Some understanding-filters, interceptors, Ajax commits do not jump after, document.location.href invalid, callback function.

Workflow for filters and interceptors in 1.STRUTS2:Request--> executes the custom filter DoFilter method before the Chain.dofilter () method and the Chain.dofilter () method in the Execute default filter DoFilter method before the code--Execute the

js method for judging nan null undefined

The information collected is as follows:1. Judge undefined:Copy CodeThe code is as follows:var tmp = undefined;if (typeof (tmp) = = "undefined") {Alert ("undefined");}Description: typeof returned a string of six possible types: "Number", "string",

JS Regular Expression Negative match (forward-looking)

Introduction: JS Regular expression is a major difficulty in JS learning process, complex matching model enough to make the head big, but its complexity and its learning difficulty has also given it a powerful function. This paper starts from the

Introduction to HTTP status code (HTTP codes)

HTTP and Status codesHTTP may be familiar to everyone, that is, Hypertext Transfer Protocol. The browser communicates with the Web server via HTTP (and some other software, such as IM using the HTTP protocol), passes our request (HTTP request) to

PHP Fsockopen Analog Post/get method

Fsockopen is a very powerful function, support socket programming, you can use Fsockopen to implement the mail and other socket programs, etc., using fcockopen need to manually stitching out the header section. For details, refer to the official

See the difference between the jquery sub-element selector children () and the Find () example


A problem has recently been identified in the development of our hybrid app project. Learn the difference between the jquery selector find () and the Children () by this question. The problem is this: Our hybrid app is a single-page application

The input box in HTML or PHP can only enter a positive integer, and the logical and/or operation

Sometimes you need to limit the type of text box input content, this section share the regular expression limit text box can only enter numbers, decimal points, English letters, Chinese characters and other code.For example, enter a positive integer

php.ini (php config file) in MAGIC_QUOTES_GPC

The role of MAGIC_QUOTES_GPC in 1.php.ini (php config file ) : Passing $_get,$_post,$_ whether a single quotation mark is processed when a COOKIE is requested (a single quotation mark is translated with a backslash, such as \' so that a malicious

Find the parent element, child element, append element, insert element and delete element in jquery

jquery is powerful, and it has a lot to do with syntax that is compatible with CSS selectors when acquiring objects. And it's compatible with the CSS3 selector, and it's a lot more.So the jquery selector becomes a lot more powerful. On the most

AngularJS1 notes-(16)-constant, value, run in the module

Index.html: Index.js:var myApp = angular.module (' MyApp ', [], [' $provide ', function ($provide) {}])//name is injected into config . config (function (name { Console.log ("value in config:" + name) }) //run is executed

Design Web page entry information with your own definition of server data reception

Requirements: Design a Web page for inputting username and login password. And the data is passed to the server and displayed. 1, Foreword: The webpage submits the get and the post two kind of way.(1) For the Get submission method, take the example

Why did Tcp--telnet return after 127s?

BackgroundRecently wrote a script to monitor the business Server, the main principle is to use shell script (the machine running the shell called the Monitoring machine ) to call the project team dedicated interface test tools, the designated

Third, the HTML editor and body detailed

the best way to learn: learning ideas1. How to make a Web page: Create a new Notepad or use the EditPlus editor. editplus shortcut : copy one row and press "Ctrl+j". 2. In the editor, the HTML code has color differences. HTML

Use cookies to remember the user name garbled problem (URL encoding)

When you log in, submit a user name of Chinese name to the server and return to the cookie in the client,This process will be reported in the background java.lang.IllegalArgumentException (illegal data exception)URL-encode the data before you send

Use PAC Proxy to visit domestic website listen music download music

Available proxiesHttp:// (recommended)Http://

How to efficiently use the HTTP session you've hijacked?

HTTP Session HijackingHTTP is a stateless protocol, in order to maintain and track the user's state, the introduction of the cookie and session, but all based on the client to send a cookie to identify the user identity, so that the cookie, you can

JS Object inheritance

General inheritance is a problem that arises functionpeople (name,sex) { This. name=name; This. sex=sex; } people.prototype.showname=function() {alert ( This. Name); } functionStudent (name,sex,job) { ( This, Name,sex); This.

n ways to get file name extensions in PHP

PHP中获取文件扩展名的N种方法 从网上收罗的,基本上就以下这几种方式:第1种方法:function get_extension($file){substr(strrchr($file, ‘.‘), 1);}notes:The STRRCHR () function finds the last occurrence of a string in another string and returns all characters from that position to the end of

DirectX Installation Error: You cannot trust a compressed file that is required for installation, check that the encryption service is enabled and that the cabinet file certificate is valid

DirectX Installation ErrorYou cannot trust a compressed file that is required for an installation, check that the cryptographic service is enabled and that the cabinet file certificate is validIs the live software Open broadcaster Software, this

A simple 0 configuration command line http server-http-server (nodeJs)

Http-server is a simple 0 configuration command line HTTP server, based on NodeJs.If you don't want to write NodeJs web-server.js repeatedly, you can use This.installation (global Install plus-g):used under Windows :Open command line input in the

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