之前文章写过Linux C Socket 收发Json数据,最近用Qt Server实现了一遍。...程序中用到了Qt 的Socket Server,但主要介绍下Qt中如何操作Json数据,将接收到的字节流转换为Json对象,又如何将Json对象转换为字节流。 一、 程序介绍 1.
#include #include #include #include #include <netinet...= 2) { //ExitWithMessage(0xF001, "Need parameter: "); serverPortString...addrCriteria.ai_protocol = IPPROTO_UDP; // only UDP socket returnValue = getaddrinfo(NULL,...->ai_protocol); if(socketHandle < 0) { fprintf(stderr, "socket() failed....Free address list allocated by getaddrinfo freeaddrinfo(serverAddr); printf("Starting the UDP Server
MySQL,mysqldump,php连接mysql服务常会提示下面错误: ERROR 2002 (HY000): Can't connect to local MySQL server through...3、php连接mysql服务提示"Can't connect to local MySQL server through socket..."...服务正常运行,用户名密码也完全正确,使用php的mysql_connect函数却连接不了mysql,调用php的mysql_error()函数提示“Can't connect to local MySQL server...server through socket..."...there has %s dbs' % count conn.commit() conn.close() 5. php pdo连接mysql提示"Can't connect to local MySQL server
03 优缺点 优点: socket编程流程清晰且简单,适合学习使用,了解socket基本编程流程。 缺点: 该模型并非并发模型,是串行的服务器,同一时刻,监听并响应最大的网络请求量为1。...仅适合学习基本socket编程,不适合任何服务器Server构建。...仅适合学习基本socket编程,不适合任何服务器Server构建。...③ Thread Pool中的每个thread都启动多路I/O复用机制(select、epoll),用来监听main thread建立成功并且分发下来的socket套接字。...③ Thread Pool中的每个thread都启动多路I/O复用机制(select、epoll),用来监听main thread建立成功并且分发下来的socket套接字。
MySQL -uroot ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock'...首先需要明白的是,Linux端的mysql server启动时会开启一个socket,Linux上的MySQL的客户端在不使用IP连接时mysql server时,默认也会通过套接字来链接mysql server...1.mysql server的套接字文件。...mysql server。...[mysql] socket=/data/mysql.sock [mysqldump] socket=/data/mysql.sock [mysqladmin] socket=/data/mysql.sock
在Windows下启动redis报错:Creating Server TCP listening socket *:6379: bind: No error 如图所示: 解决方案: 直接在命令行中输入...如下图所示: 然后再输入:shutdown 意思就是关闭的意思,如下图所示; 然后再输入:exit 意思就是退出的意思,如下图所示; 然后重新输入启动命令:redis-server.exe
与c/c++ socket编程对照见http://blog.csdn.net/aspnet_lyc/article/details/38946915 server: import socket PORT...= 9999 BACKLOG = 5 MAXLINE = 1024 listenfd = socket.socket(socket.AF_INET,socket.SOCK_STREAM) listenfd.bind...print 'a new connection' buf = [] buf = connfd.recv(MAXLINE) print buf connfd.send('Hello,this is server...') connfd.close() client: import socket addr = '127.0.0.1' port = 9999 sockfd = socket.socket(socket.AF_INET..., socket.SOCK_STREAM) sockfd.connect((addr, port)) sockfd.send('Hello,this is client') buf = [] while
https://blog.csdn.net/n_fly/article/details/52692480 1、window10环境下面安装的redis,之前安装好弄了一下,过了好几天,再次使用redis-server.exe...命令启动,发现报了如下所示的错误: 1 D:\biehl\redis>redis-server.exe 2 [16916] 28 Nov 19:43:49.684 # Warning: no config...In order to specify a config file use redis-server.exe /path/to/redis.conf 3 [16916] 28 Nov 19:43:49.689...# Creating Server TCP listening socket *:6379: bind: No such file or directory 4 5 D:\biehl\redis...12420] 28 Nov 19:46:00.468 * DB loaded from disk: 0.000 seconds 35 [12420] 28 Nov 19:46:00.468 * The server
摘自官方数据信息; 主要是通过例子去实现完成socket.io的数据流程机制,代码如下: package main import ( "http" "log" "socketio
登录MySQL报错:Can’t connect to local MySQL server through socket ‘/var/lib/mysql/mysql.sock’ (2) 解决办法: 1.
{ ServerSocket server = new ServerSocket(10000);// 创建服务器socket,监听10000端口 // 开启信息发送的线程...sendMsgThread(); // 循环进行与客户端的连接 while (true) { Socket socket = server.accept...System.in)); String send = toClient.readLine(); out.println("server...socket = new Socket("localhost", 10000);// 创建socket,连接localhost(127.0.0.1)的10000端口 System.out.println...Scanner(System.in);// 控制台输入name String name = s.nextLine();// 读取 System.out.println("say to server
在安装好了MySQL之后,使用了新的配置文件后,MySQL服务器可以成功启动,但在登陆的时候出现了ERROR 2002 (HY000): Can't connect to local MySQL server...through socket,即无法通过socket连接到mysql服务器,同时提供了socket文件的位置。...ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/data/mysqldata/mysql.sock' (...Turning logging off for the who le duration of the MySQL server process..... 2014-10-11 13:17:21 13001 [Note] - '::' resolves to '::'; 2014-10-11 13:17:21 13001 [Note] Server
www.runoob.com/redis/redis-install.html windows下安装Redis第一次启动报错: [2368] 21 Apr 02:57:05.611 # Creating Server...TCP listening socket 127.0.0.1:6379: bind: No error 解决方法:在命令行中运行 redis-cli.exe 127.0.0.1:6379>shutdown...not connected>exit 然后重新运行redis-server.exe redis.windows.conf,启动成功!
TCP echo server 服务端 创建套接字 | 绑定套接字 #include /* See NOTES */ #include <sys/socket.h.../tcpclient server_ip server_port 例如:....= 3) { std::cerr << "Usage: " << argv[0] << " server-ip server-port" << std::endl;...; memset(&server,0,sizeof(server)); server.sin_family=AF_INET; server.sin_port=htons(serverport...); //server.sin_addr.s_addr ::inet_pton(AF_INET,serverip.c_str(),&server.sin_addr); int
redis运行时出错 Creating Server TCP listening socket 127.0.0.1:6379: bind: No error error 解决方法,依次输入以下命令 redis-cli.exe...shutdown exit redis-server.exe 即可解决问题,但是该方法不能根本解决,详见stackoverflow http://stackoverflow.com/questions
解决: redis-cli.exe shutdown exit redis-server.exe redis.windows.conf (redis.windows.conf不写是默认加载的)
解决启动redis出现的creating server tcp listening socket *:6379: listen: unknown error ---- 在启动redis时总是提示unknow...在本地的服务和进程中都没有出现redis; 通过百度、Goggle没有找到合适的解决方法; ---- 与安装运行成功的redis服务进行比较,比较了redis-server.exe和配置文件redis.windows.conf
1、[root@lam7 opt]# mysql ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘/var...mysql.sock’ (2) 2、[root@lam7 opt]# mysql -h localhost ERROR 2002 (HY000): Can’t connect to local MySQL server...Your MariaDB connection id is 244 Server version: 10.1.19-MariaDB Source distribution Copyright © 2000...MySQL server through socket ‘***’ (2)”,找不到“socket”文件,我们首先要确认的是mysql服务是否正在运行。...“socket”参数值,指向的socket文件路径完全一致。
server端 #coding:utf-8 import socket import os sk = socket.socket() #print(sk) HOST = '127.0.0.1'...server_response=input(">>>") conn.sendall(bytes(server_response,"utf8"))...),MyServer) server.serve_forever() client.py #coding:utf-8 import socket ip_port = ('127.0.0.1',...sk.sendall(bytes(inp,"utf-8")) if inp == 'exit': break server_response=sk.recv(1024)...print (str(server_response,"utf-8")) sk.close() 执行结果服务器端通过多线程完成并发多客户端“同时”聊天效果。
Socket是对TCP/UDP协议的封装,Socket本身并不是协议,而是一个调用接口(API),通过Socket,我们才能使用TCP/UDP协议。...Receive: #coding=utf-8 import socket s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) # 绑定端口: s.bind...% data, addr) Send: #coding=utf-8 import socket s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)...在发送数据之前,要先建立连接 Server: from socket import * from time import ctime HOST='' PORT=12345 BUFSIZ=1024 ADDR...=(HOST, PORT) sock=socket(AF_INET, SOCK_STREAM) sock.bind(ADDR) sock.listen(5) while True: print
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