simple websocket

Socketis the intermediate software abstraction layer that the application layer communicates with the TCP/IP protocol family, which is a set of interfaces. In design mode, the socket is actually a façade mode, it is the complex TCP/IP protocol family hidden behind the socket interface, for the user, a set of simple interface is all, let the socket to organize data to meet the specified protocol. The previous chapters we talked about the difference bet

Using WebSocket in Springboot is different from other ways, mainly because Springboot has a built-in tomcat and a certain configuration for springboot. The following is a record for using the WebSocket feature in Springboot. First of all, we want to implement a simple function: 1, to achieve a multi-user connection. 2, the client sends the information to the serv

:@ServerEndpoint (value= "/websocket", Configurator=gethttpsessionconfigurator.class)@ServerEndpoint (value= "/websocket")public class WebSocket {Public WebSocket () {}Push messages to all userspublic static void Broadcastall (Jsonobject jsono) {Listiterator It=webapp.appsession.listiterator ();while (It.hasnext ()) {t

. option (CHANNELOPTION.SO_SNDBUF, 1024 * 256). OPTION (CHANNELOPTION.SO_RCVBUF, 1024 * 256); Bootstrap. Handler (new Udpmpegtshandler ()); Channelfuture future = Bootstrap.bind (port). sync (); if (future.issuccess ()) {System.out.println ("UDP stream server start at Port: + port +."); } future.channel (). Closefuture (). await (); The catch (Exception e) {} finally {if (Bossloop!= null) {Bossloop.shutdowngracefull Y (); }

Objective HTML5 supports the use of the WebSocket protocol to maintain a long connection with the server, to facilitate the transfer of data between the two parties, and the server can actively send information to the client, and before this use of HTTP is difficult to do. The following describes the simple use of websocket++ implemented using C + +.

*/@Override public void Ontextmessage (Charbuffer cb) throws Ioexce ption {for (Mymessageinbound mmib:userlist) {//loop sends the current user's information to all online users charbuffer buffer = Charbuffe R.wrap (CB); Mmib.myoutbound.writeTextMessage (buffer); Invokes the sending method of the specified user to send the current user information mmib.myoutbound.flush (); Empty Cache}}/** * has binary message data arrives, temporarily did not study this function under what circumstances

Introduction: WebSocket is a new function of HTML5 specification, used to solve the problem of two-way communication between browser and background server, using WebSocket technology, the backstage can push the message to the front end at any time, in order to ensure the unity of the front and back platform, in the traditional stateless HTTP protocol, this is "unable to do". principle: the client is monitor

onlinecount = 0; private static concurrenthashmapThis code is also copied from the Internet, but after my modification@ServerEndpoint("/ws")This line of code indicates that the address of this websockt server is when the project is running on the Tomcat server:Ws://localhost:8080/web2/ws, where Web2 is the Artifect Id of the previous project, this example is WEB2Each session here is a connection to each client.Ssmap is a thread-safe map that joins clients to this map whenever a client connec

processing class, processing the message from the front-end Package util; Import Java.nio.CharBuffer; Import Java.util.HashMap; /** * * @ClassName: Messageutil * @Description: Message processing class * @author mangues * @date- * * public class Messageutil {public static hashmap 5.web Configuration 6, the front-end, for convenience, I directly used two JSP, in which with Two JSP does not have any essential difference, only uses to represent two di

Swoole and websocket Simple Chat Room Development First, I want to talk about some habits of writing code. First, any configurable parameters or variables must be written into a config file. Second, the Code must have a log record and complete error reporting and record the error. To put it bluntly, swoole should be something that every phper needs to understand. It claims to have redefined php. This chat

[TOC]ObjectiveRecently, there was a problem in the company, and some websocket messages in the cluster were lost.The problem is simple, and the service that sends the message is not the same service as the recipient's connected service.Solution SolutionsUse Middleware (MQ, Redis etc) to communicate between services.Instead of sending the WebSocket message directl