localhost | 易学教程

Unable to bind local host:8000 with Google App Engine

阅读更多关于 Unable to bind local host:8000 with Google App Engine

问题 I am trying to run a Python app in Google App Engine. The UI doesn't work so I tried using the command lines. I tried restarting my PC, I tried changing port with "dev_appserver.py --port=9999 ." but it still says Unable to bind localhost:8000 : raise BindError('Unable to bind %s:%s' % self.bind_addr) google.appengine.tools.devappserver2.wsgi_server.BindError: Unable to bind localhost:8000 回答1: The app server starts two servers; one for your application, the other for the development console.

OSX: PHP Error localhost and unable to load dynamic library

阅读更多关于 OSX: PHP Error localhost and unable to load dynamic library

问题 How can i fix this php error? PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/extensions/no-debug-non-zts-20100525/php_pdo_mysql.dll' - dlopen(/usr/lib/php/extensions/no-debug-non-zts-20100525/php_pdo_mysql.dll, 9): image not found in Unknown on line 0 I am on a mac/mavericks and I have made a mistake and did a sudo cp /private/etc/php.ini.default /private/etc/php.ini so now I get the error stated above when I run php -v 回答1: Follow this as it worked for me... The error

PHP cURL redirects to localhost

阅读更多关于 PHP cURL redirects to localhost

问题 I'm trying to login to an external webpage using a php script with cURL. I'm new to cURL, so I feel like I'm missing a lot of pieces. I found a few examples and modified them to allow access to https pages. Ultimately, my goal is to be able to login to the page and download a .csv by following a specified link once logged in. So far, what I have is a script that tests logging in to the page; the script is shown below: $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, 'https://www.websiteurl

PHP cURL redirects to localhost

阅读更多关于 PHP cURL redirects to localhost

PHP not saving data to database

阅读更多关于 PHP not saving data to database

问题 I feel like I'm getting closer to figuring out why PHP is not saving data to my database . I've tried learning PHP and MySQL from numerous tutorials and all have failed me. So... I feel like there may be something that I haven't been specifying when trying to connect to a MySQL database. In a recent tutorial that simply outputs text from an input to a table in MySQL, I got an Error stating that the server "localhost" was not found. My Apache has been installed on port 60 (not the default port

学习PYTHON之路， DAY 9 - Socket网络编程

阅读更多关于学习PYTHON之路， DAY 9 - Socket网络编程

__import__ 两种方法，官方推荐下面的方法 Socket 参数介绍 sk.bind(address) 必会　　s.bind(address) 将套接字绑定到地址。address地址的格式取决于地址族。在AF_INET下，以元组（host,port）的形式表示地址。 sk.listen(backlog) 必会　　开始监听传入连接。backlog指定在拒绝连接之前，可以挂起的最大连接数量。 backlog等于5，表示内核已经接到了连接请求，但服务器还没有调用accept进行处理的连接个数最大为5 这个值不能无限大，因为要在内核中维护连接队列 sk.setblocking(bool) 必会　　是否阻塞（默认True），如果设置False，那么accept和recv时一旦无数据，则报错。 sk.accept() 必会　　接受连接并返回（conn,address）,其中conn是新的套接字对象，可以用来接收和发送数据。address是连接客户端的地址。　　接收TCP 客户的连接（阻塞式）等待连接的到来 sk.connect(address) 必会　　连接到address处的套接字。一般，address的格式为元组（hostname,port）,如果连接出错，返回socket.error错误。 sk.connect_ex(address) 　　同上，只不过会有返回值

Java Socket通信

阅读更多关于 Java Socket通信

原理： 1.基于TCP协议，建立稳定连接的点对点的通信 a.实时，快速，安全性高，占用系统资源多，效率低 2.请求-响应模式 a.客户端在网络通讯中，第一次主动发起通讯的程序被称作客户端(Client)程序 b.服务端第一次通讯中等待连接的程序被称作服务端(Server)程序 c.Socket:发送TCP消息 d.Server Socket:创建服务器. 代码示范： Server类： 1.创建服务器，指定端口:ServerSocket(int-port); 1 ServerSocket server=new ServerSocket(8888); 2.接收客户端连接阻塞式 1 Socket socket=server.accept(); 2 3 // 打印：System.out.println("一个客户端建立连接"); 3.发送数据 1 String msg="发送数据"; 2 3 //输出流 4 5 BufferedWriter bw=new BufferedWriter(new OutputStreamWriter(scoket.getoutputstream())); 6 7 bw.write(msg); 8 9 bw.newLine(); 10 11 bw.flush(); Client类： 1.建立客户端，必须指定服务器+端口Socket(String host

Configuring Eclipse to add a buildpath folder outside the workspace

阅读更多关于 Configuring Eclipse to add a buildpath folder outside the workspace

问题 I'm developing PHP on a mac. As per other suggestions, I've set the workspace to be in the HTDOCS folder of MAMP. Unfortunately, this means I cannot use links to '/' as I would in production. Any suggestions? Relatedly, the workspace seems to prevent references to build paths outside the workspace, yet I would Like to keep my sensitive files outside the base workspace folder. Is there a way to do this? 回答1: I usually use the "link" feature: select folder in which you want to create the link

UDP from AndroidEmulator (--Genymotion--) to localhost Server(10.0.2.2) does not work?

阅读更多关于 UDP from AndroidEmulator (--Genymotion--) to localhost Server(10.0.2.2) does not work?

问题 I simply try to send and receive data between MonodroidApp(AndroidEmulator) and a localDevServer. I understand localhost is specially mapped to "10.0.2.2" on AndroidEmulator, so I did the following, but the app does not respond. System.Text.Encoding enc = System.Text.Encoding.UTF8; string sendMsg = "testtest"; byte[] sendBytes = enc.GetBytes(sendMsg); int localPort = 39000; var udp = new System.Net.Sockets.UdpClient(localPort); //send data string remoteHost = "10.0.2.2";//"127.0.0.1"; int

python与redis交互

阅读更多关于 python与redis交互

相关内容： redis模块的使用安装模块导入模块连接方式连接池操作设置值获取值管道事务订阅\发布首发时间：2018-03-14 15:02 python可以使用redis模块来跟redis交互 redis模块的使用：安装模块: pip3 install redis 导入模块： import redis 连接方式：严格连接模式： r=redis.StrictRedis(host="",port=) 更Python化的连接模式：r=redis.Redis(host="",port=) StrictRedis用于实现大部分官方的命令，并使用官方的语法和命令 Redis与StrictRedis的区别是：Redis是StrictRedis的子类，用于向前兼容旧版本的redis-py，并且这个连接方式是更加"python化"的连接池：为了节省资源，减少多次连接损耗，连接池的作用相当于总揽多个客户端与服务端的连接，当新客户端需要连接时，只需要到连接池获取一个连接即可，实际上只是一个连接共享给多个客户端。 import redis pool= redis.ConnectionPool(host='localhost',port=6379,decode_responses=True) r=redis.Redis(connection_pool=pool) r2