In the article Java Socket Chat room programming (i) the use of socket to implement chat message push we talked about how to use the socket to allow the server and the client to pass messages between the message to achieve the purpose of the push message, and then I will write out how to let the server establish client and client communication.
In fact, it is to
=screen.availheight;}
This code first opens a Howtodo window with no status bar, scroll bar, adjustable size! Then move to the upper-left corner of the screen and zoom to the allowed screen size.
Online number
I based on the online number of NetEase chat room to display the current number of online, the code explained
ASP. NET uses simple chat room programs written by applications and session objects, and simple session chat rooms
ASP. Net has two important objects: application Object and session object.
Application: the object that records Application parameters. This object is used to share Application-level information.
Session: record the variable objects on the browser, u
Presence.type:Available--(default) User idle stateUnavailable--users don't have time to read the newsSubscribe--Request to subscribe to others, that is, request to add each other as friendsSubscribed--Unified by others to subscribe, that is, confirmed by the other side as a friendUnsubscribe--He cancels a subscription, asks to delete a friendUnsubscribed--refusing to be subscribed, that is, to reject the add requestError--Current state packet there are errorsInline two enumeration types: Presen
Related reading: Java Socket Chat Room Programming (ii) the use of socket to achieve a single chat room
There are many examples of using sockets to implement chat online, but I have seen many, many problems exist.
Here I will implement a more complete
, chat action design, refresh Time control.
Third, the chat room function expands the acceptance
1. Online population statistics
We set up a global application ("PEOPENUMW") variable to hold the number of online people and use a session ("access") variable to indicate whether the customer status is already in the chat
. As a result, it is hoped that access to it requires minimal blocking, requiring minimal synchronization and using a lightweight synchronization mechanism as much as possible. Implementation, the entire cache is divided into a number of buffers, each buffer item caches a message, the size of the buffer is fixed (since the central cache is primarily a cache user speaking, so the buffer size can be determine
Now online video chat room, video conference software, visual IP telephony hardware everywhere, do you want to do a play? This kind of hardware is nothing more than video plus network built. If you understand the video capture and network transmission skills, it is difficult to fail you. This article describes in detail how to use the SDK that outsiders need to d
Beginner JSP programming, generally like to do a message board, chat rooms, shopping sites or forums. Let me elaborate on how to implement a web-based, no refresh chat room.
Note: Refer to the struts version of the ajaxchat.
platform or technology:
Windows Xp,jsp2.0,servlet2.4,jstl,tomcat6,ajax,log4j,ant,eclipse, and so on.
idea:
1 page (information) Refresh
Beca
Chat Room warm love pure ASP chat room function Introduction
The 1.0 version of the chat room program, developed independently of the homepage by the software, is now available free of charge to anyone who is free to use it for an
);
Chat.outerwidth=screen.availwidth;
Chat.outerheight=screen.availheight;
}
This code first opens a Howtodo window with no status bar, scroll bar, adjustable size! Then move to the upper-left corner of the screen and zoom to the allowed screen size.
Online number
I based on the online number of NetEase chat room to
1. IntroductionThis project lesson is the server side and the client that implements the simple chat room Program.2. Knowledge pointsServer-side involves asyncore, asynchat and socket modules, The client uses the telnetlib, wx, time and thread these Modules.second, the project actual combat (server Side) 1. Server classFirst need a chat server, here inherit Async
At present, online video chat rooms, video conferencing software, visual IP telephony software everywhere, do you want to do a play? In fact, this kind of software is nothing more than video plus network built. If you are familiar with video capture and network transmission technology, it is hard to fail you at all. This article describes in detail how to use the SDK provided by others to develop video
them to complete the functions of the voice chat room. For ease of explanation, the graph on the main interface is marked to indicate various custom controls.
Now we will introduce the various controls:1. decibel display
The decibel display is used to display the sound size, such as the size of the sound collected by
business logic.
A) to implement a Video Conferencing System, the user needs to know who is the host after entering the room, and then open the video of the host;
B) to implement a video chat system, after entering the room, the user needs to know the number of male microphones in the current room, who are in male, and
, such as the user number and chat record size. You must provide a user name to access the chat room. Click Login button to enter the following functions:Protected void Login (object sender, EventArgs e){String user = txtUsername. Text;If (! ValidateNick (user) return;If (Global. Engine. UserExists (user )){LblErrorMsg
Combined with the Web page and ASP to achieve a simple web chat room production case, there are online chat, online personnel list, online time and other functions. At the end of this tutorial, we also introduce the platform environment and common debugging methods used by Flash and ASP in a more detailed way.First, the principleThe main process is to first send
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