code 404

Node. js builds local servers to easily solve cross-origin problems. node. js local servers Recently, I used a demo written with jquery to run it. At the beginning, I forgot to enable the local service. As a result, the console always reported

In the actual development, actually seldom uses the transaction, generally the transaction uses more is in the money computation aspect.When MyBatis integrates with spring, what does the transaction do? In fact, it is very simple to add

Get the GET Request contentThis function is provided by the parse function in the URL module in node. js.var http = require (' http '); var url = require (' URL '); var util = require (' util '); Http.createserver (function(req, res) {

Successful status code:200– server successfully returned to Web page304– not modifiedFailed status code:404– The requested page does not exist503– Server is temporarily unavailable500– Server Internal ErrorThe following is not very common, remember

What is a status code?The function of the status code is: The server tells the client what happened.The status code in the HTTP protocol is now the first line of HTTP response. It returns a three-digit status code and status information. Status code

Yahoo! The predictional performance team brings best practices to improve web performance. They conducted a series of experiments, developed various tools, wrote a lot of articles and blogs, and participated in discussions at various meetings. The

What is an HTTP status codeThe HTTP status code is used by the Web server to tell the client what has happened.The status code, located in the first line of HTTP Response, returns a "three-digit status code" and a "status message." The "three-digit

SummaryWhat is a Web server?Web servers generally refer to Web servers, which are programs that reside on some type of computer on the Internet, and the basic function of Web servers is to provide web information browsing services. It only supports

Requirements: Click the dropdown box, select a data type, and automatically display the name of all data items under that type in the form, that is, all the non-repeating ddlname of the same keyword in the database.1. Add in dictionaryindex.jsp:2.

200 - ok, Server successfully returned to Web page      - Standard response for  successful http requests.301 - moved permanently (Permanent jump), the requested page has been permanently redirected to the new location.

1. Read the file asynchronously:var fs= require (' FS ');Read the requested file contents from the file systemFs.readfile (PATHNAME.SUBSTR (1), function (err, data) {if (err) {Console.log (ERR);HTTP Status code: 404:not FOUNDContent

Today, I would like to speak briefly about the knowledge I have learned. HTTP protocol: The HTTP protocol is the Hypertext Transfer Protocol, which is the application layer protocol for transmitting Hypermedia documents, and the HTTP protocol is a

The web system consists of a client (browser) and a server-side two parts. The Web system architecture is also known as B/s architecture. The most common Web server has Apache, IIS, etc., commonly used browsers are IE, Firefox,Chrome and so on. When

HTTP protocol is located in the application layer of the Protocol, we are in the daily Web page, such as in the navigation site request Baidu home page, will first through the HTTP protocol to do a similar coding work, sent to Baidu Server, Then in

In the website operation, the error is unavoidable, the error page generation is also indispensable.These days to see a lot of bo friends of the article, I want to summarize what I learned from and the actual configuration.First, we need to know the

first, what is AjaxAjax (Asynchronous JavaScript and XML) can be understood to perform asynchronous network requests for JavaScript. The popular understanding is that if there is no Ajax technology, change a small part of the Web page (even a line

ObjectiveAfter the request is sent on the network, it is often judged by the request's status code that the successful failure or not, the common status code is 200,404,500.But do you think there are only so many status codes for HTTP requests? is

When the server responds to the client, it responds with the corresponding status code, and different status codes have different meanings.1XX: Information class2XX: Success Class3XX: Redirect Class4XX: Client Error class5XX: Service-side Error

first, what is AjaxAjax (Asynchronous JavaScript and XML) can be understood to perform asynchronous network requests for JavaScript. The popular understanding is that if there is no Ajax technology, change a small part of the Web page (even a line

Knowledge Points:1) arrayAn array is a variable used to store a series of values that can be indexed to access the values of the array.An array in awk is called an associative array because its subscript (index) can be a number or a