Web Develop

JSP page@ Page Language="Java"Import="java.util.*"pageencoding="GB18030"%>StringPath=Request.getcontextpath ();StringBasePath=Request.getscheme ()+"://"+Request.getservername ()+":"+Request.getserverport ()+Path+"/";%>DOCTYPE HTML PUBLIC

5XX Series500Internal service errors Internal Server errorThe reasons are: large traffic, server resources, or internal execution errors, such as back-end MySQL hangs.502 (same as 504 case)Bad GatewayThe reasons are generally:1 Nginx appears 502

rewrite the session's storage mechanismSession Data AreaThe default is stored as a file in the Server OS temp directory!When the session data area is too large, the file form of storage, operation speed is slow. The disk read-write (io,input/output)

/** * Login Successful * @return [type] [description] */public function Checklogin ($data) {$user = M ($this->tablename); $map [' Name '] = Array (' eq ', $data [' name ']), $map [' pwd '] = array (' eq ', $data [' pwd ']); $findres = $user->where ($

Three ways to use a CSS1 Built-inCharacteristics:A certain separation of structure and styleHigh maintainabilityCan affect the current page2 Outer-jointCharacteristics:Complete separation of structure and styleHighest maintainabilityCan affect all

Recently, using jquery Ajax, we found that some effects were incorrect, and the JSON string returned after the Ajax request came back, but there was a problem with the order of execution.var false ; $.post ('/home/detectcachedlogininfor/',function (

ObjectiveIn general, web-side IM technology is not easy to implement due to browser-limited design limitations, and there are roughly 4 main web-end IM solutions available: Traditional Ajax short polling, Comet technology, WebSocket Technology, SSE (

the process of a regular website visit is a simple summary, for our ordinary site access, the technology involved is: User Action Browser access, the browser sends an HTTP request to the server; The server receives the HTTP request, the WEB

Here, there are two ways to implement multi-tab effects, one based on the DOM, the other based on jquery, and this time I'm writing a different tab for a phone plan.Method One:First, we want to write out the general frame and style of the page, and

1.file_exists () Determine if the file exists:2.unlink Delete a file3.rewind resets the pointer to the beginning, ftell the position of the pointer, where the fseek pointer is positionedEcho Ftell ($FP);//The position of the pointer should be 2//at

In JS, like numeric types, string types, and Boolean types, these can no longer be split and belong to the base type. In contrast to a complex type: An object type, which is itself composed of several other types.There are two ways to create an

1. The first JS file to be introduced in the project isscript src="Http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.1/jquery.min.js" > script> script src="Http://cdnjs.cloudflare.com/ajax/libs/flot/0.8.3/jquery.flot.min.js" >script> script src=

1 PHP Packagehttp://pecl.php.net/packages.php2 RIPS PHP Security Code AuditHTTPS://www.ripstech.com3 PHP Security vulnerability Full Solution Serieshttp://www.cnblogs.com/milantgh/p/3839971.html4 PHP static detectionHTTPS://Github.com/etsy/phanHttp:/

1.fileopen Additional methodsSeveral methods of 2.fopen reading　　PHP Learning records processing of files two

the relationship between JQ and JS: Can coexist, not mix. JQ source code, source JS Object-oriented WriteJQ notationChained operation $ (' #div '). html (' Hello '). css (). Click () assigns a value to the combination. html (' Hello ') assignment,

$area=Array( Array(' id ' =>1, ' name ' = ' Anhui ', ' parent ' =>0),Array(' id ' =>2, ' name ' = ' ' Haidian ', ' parent ' =>7),Array(' id ' =>3, ' name ' = ' Suixi County ', ' parent ' =>5),Array(' id ' =>4, ' name ' = '

Definition and UsageThe cursor property specifies the type (shape) of cursors to display.This property defines the cursor shape used when the mouse pointer is placed within the bounds of an element (although CSS2.1 does not define which boundary

Scss + react + webpack + ES6Write in Front:Just after learning a slide case in the net, I added the react, the combination of the Two. First of all, Let's see the effect click hereYou can first use pure JS to achieve the above effect: my github on

LNMP One-click installation package is a Linux shell that can be installed for centos/radhat/fedora, Debian/ubuntu/raspbian/deepin vps, or standalone host LNMP (nginx/mysql/php) , Lnmpa (nginx/mysql/php/apache), LAMP (apache/mysql/php) production

Afnetworking is a favorite network library in OS X and Ios. To cater for the new iOS version of the upgrade, afnetworking removed all support based on the Nsurlconnection API in version 3.0. If your project has previously used these apis, it is