http information in three HTTP messages
3.1 Message structure:
Message header + blank line (CR+LF) + message body
First content:
Request line: Used to include the requested method, request URI, and HTTP version
Status line: Contains status codes,
Recently, our website often reports a 503 error: "HTTP Error 503. The service is unavailable ". But it is normal to brush one or two times.
It is estimated that the maximum number of concurrent connections of the website is exceeded.
What is
HTTP messages are text-oriented, and each field in a message is an ASCII string, and the length of each field is indeterminate. HTTP has two kinds of messages: Request message and Response message.
HTTP Request message
An HTTP request message
The HTTP status code is a 3-bit numeric code that represents the HTTP response status of the Web server. It is defined by the RFC 2616 specification and is extended by RFC 2518, RFC 2817, RFC 2295, RFC 2774, RFC 4918, and other
HTTP in Layman's HTTP request http (Hypertext Transfer Protocol) is a set of rules for computers to communicate over the network. Computer experts design HTTP to enable HTTP clients (such as Web browsers) to request information and services from an
HTTP is an object-oriented protocol at the application layer. It is applicable to distributed hypermedia information systems due to its simple and fast method.
System. It proposed in 1990 that, after several years of use and development, it has been
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 message itself is a
See the following section in the httpcomponent document:
1.4.1. Http Transport Safety
It is important to understand that the HTTP protocol is not well suited to all types of applications. HTTP is a simple request/response oriented protocol which
Previous wordsAn HTTP connection is a critical channel for HTTP message transmission. To master HTTP, you need to understand the ins and outs of HTTP connections and how to use those connectionsIf you want to view a Web page, the browser will follow
Http://blog.csdn.net/qxs965266509/article/details/8082810
Common request header fields in HTTP requestsAccept: the data type supported by the client for high-speed servers.Accept-charset: Used to tell the server that the client adopts the encoding
Web and network basics, HTTP packets, working principles, HTTP Communication Technology in Java, java Communication Technology
I. web and network Basics
1. HTTP history
1.1 concept of HTTP:
HTTP (Hyper Text Transfer Protocol) is a communication
From: http://blog.csdn.net/gueter/article/details/1524447
HTTP is an object-oriented protocol at the application layer. It is applicable to distributed hypermedia information systems due to its simple and fast method. It proposed in 1990 that,
Author:jeffreyIntroductionHTTP is an object-oriented protocol belonging to the application layer, which is suitable for distributed hypermedia information System because of its simple and fast way. It was proposed in 1990, after several years of use
What is HTTP?
Simply put, it is a communication specification based on the application layer: both parties need to communicate, and everyone must abide by this specification, which is the HTTP protocol.
What can the HTTP protocol do?
Most
HTTP Status CodeCommon Status Codes:Http:status 200– Server successfully returned to Web pageHttp:status 404– The requested page does not existHttp:status 503– Service Not availableDetailedDescription: Http:status 1xx (Temporary response)
Http protocolImportance:1. No matter the future use of WebService or rest as a large-scale architecture, can not do without.WebService = Http protocol + XMLRest = HTTP protocol + JsonA variety of APIs, generally also with HTTP + Xml/json to achieve2.
Good articles... Inniu ~ (Partition _ tables)
Http://www.cnblogs.com/skynet/archive/2010/05/18/1738301.html
Introduction
I think anyone who is familiar with the HTTP protocol can give a reason. But if I ask you what HTTP request methods are
Introduction
I think anyone who is familiar with the HTTP protocol can give a reason. But if I ask you what HTTP request methods are available? What is the difference between post and get? Is there a limit on the size of the data transmitted by
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