp 动态语言部分？接触不多
hhhh63 2014-08-18
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定时刷新也行，省资源
Cheris2014 2014-08-13
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java部分
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import javax.servlet.http.HttpServletRequest;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArraySet;
import org.apache.catalina.websocket.MessageInbound;
import org.apache.catalina.websocket.StreamInbound;
import org.apache.catalina.websocket.WsOutbound;
import org.apache.catalina.websocket.WebSocketServlet;
public class SocketServer extends WebSocketServlet {
private static final long serialVersionUID = 1L;
public final Set<ChatWebSocket> users = new CopyOnWriteArraySet<ChatWebSocket>();
public static int USERNUMBER = 1;
@Override
protected StreamInbound createWebSocketInbound(String arg0,
HttpServletRequest arg1) {
// TODO Auto-generated method stub
return new ChatWebSocket(users);
}
public class ChatWebSocket extends MessageInbound {
private String username;
private Set<ChatWebSocket> users = new CopyOnWriteArraySet<ChatWebSocket>();;
public ChatWebSocket() {
}
public ChatWebSocket(Set<ChatWebSocket> users) {
this.users = users;
}
@Override
protected void onTextMessage(CharBuffer message) throws IOException {
// 这里处理的是文本数据
}
public void onMessage(String data) {
String[] val1 = data.split("\\t");
if(val1[0].equals("NAME"))
{
String[] val2=val1[1].split("_");
for(ChatWebSocket user:users){
if (user.username.equals(val2[0])){
user.username=val2[1];
}
}
}
else if(val1[0].equals("MSG"))
{
String[] val2=val1[1].split("_");
for(ChatWebSocket user:users){
if (user.username.equals(val2[1])){
try {
CharBuffer temp=CharBuffer.wrap(data);
user.getWsOutbound().writeTextMessage(temp);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
else
{
System.out.println("ERROR");
}
}
@Override
protected void onOpen(WsOutbound outbound) {
// this.connection=connection;
this.username = "#" + String.valueOf(USERNUMBER);
USERNUMBER++;
try {
String message = "NAME" + "\t" + this.username;
CharBuffer buffer = CharBuffer.wrap(message);
this.getWsOutbound().writeTextMessage(buffer);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
users.add(this);
}
@Override
protected void onClose(int status) {
users.remove(this);
}
@Override
protected void onBinaryMessage(ByteBuffer arg0) throws IOException {
}
}
}
Cheris2014 2014-08-13
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程序代码
html部分
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript" src="js/socket.js"></script>
<title>无标题文档</title>
</head>
<script language="javascript">
</script>
<body>
<table>
<tr>
<td>Message</td>
<td><input type="text" id="message"></td>
</tr>
<tr>
<td>Name</td>
<td><input type="text" id="othername"></td>
</tr>
<tr>
<td><input id="sendbutton" type="button" value="send" onClick="click" disabled="true">
</input></td>
</tr>
</table>
<script>
</script>
</body>
</html>
js部分(关于jquery部分不进行讲解)
var username = window.prompt("输入你的名字:");
document.write("Welcome<p id=\"username\">"+username+"</p>");
if (!window.WebSocket && window.MozWebSocket)
window.WebSocket=window.MozWebSocket;
if (!window.WebSocket)
alert("No Support ");
var ws;
$(document).ready(function(){
$("#sendbutton").attr("disabled", false);
$("#sendbutton").click(sendMessage);
startWebSocket();
})
function sendMessage()
{
var othername=$("#othername").val();
var msg="MSG\t"+username+"_"+othername+"_"+$("#message").val();
send(msg);
}
function send(data)
{
console.log("Send:"+data);
ws.send(data);
}
function startWebSocket()
{
ws = new WebSocket("ws://" + location.host + "/WebSocket/SocketServer");
ws.onopen = function(){
console.log("success open");
$("#sendbutton").attr("disabled", false);
};
ws.onmessage = function(event)
{
console.log("RECEIVE:"+event.data);
handleData(event.data);
};
ws.onclose = function(event) {
console.log("Client notified socket has closed",event);
};
}
function handleData(data)
{
var vals=data.split("\t");
var msgType=vals[0];
switch(msgType)
{
case "NAME":
var msg=vals[1];
var mes="NAME"+"\t"+msg+"_"+ username;
send(mes);
break;
case "MSG":
var val2s=vals[1].split("_");
var from=val2s[0];
var message=val2s[2];
alert(from+":"+message);
break;
default:
break;
}
}
Cheris2014 2014-08-13
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html5利用websocket完成的推送功能
链接：http://www.alixixi.com/web/a/2014032492868.shtml
希望能帮到你！
业余草 2014-06-21
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websocket,你可以看一看的哦
liuxing19870629 2014-04-14
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不太明白你要的功能，不过你可以看下Web Workers是不是你需要的
