Web Develop

1. Use the NAT model for the TCP protocol type of LVS service load balancer for a PHP application, such as discuz! forum or phpMyAdmin;The construction of the LVS cluster of NAT model is based on the network address translation, so it is necessary

1.Tar xvf apr-1.6.2.tar.gzTar xvf apr-util-1.6.0.tar.gzTar xvf httpd-2.4.28.tar.bz22.Cp-a apr-1.6.2 HTTPD-2.4.28/SRCLIB/APRCp-a apr-util-1.6.0 Httpd-2.4.28/srclib/apr-util3.Getent passwd Apache View Apache AccountApache users must be guaranteed to

　　SessionSession in ASP., the client (Goggle,firefox,ie, etc.) and server-side sessions are used to store specific session information and, to be precise, to store specific user information. When the client sends a request to the server, such as the

HTML5 's Sessionstorage and LocalstorageThe Web Storage in HTML5 includes two ways of storage: Sessionstorage and Localstorage.sessionstorage is used to store data locally in a session, which can only be accessed by a page in the same session and

The adapter design pattern simply fits an interface of an object to the interface expected by another object.UML diagram:Description1.MyObject has a public method of MethodA (), Origianconsumer gets an instance of MyObject, and calls MethodA ()

Dotweb belongs to a web framework that wants to help developers quickly build Web applications, improve development efficiency, and reduce unnecessary code bloat through framework behavior.Frame Address: Https://github.com/devfeel/dotwebThe dotweb

Jsbin.com provides simple, intuitive, and easy-to-use Vue debugging capabilities, and the biggest benefit is that you can learn Vue without having to build your own environment1. Open Http://jsbin.com/joxinumota/edit?html,js,console,output2, click

Definition: A namespace is a way to encapsulate things.Role: Generally used to solve two types of problems encountered when writing a class library or application to create reusable code such as a class or function:(1) User-written code conflicts

1 Basic use:================ urllib2 Use of the (PY2) library================Py3 is the same as urllib.request other useImport urllib.requestheaders ={ " User-agent ": " ...... " }request =urllib2. Request ( " http://www.baidu.com ",

1. What is JSP?-JSP (Java server Page) Java Server page, which is the page running on the service side. It is a dynamic web-based technology pioneered by Sun, with the participation of many international companies. JSP technology is a kind of file

1Note: This way for normal connection jump, if a page is to use "location.href" way to jump, the value obtained is empty, because this way is equivalent to directly in the address bar to enter the URL, from the Search Folder directly open the page

Python3 Study notes (use of urllib modules)1. Basic Methods urllib.request. urlopen (url, data=none, [timeout, ]*, Cafile=none , capath=none, cadefault=false, context=none) -url: The URL that needs to be opened-Data submitted by Data:post-Timeout:

1. Learn about CSS box models.Flexible use of the 2.CSS selector.3. Example: The image text is formed by an HTML file with div and other element layouts. Create a new CSS file and link to the HTML file. Style defined in CSS

Foreign key-based approach:Attached code:　　 Public classManager {PrivateInteger Mgrid; PrivateString Mgrname; PrivateDepartment Department; PublicInteger Getmgrid () {returnMgrid; } Public voidSetmgrid (Integer mgrid) { This. Mgrid =Mgrid; }

First, preface Today continue to the fourth chapter of the study content, began to learn the complex transformation of knowledge. Second, the text Example1: Composite TransformationsIn the book, the author encapsulates a set of matrix objects

1, complete lamp basic realization http://guanm.blog.51cto.com/13126952/1974839Administrator who needs to manage the blog database, previously created the test user permissions are not enough, give the test user plus permissionsGrant all on * * to '

Local error handling1,errorpageDECLARE errorpage= "page address to display" in the error Page directive pageDECLARE iserrorpage= "True" in the page that you want to display (default false to output Exception.getmessage print error message in the JSP

Cache-controlCache-control is the most important rule. This field is used to specify the instructions that all caching mechanisms must obey in the entire request/response chain. These directives specify the behavior that is used to prevent the cache

The format of the anonymous function:Format: (function () {// Code }) ();//和这个基于jQuery的比较下：$ (function () { alert ("This is a Test");});Explanation: The first pair of parentheses of the enclosing function (function () {}) returns an unnamed

Examples are as follows:s1= "123"; s2= "145"= $.merge (S1,S2); // s3= "123", string S1 s2 unchanged, return s1s4 = s1.concat (s2) by default; // s4= "123145"a1=[1,2,3];a2=[1,4,5= $.merge (A1,A2); a1=[1,2,3,1,4,5], a3=[1,2,3,1,4,5] merges a4 =