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One, persistent connectionWhat is a persistent connection? for the HTTP protocol, it is based on the request response model, when the client sends a request to the server, first establishes an HTTP connection, and the server responds to the client data, and the connection is closed.When the client sends the next request, the HTTP connection needs to be re-establi

HTTP cache mechanism, HTTP packet structure, HTTP request and response process, browser cache control, Benefits of HTTP Cache A page may have hundreds of thousands of requests. If the server needs to respond to the request every time, the load on the server may be too high and the server may be paralyzed, reducing the

To simplify the saying:WebService = HTTP protocol + XMLRest = HTTP protocol + JsonVarious APIs = HTTP protocol + Xml/json to implementHTTP Request Information Format① Request LineA. request method : Get,post,put,delete,trace,optionsB. request path (the requested resource, part of the URL)C. protocol used② Request header information③ Request principal Informa

HTTP Messages The information used for HTTP laundry interaction is called an HTTP message. The request side (client) HTTP message is called the request message, the response end (server side) called the response message. The HTTP message itself is a string literal consisting

First, HTTP messages The content used for HTTP protocol interaction is called an HTTP message. The client's HTTP message is called the request message, and the HTTP message on the server is called the response message. The HTTP m

1. The client an HTTP connection consists of two directions, one for this HTTP connection, and the other for the HTTP connection output.After the IP address and port number are connected using httpclient, the HTTP output is set as the HTTP request parameter. The

HTTP messages are information that is used for HTTP protocol interactions. Structure of request message and response message: Request Line Status line Header field General Header Request Header Response header Entity Header Other Several ways to encode common content Gzip (GNU Zip) Compress (standard compression of UNI

Came in and bought the Apple certificate and found all kinds of problems.Xcode6 can't test on my iphone6s. I had to upgrade to 7.HTTP traffic in Xcode 7 has the following error: Application transport security has blocked a cleartext http (http://) resource load since it is insec Ure. Temporary exceptions can be configured via your app ' s info.plist file.Words 10

To publish the Web site to IIS, Access has the following error:HTTP Error 500.21-internal Server error handler "Pagehandlerfactory-integr" has an error module in its module list "Managedpipelinehandler"Cause: After you install the framework v4.0, IIS is enabled, causing the framework to not be fully installedFIX: Start with all programs, accessories, right-click Command prompt, run as administrator, input "%windir%\microsoft.net\framework\v4.0.30319\aspnet_ Regiis.exe-i "command line.Deployment

connection:close1.0/keep-alive1.1 NBS P http request version features date:tue, Jul 18:23:51gmt request website time allow:get nbsp , NB Sp NBSP request Method GET Common also post keep-alive:5 nbsp NBS P 5 time of connection; connection:keep-alive NB Sp Long connections cache-control:max-age=300 NBSP ; Cache maximum Time 300s Comm

Comparison of HTTP 1.1 and HTTP 1.0 http://blog.csdn.net/weizhaozhe/article/details/3958945 A Web site may receive millions of user requests a day, in order to improve the efficiency of the system, HTTP 1.0 requires the browser and the server to maintain only a brief connection, every time the browser needs to establis

HTTP 1.1 compared to HTTP 1.0 A Web site may receive millions of user requests a day, in order to improve the efficiency of the system, HTTP 1.0 requires the browser and the server to maintain only a brief connection, every time the browser needs to establish a TCP connection with the server, the server completes the request processing immediately disconnect the

Introduction to HTTPThe HTTP protocol is an abbreviation for the Hyper text Transfer Protocol(Hypertext Transfer Protocol) and is used to transmit hypertext from the World Wide Web (www:world Wide Web) server the Transfer Protocol to the Local browser .HTTP is a TCP/IP communication protocol that transmits data (HTML files, image files, query results, and so on).HTTP