Role of XSL: Convert XML into HTML
The following is a part of the XML document:
...
Then, we use the following XSL file as an HTML template to convert XML data to an HTML file:
In the above Code, the XSL: For-each element is used to locate which elements in the XML document need to be displayed according to the following template. The select attribute is used
Css|xml
CSS (stacked style sheets) and XSL (extensible Style language) can define the display of XML files, what are the differences between them, and how they are used, which we'll give you in this article.In an XML file, which is basically a custom tag, it's obvious that a browser doesn't understand the tags, and now the browser is just a parser for an XML file--as long as your XML file is well-formed, it shows you the file intact. Content is separa
HTML validator is an extension of Firefox. It is used for offline HTML syntax error checks. After installation, it can display in real time whether the compiled webpage meets the web standards.
HTML validator (for Windows ):
Https://addons.mozilla.org/zh-CN/firefox/addon/249
On Ubuntu 10.04, HTML validator is installed on Firefox 3.6 and cannot be use
The example in this article describes the validator validation extension usage in Laravel4. Share to everyone for your reference, specific as follows:
Whether you write the interface or write a Web page, the essence is passed in the parameters, and then the business logic, and then output the specific content. Therefore, the verification of the parameters is an inevitable link, such as the transmission over the email is not empty, is not a legitimate
I. Advantages of the validator framework
The validator framework is a struts plug-in that was originally designed and implemented by David Winterfeldt. The validator framework was available from the Struts 0.5 era, but at that time the validator framework was just a donated jar package. To make it easier for developer
XSL
XSL refers to the Extensible Stylesheet Language. It is a language used to present XML data in readable format.
Directory
Introduction
Syntax
Whether XSL is the same as XML
Purpose
Application
Introduction
XSL is for XML, just like CSS for HTML. It refers to
Validator is a verification component in the jfinal framework. It provides common verification methods in the validator class, And validator implements the interceptor interface. Therefore, validator is equivalent to an interceptor. The specific usage is as follows:
For example, when logging on, check whether the user
The struts2 framework system has registered a built-in checker. You can open the xwork under the Lib package of struts2. jar package, find a default under the COM/opensymphony/xwork2/validator/validators directory. xml configuration file, which defines the built-in checker of the struts2 framework.From the struts2 configuration file, we can see that struts2 has the following built-in Checker:1 required: required. The field must have a value.Fieldname:
This example describes the Yii core Validator API. Share to everyone for your reference, specific as follows:
Core Validator Cores validators
Objective
YII provides a series of Common Core validators that you canFound in Yii\validators namespace. Instead of using long validator class names, you can replace them with aliases.
For example, you can use the alias
Why is it difficult to use the validate () method of actionform to verify user input data before validator is available?
1.The validator framework comesPrepackaged with several validation routines, making the transition fromHard-coded validation logic painless. (what isHard-coded validation logic? Is it that programmers do not have to write codeLine by line to perform validation ?) Instead of coding validat
Use async-validator to compile the Form component,
In front-end development, Form verification is a common function. Some ui libraries such as ant. design and Element ui both implement Form components with verification functions. Async-validator is a library that can perform asynchronous data verification. The ant. design and Element ui Form components both use async-va
Because the code is relatively simple and less annotated, it is mainly used to verify simple rules (you can also add Regular Expressions by yourself if you have built-in ones, and complex methods are not supported at the moment ), it also handles the verification during form submission. The main idea is to follow a previously jQuery-based validator plug-in. The following is the js Code (it is not elegant when binding objects. I hope you can give me so
Kernel Authenticator core validators0. PrefaceYII provides a series of Common Core validators that you canFound in yii\validators namespace . Instead of using long validator class names, you can replace them with aliases.For example, you can use alias required instead of the Yii\validators\requiredvalidator class:this yii\validators\validator:: $builtInValidators attribute the alias of all supported validat
In the development and construction of PHP Web site, user registration, message is an essential function, the user submitted information data are submitted through form form, in order to ensure the integrity of the data, security, PHP form form verification is the first link to filter data, PHP to form the data submitted to verify the various ways, Early in the general use of JavaScript to verify PHP forms, with the advent of the WEB2.0 era, taking into account the user experience, using the jqu
1. Get started with XSL
1. style sheet of XSL---XML
The HTML webpage uses a pre-defined identifier (TAGS), which means that all the tags have a clear meaning. For example, However, XML does not have fixed identifiers. We can create the identifiers we need, so browsers cannot Parse them automatically. For example, To control the display of XML documents, it is necessary to establish a mechanism. CSS is
1. Use of templates
Some encoding tables are stored in the database, but some Chinese characters are displayed.
In this case, we can define an XSL file that stores data. I have defined a codetab. XSL
Reference this file to the archive. XSL file, which is the file to display the real data.Here is an example of a diploma:
Validator verification framework
The validator framework can overcome the limitations of programming data verification in actionform bean. It allows struts to apply flexible configuration verification rules without programming.
The validator framework mainly depends on two jar files: jakarta-oro.jar and commons-validator
I learned validator today. One method in actionform is validate (), which can be used to write verification code. But the disadvantage is that if I have a lot of actionforms, I don't want to write them to the dead. Therefore, the dynamic form (dynaactionform) appears, but it must be verified based on the dynamic form. This is troublesome.
Validator was created by David winterfeldt and can be integrated into
We are doing some operations are required to verify the user's input data, such as the registration of the site, the need for data validation of individual data items, STRUTS2 provides some default validators, such as digital detection, mailbox detection, string length detection and so on.
The Common validator
Checker
Role
Required
Required validator, req
Bean Validation class library comparison
Recently, when I was writing a project, I wanted to add the Bean Property Verification, just as there was a verification for each value in Domain in Grails. However, the workload for writing beautiful data by yourself is not small, and some people may have done this basic job. After checking on the Internet, we found the jsr303 standard, and there was a very mature implementation class library. After reading the circle, there are three better ones: Hibern
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.