http protocol version

Reprint Please note: @ small Wuyi http://www.cnblogs.com/xiaowuyi 6.1 simplest CrawlerWeb Crawlers automatically extract web pages.ProgramIt is an important component of a search engine. Python's urllib \ urllib2 and other modules can easily

When submitting a webpage form (Form), you can select two submission methods: Get and post. Most of us know that post should be used when submitting form data, and that the get method is not safe. What makes the difference between get and post? This

HTTP status: 202, 301, 304, 404, 503 reprinted Baidu... 301, 404, 200, 304, and other HTTP status, what does it mean? In the practical application of website construction, many small mistakes may occur, just as MySQL was not optimized at the

HTTP Error Codes table HTTP Error Codes 400 Invalid Syntax. Syntax problems401 Access denied. Access denied402 payment required. Must be complete403 request forbidden. The request is forbidden.404 object not found. The object is not found.405 method

With the development of nginx, more and more websites are using nginx, so the optimization of nginx becomes more and more important. Today, let's take a look at how gzip compression of nginx is compressed? Gzip (GNU-zip) is a compression technology.

Document directory 1xx (temporary response): status code that indicates a temporary response and requires the requester to perform the operation to continue. 2XX (SUCCESS): indicates the status code of the server that has successfully processed

1xx: request received, continue processing2XX: The operation is successfully received, analyzed, and accepted.3xx: the request must be further processed.4xx: The request contains an error syntax or cannot be completed5xx: the server failed to

1 **: request received, continue processing2 **: The operation is successfully received, analyzed, and accepted.3 **: the request must be further processed.4 **: The request contains an error syntax or cannot be completed5 **: the server failed to

  Go deep into Android and access HTTP resources through Apache HTTP   Httpclient Interface Implementation class: defaulthttpclient, which is also a common subclass used to implement the httpclient interface, Common abstract methods defined in

0: the request has not been initialized (open () has not been called ()). 1: The request has been created but has not been sent (send () has not been called ()). 2: The request has been sent and is being processed (the content header can be obtained

What do the status codes returned by the server mean? What do they mean when there are no problems? What are the status codes returned, the meanings of various return status codes of the server are as follows: 100 (CONTINUE) the requester shall

The webpage cannot be found (HTTP 400) Internet Explorer can connect to the Web server, but the web page cannot be found due to issues related to the web address (URL. Generally, the cause of this problem is that the entered website address is

Httplib is a relatively low-layer HTTP request module with dedicated packaging modules, such as urllib built-in modules and goto third-party modules. However, the higher the encapsulation, the less flexible it is, for example, in the urllib module,

HTTP header information check url http Server Response Code Checker Common response status codes 1 **: request received, continue processing2 **: The operation is successfully received, analyzed, and accepted.3 **: the request must be further

HTTP status code If you send a request to your server to display a webpage on your website 21kaiyun.com (for example, when a user accesses your webpage through a browser, your server returns the HTTP status code to respond to the request. This

200-The server returns the webpage successfully. 404-The requested webpage does not exist. 503-Server timeout The following is a complete list of HTTP status codes. You can also visit the W3C page on the HTTP status code to learn more. 1xx status

Http status code and status code HTTP is a Request/Response network transmission protocol. When a Web page information or resource (Document) is required by a client application (browser, the website server returns the Status Code, which is usually

When a user enters an HTTP-based URL (a URL starting with http: //) in a browser, It is equivalent that the Notification Server organizes an HTTP request according to the URL, and send a request to the server. At the same time, wait for the response

1 **: request received, continue processing2 **: The operation is successfully received, analyzed, and accepted.3 **: the request must be further processed.4 **: The request contains an error syntax or cannot be completed5 **: the server failed to

HTTP/WebSocket and httpwebsocketHttp Definition HTTP is a standard TCP protocol for client and server requests and responses.HTTP request format The HTTP request format consists of the request line, request header, empty line, and message body. Each