Added: websites/production/struts/content/core-developers/using-field-validators.html ============================================================================== --- websites/production/struts/content/core-developers/using-field-validators.html (added) +++ websites/production/struts/content/core-developers/using-field-validators.html Thu Jun 1 11:35:58 2017 @@ -0,0 +1,210 @@ +<!DOCTYPE html> +<html lang="en"> +<head> + <meta charset="UTF-8"/> + <meta name="viewport" content="width=device-width, initial-scale=1.0"/> + <meta name="Date-Revision-yyyymmdd" content="20140918"/> + <meta http-equiv="Content-Language" content="en"/> + <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> + + <title>Using Field Validators</title> + + <link href="//fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,600,700,400italic,600italic,700italic" rel="stylesheet" type="text/css"> + <link href="//netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.css" rel="stylesheet"> + <link 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class="highlight"><code><span class="p">{</span><span class="err">snippet:id=fieldValidatorsExample|lang=xml|javadoc=false|url=struts2/apps/showcase/src/main/webapp/WEB-INF/validation/fieldValidatorsExample.jsp</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<p><strong>Step 2</strong></p> + +<p>Create the action class</p> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=fieldValidatorsExample|javadoc=false|lang=java|url=struts2/apps/showcase/src/main/java/org/apache/struts2/showcase/validation/FieldValidatorsExampleAction.java</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<p><strong>Step 3</strong></p> + +<p>Create the validator.xml.</p> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=fieldValidatorsExample|javadoc=false|lang=xml|url=struts2/apps/showcase/src/main/resources/org/apache/struts2/showcase/validation/FieldValidatorsExampleAction-submitFieldValidatorsExamples-validation.xml</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + + </section> +</article> + + +<footer class="container"> + <div class="col-md-12"> + Copyright © 2000-2016 <a href="http://www.apache.org/";>The Apache Software Foundation </a>. + All Rights Reserved. + </div> + <div class="col-md-12"> + Apache Struts, Struts, Apache, the Apache feather logo, and the Apache Struts project logos are + trademarks of The Apache Software Foundation. + </div> + <div class="col-md-12">Logo and website design donated by <a href="https://softwaremill.com/";>SoftwareMill</a>.</div> +</footer> + +<script>!function (d, s, id) { + var js, fjs = d.getElementsByTagName(s)[0]; + if (!d.getElementById(id)) { + js = d.createElement(s); + js.id = id; + js.src = 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Added: websites/production/struts/content/core-developers/using-non-field-validators.html ============================================================================== --- websites/production/struts/content/core-developers/using-non-field-validators.html (added) +++ websites/production/struts/content/core-developers/using-non-field-validators.html Thu Jun 1 11:35:58 2017 @@ -0,0 +1,210 @@ +<!DOCTYPE html> +<html lang="en"> +<head> + <meta charset="UTF-8"/> + <meta name="viewport" content="width=device-width, initial-scale=1.0"/> + <meta name="Date-Revision-yyyymmdd" content="20140918"/> + <meta http-equiv="Content-Language" content="en"/> + <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> + + <title>Using Non Field Validators</title> + + <link href="//fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,600,700,400italic,600italic,700italic" rel="stylesheet" type="text/css"> + <link href="//netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.css" 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class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=nonFieldValidatorsExample|lang=xml|javadoc=false|url=struts2/apps/showcase/src/main/webapp/WEB-INF/validation/nonFieldValidatorsExample.jsp</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<p><strong>Step 2</strong></p> + +<p>Create the action class</p> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=nonFieldValidatorsExample|javadoc=false|lang=java|url=struts2/apps/showcase/src/main/java/org/apache/struts2/showcase/validation/NonFieldValidatorsExampleAction.java</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<p><strong>Step 3</strong></p> + +<p>Create the validator.xml.</p> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=nonFieldValidatorsExample|javadoc=false|lang=xml|url=struts2/apps/showcase/src/main/resources/org/apache/struts2/showcase/validation/NonFieldValidatorsExampleAction-submitNonFieldValidatorsExamples-validation.xml</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + + </section> +</article> + + +<footer class="container"> + <div class="col-md-12"> + Copyright © 2000-2016 <a href="http://www.apache.org/";>The Apache Software Foundation </a>. + All Rights Reserved. + </div> + <div class="col-md-12"> + Apache Struts, Struts, Apache, the Apache feather logo, and the Apache Struts project logos are + trademarks of The Apache Software Foundation. + </div> + <div class="col-md-12">Logo and website design donated by <a href="https://softwaremill.com/";>SoftwareMill</a>.</div> +</footer> + +<script>!function (d, s, id) { + var js, fjs = d.getElementsByTagName(s)[0]; + if (!d.getElementById(id)) { + js = d.createElement(s); + js.id = id; + js.src = 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============================================================================== --- websites/production/struts/content/core-developers/using-visitor-field-validator.html (added) +++ websites/production/struts/content/core-developers/using-visitor-field-validator.html Thu Jun 1 11:35:58 2017 @@ -0,0 +1,210 @@ +<!DOCTYPE html> +<html lang="en"> +<head> + <meta charset="UTF-8"/> + <meta name="viewport" content="width=device-width, initial-scale=1.0"/> + <meta name="Date-Revision-yyyymmdd" content="20140918"/> + <meta http-equiv="Content-Language" content="en"/> + <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> + + <title>Using Visitor Field Validator</title> + + <link href="//fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,600,700,400italic,600italic,700italic" rel="stylesheet" type="text/css"> + <link href="//netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.css" rel="stylesheet"> + <link href="/css/main.css" rel="stylesheet"> + <link 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class="p">{</span><span class="err">snippet:id=visitorValidatorsExample|lang=xml|javadoc=false|url=struts2/apps/showcase/src/main/webapp/WEB-INF/validation/visitorValidatorsExample.jsp</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<p><strong>Step 2</strong></p> + +<p>Create the action class.</p> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=visitorValidatorsExample|javadoc=false|lang=java|url=struts2/apps/showcase/src/main/java/org/apache/struts2/showcase/validation/VisitorValidatorsExampleAction.java</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<p><strong>Step 3</strong></p> + +<p>Create the validator.xml.</p> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=visitorValidatorsExample|javadoc=false|lang=xml|url=struts2/apps/showcase/src/main/resources/org/apache/struts2/showcase/validation/VisitorValidatorsExampleAction-submitVisitorValidatorsExamples-validation.xml</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + + </section> +</article> + + +<footer class="container"> + <div class="col-md-12"> + Copyright © 2000-2016 <a href="http://www.apache.org/";>The Apache Software Foundation </a>. + All Rights Reserved. + </div> + <div class="col-md-12"> + Apache Struts, Struts, Apache, the Apache feather logo, and the Apache Struts project logos are + trademarks of The Apache Software Foundation. + </div> + <div class="col-md-12">Logo and website design donated by <a href="https://softwaremill.com/";>SoftwareMill</a>.</div> +</footer> + +<script>!function (d, s, id) { + var js, fjs = d.getElementsByTagName(s)[0]; + if (!d.getElementById(id)) { + js = d.createElement(s); + js.id = id; + js.src = 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standards</a></li> + <li class="divider"></li> + <li><a href="/releases.html">Release Guidelines</a></li> + <li><a href="/bylaws.html">PMC Charter</a></li> + <li><a href="/volunteers.html">Volunteers</a></li> + <li><a href="https://git-wip-us.apache.org/repos/asf?p=struts.git";>Source Repository</a></li> + </ul> + </li> + <li class="apache"><a href="http://www.apache.org/";><img src="/img/apache.png"></a></li> + </ul> + </div> + </div> + </div> + </nav> +</header> + + +<article class="container"> + <section class="col-md-12"> + <a href="index.html" title="back to Core Developers Guide"><< back to Core Developers Guide</a> + <h1 id="validation-annotation">Validation Annotation</h1> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=description|javadoc=true|url=com.opensymphony.xwork2.validator.annotations.Validation</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<p>#####Usage#####</p> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=usage|javadoc=true|url=com.opensymphony.xwork2.validator.annotations.Validation</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<p>#####Parameters#####</p> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=parameters|javadoc=true|url=com.opensymphony.xwork2.validator.annotations.Validation</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<p>#####Examples#####</p> + +<p><strong>An Annotated Interface</strong></p> + +<ul> + <li> + <p>Mark the interface with @Validation()</p> + </li> + <li> + <p>Apply standard or custom annoations at method level</p> + </li> +</ul> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=example|javadoc=true|lang=java|url=com.opensymphony.xwork2.validator.annotations.Validation</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<p><strong>An Annotated Class</strong></p> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=example2|javadoc=true|lang=java|url=com.opensymphony.xwork2.validator.annotations.Validation</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<blockquote> + +</blockquote> + +<blockquote> + +</blockquote> + +<blockquote> + <p>When multiple methods are used to map different actions on the same class, and one of them is annotated with <em>@Validations</em> , those validators will be triggered for all the actions, unless they are annotated with @SkipValidation or <em>validateAnnotatedMethodOnly</em> is set to <em>true</em> in the âvalidationâ interceptor, like:</p> +</blockquote> + +<blockquote> + + <p><interceptor-ref name=âvalidationâ> + <param name=âvalidateAnnotatedMethodOnlyâ>true</param> + <param name=âexcludeMethodsâ>input,back,cancel,browse</param> +</interceptor-ref></p> + +</blockquote> + + + </section> +</article> + + +<footer class="container"> + <div class="col-md-12"> + Copyright © 2000-2016 <a href="http://www.apache.org/";>The Apache Software Foundation </a>. + All Rights Reserved. + </div> + <div class="col-md-12"> + Apache Struts, Struts, Apache, the Apache feather logo, and the Apache Struts project logos are + trademarks of The Apache Software Foundation. + </div> + <div class="col-md-12">Logo and website design donated by <a href="https://softwaremill.com/";>SoftwareMill</a>.</div> +</footer> + +<script>!function (d, s, id) { + var js, fjs = d.getElementsByTagName(s)[0]; + if (!d.getElementById(id)) { + js = d.createElement(s); + js.id = id; + js.src = "//platform.twitter.com/widgets.js"; + fjs.parentNode.insertBefore(js, fjs); + } +}(document, "script", 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+++ websites/production/struts/content/core-developers/validation-interceptor.html Thu Jun 1 11:35:58 2017 @@ -0,0 +1,204 @@ +<!DOCTYPE html> +<html lang="en"> +<head> + <meta charset="UTF-8"/> + <meta name="viewport" content="width=device-width, initial-scale=1.0"/> + <meta name="Date-Revision-yyyymmdd" content="20140918"/> + <meta http-equiv="Content-Language" content="en"/> + <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> + + <title>Validation Interceptor</title> + + <link href="//fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,600,700,400italic,600italic,700italic" rel="stylesheet" type="text/css"> + <link href="//netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.css" rel="stylesheet"> + <link href="/css/main.css" rel="stylesheet"> + <link href="/css/custom.css" rel="stylesheet"> + <link href="/highlighter/github-theme.css" rel="stylesheet"> + + <script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script> + <script 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href="/volunteers.html">Volunteers</a></li> + <li><a href="https://git-wip-us.apache.org/repos/asf?p=struts.git";>Source Repository</a></li> + </ul> + </li> + <li class="apache"><a href="http://www.apache.org/";><img src="/img/apache.png"></a></li> + </ul> + </div> + </div> + </div> + </nav> +</header> + + +<article class="container"> + <section class="col-md-12"> + <a href="index.html" title="back to Core Developers Guide"><< back to Core Developers Guide</a> + <h1 id="validation-interceptor">Validation Interceptor</h1> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=description|javadoc=true|url=com.opensymphony.xwork2.validator.ValidationInterceptor</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<p>#####Parameters#####</p> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=parameters|javadoc=true|url=com.opensymphony.xwork2.validator.ValidationInterceptor</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<p>#####Extending the Interceptor#####</p> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=extending|javadoc=true|url=com.opensymphony.xwork2.validator.ValidationInterceptor</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<p>#####Examples#####</p> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=example|lang=xml|javadoc=true|url=com.opensymphony.xwork2.validator.ValidationInterceptor</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + + </section> +</article> + + +<footer class="container"> + <div class="col-md-12"> + Copyright © 2000-2016 <a href="http://www.apache.org/";>The Apache Software Foundation </a>. + 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class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=parameters|javadoc=true|url=com.opensymphony.xwork2.validator.annotations.ValidationParameter</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<p><strong>Examples</strong></p> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=example|javadoc=true|lang=java|url=com.opensymphony.xwork2.validator.annotations.ValidationParameter</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + + </section> +</article> + + +<footer class="container"> + <div class="col-md-12"> + Copyright © 2000-2016 <a href="http://www.apache.org/";>The Apache Software Foundation </a>. + All Rights Reserved. + </div> + <div class="col-md-12"> + Apache Struts, Struts, Apache, the Apache feather logo, and the Apache Struts project logos are + trademarks of The Apache Software Foundation. + 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Manual validation in the action is also possible, and may be combined with XML and annotation-driven validation.</p> + +<p>Validation also depends on both the</p> + +<div class="highlighter-rouge"><pre class="highlight"><code>validation +</code></pre> +</div> +<p>and</p> + +<div class="highlighter-rouge"><pre class="highlight"><code>workflow +</code></pre> +</div> +<p>interceptors (both are included in the default interceptor stack). The</p> + +<div class="highlighter-rouge"><pre class="highlight"><code>validation +</code></pre> +</div> +<p>interceptor does the validation itself and creates a list of field-specific errors. The</p> + +<div class="highlighter-rouge"><pre class="highlight"><code>workflow +</code></pre> +</div> +<p>interceptor checks for the presence of validation errors: if any are found, it returns the âinputâ result (by default), taking the user back to the form which contained the validation errors.</p> + +<p>If weâre using the default settings <em>and</em> our action doesnât have an âinputâ result defined <em>and</em> there are validation (or, incidentally, type conversion) errors, weâll get an error message back telling us thereâs no âinputâ result defined for the action.</p> + +<p><strong>CONTENTS</strong></p> + +<p>####Using Annotations####</p> + +<p><a href="validation-annotation.html">Annotations</a> can be used as an alternative to XML for validation.</p> + +<p>Â </p> + +<p>####Bean Validation####</p> + +<p>With struts 2.5 comes the Bean Validation Plugin. That is an alternative to the classic struts validation described here. See the <em>Plugin Page</em> for details.</p> + +<p>####Examples####</p> + +<p>In all examples given here, the validation message displayed is given in plain English - to internationalize the message, put the string in a properties file and use a property key instead, specified by the âkeyâ attribute. It will be looked up by the framework (see <a href="localization.html">Localization</a>).</p> + +<ol> + <li> + <p><a href="basic-validation.html">Basic Validation</a></p> + </li> + <li> + <p><a href="client-side-validation.html">Client-side Validation</a></p> + </li> + <li> + <p><em>AJAX Validation</em></p> + </li> + <li> + <p><a href="using-field-validators.html">Using Field Validators</a></p> + </li> + <li> + <p><a href="using-non-field-validators.html">Using Non Field Validators</a></p> + </li> + <li> + <p><a href="using-visitor-field-validator.html">Using Visitor Field Validator</a></p> + </li> + <li> + <p><em>How do we repopulate controls when validation fails</em> (FAQ entry)</p> + </li> +</ol> + +<p>####Bundled Validators####</p> + +<p>When using a Field Validator, Field Validator Syntax is <strong>ALWAYS</strong> preferable than using the Plain Validator Syntax as it facilitates grouping of field-validators according to fields. This is very handy especially if a field needs to have many field-validators which is almost always the case.</p> + +<table> + <tbody> + <tr> + </tr> + </tbody> +</table> + +<ol> + <li> + <p><a href="conversion-validator.html">conversion validator</a></p> + </li> + <li> + <p><a href="date-validator.html">date validator</a></p> + </li> + <li> + <p><a href="double-validator.html">double validator</a></p> + </li> + <li> + <p><a href="email-validator.html">email validator</a></p> + </li> + <li> + <p><a href="expression-validator.html">expression validator</a></p> + </li> + <li> + <p><a href="fieldexpression-validator.html">fieldexpression validator</a></p> + </li> + <li> + <p><a href="int-validator.html">int validator</a></p> + </li> + <li> + <p><a href="regex-validator.html">regex validator</a></p> + </li> + <li> + <p><a href="required-validator.html">required validator</a></p> + </li> + <li> + <p><a href="requiredstring-validator.html">requiredstring validator</a></p> + </li> + <li> + <p><a href="short-validator.html">short validator</a></p> + </li> + <li> + <p><a href="stringlength-validator.html">stringlength validator</a></p> + </li> + <li> + <p><a href="url-validator.html">url validator</a></p> + </li> + <li> + <p><a href="visitor-validator.html">visitor validator</a></p> + </li> + <li> + <p><a href="conditionalvisitor-validator.html">conditionalvisitor validator</a></p> + </li> +</ol> + +<p>####Registering Validators####</p> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=javadoc|javadoc=true|url=com.opensymphony.xwork2.validator/ValidatorFactory.java</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> +<p>The following list shows the default validators included in the framework and is an example of the syntax used to declare our own validators.</p> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:lang=xml|url=struts2/core/src/main/resources/com/opensymphony/xwork2/validator/validators/default.xml</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<p>The validators.xml used to reference a DTD hosted by Opensymphony, the original location of the XWork project. Since the the move to Apache Struts, DTDs were changed. Please ensure in your projects to include the DTD header as described in the examples found here</p> + +<table> + <tbody> + <tr> + </tr> + </tbody> +</table> + +<p>The validators.xml containing custom validators needs to contain a copy of the default validators. No DTD was used in validators.xml. See: <a href="http://struts\.apache\.org/2\.x/docs/release\-notes\-208\.html\#ReleaseNotes2\.0\.8\-MigrationfrompreviousReleases";>http://struts.apache.org/2.x/docs/release-notes-208.html#ReleaseNotes2.0.8-MigrationfrompreviousReleases</a></p> + +<table> + <tbody> + <tr> + </tr> + </tbody> +</table> + +<p>####Turning on Validation####</p> + +<p>The default interceptor stack, âdefaultStackâ, already has validation turned on. When creating your own interceptor-stack be sure to include <strong>both</strong> the</p> + +<div class="highlighter-rouge"><pre class="highlight"><code>validation +</code></pre> +</div> +<p>and</p> + +<div class="highlighter-rouge"><pre class="highlight"><code>workflow +</code></pre> +</div> +<p>interceptors. From</p> + +<div class="highlighter-rouge"><pre class="highlight"><code>struts-default.xml +</code></pre> +</div> +<p>:</p> + +<div class="highlighter-rouge"><pre class="highlight"><code><interceptor-stack name="defaultStack"> + ... + <interceptor-ref name="validation"> + <param name="excludeMethods">input,back,cancel,browse</param> + </interceptor-ref> + <interceptor-ref name="workflow"> + <param name="excludeMethods">input,back,cancel,browse</param> + </interceptor-ref> +</interceptor-stack> + +</code></pre> +</div> + +<p>Beginning with version 2.0.4 Struts provides an extension to XWorkâs</p> + +<div class="highlighter-rouge"><pre class="highlight"><code>com.opensymphony.xwork2.validator.ValidationInterceptor +</code></pre> +</div> +<p>interceptor.</p> + +<div class="highlighter-rouge"><pre class="highlight"><code><interceptor name="validation" class="org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor"/> + +</code></pre> +</div> + +<p>This interceptor allows us to turn off validation for a specific method by using the</p> + +<div class="highlighter-rouge"><pre class="highlight"><code>@org.apache.struts2.interceptor.validation.SkipValidation +</code></pre> +</div> +<p>annotation on the action method.</p> + +<p>####Validator Scopes####</p> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=fieldValidators|javadoc=true|url=com.opensymphony.xwork2.validator/ValidatorFactory.java</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=nonFieldValidators|javadoc=true|url=com.opensymphony.xwork2.validator/ValidatorFactory.java</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<p>#####Notes#####</p> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=validatorsNote|javadoc=true|url=com.opensymphony.xwork2.validator/ValidatorFactory.java</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<p>####Defining Validation Rules####</p> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=validationRules1|javadoc=true|url=com.opensymphony.xwork2.validator/ValidatorFactory.java</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=exValidationRules1|lang=xml|javadoc=true|url=com.opensymphony.xwork2.validator/ValidatorFactory.java</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=validationRules2|javadoc=true|url=com.opensymphony.xwork2.validator/ValidatorFactory.java</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<p>In this context, âAction Aliasâ refers to the action name as given in the Struts configuration. Often, the name attribute matches the method name, but they may also differ.</p> + +<table> + <tbody> + <tr> + </tr> + </tbody> +</table> + +<p>####Localizing and Parameterizing Messages####</p> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=validationRules3|javadoc=true|url=com.opensymphony.xwork2.validator/ValidatorFactory.java</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=exValidationRules3|javadoc=true|lang=xml|url=com.opensymphony.xwork2.validator/ValidatorFactory.java</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=validationRules4|javadoc=true|url=com.opensymphony.xwork2.validator/ValidatorFactory.java</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=exValidationRules4|javadoc=true|lang=xml|url=com.opensymphony.xwork2.validator/ValidatorFactory.java</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<p>####Validator Flavor####</p> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=validatorFlavours|javadoc=true|url=com.opensymphony.xwork2.validator/Validator.java</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<p>####Non-Field Validator Vs Field-Validator validatortypes####</p> + +<p>There are two ways you can define validators in your -validation.xml file:</p> + +<ol> + <li> + <validator> + +</validator> + </li> + <li> + <field-validator> + +</field-validator> + </li> +</ol> +<p>Keep the following in mind when using either syntax:</p> + +<p>Non-Field-Validator: The <validator> element allows you to declare both types of validators (either a plain Validator a field-specific FieldValidator).</p> + +<div class="highlighter-rouge"><pre class="highlight"><code><validator type="expression> + <param name="expression">foo gt bar</param> + <message>foo must be great than bar.</message> +</validator> + +</code></pre> +</div> + +<div class="highlighter-rouge"><pre class="highlight"><code><validator type="required"> + <param name="fieldName">bar</param> + <message>You must enter a value for bar.</message> +</validator> + +</code></pre> +</div> + +<p><strong>field-validator</strong>: The <field-validator> elements are basically the same as the <validator> elements except that they inherit the fieldName attribute from the enclosing <field> element. FieldValidators defined within a <field-validator> element will have their fieldName automatically filled with the value of the parent <field> elementâs fieldName attribute. The reason for this structure is to conveniently group the validators for a particular field under one element, otherwise the fieldName attribute would have to be repeated, over and over, for each individual <validator>.</p> + +<table> + <tbody> + <tr> + <td>It is always better to defined field-validator inside a <field> tag instead of using a <validator> tag and supplying fieldName as its param as the xml code itself is clearer (grouping of field is clearer)</td> + </tr> + </tbody> +</table> + +<table> + <tbody> + <tr> + </tr> + </tbody> +</table> + +<p>Note that you should only use FieldValidators (not plain Validators) within a block. A plain Validator inside a <field> will not be allowed and would generate error when parsing the xml, as it is not allowed in the defined dtd (xwork-validator-1.0.2.dtd)</p> + +<table> + <tbody> + <tr> + </tr> + </tbody> +</table> + +<p>Declaring a FieldValidator using the <field-validator> syntax:</p> + +<div class="highlighter-rouge"><pre class="highlight"><code><field name="email_address"> + <field-validator type="required"> + <message>You cannot leave the email address field empty.</message> + </field-validator> + <field-validator type="email"> + <message>The email address you entered is not valid.</message> + </field-validator> +</field> + +</code></pre> +</div> + +<p>The choice is yours. Itâs perfectly legal to only use elements without the elements and set the fieldName attribute for each of them. The following are effectively equal:</p> + +<div class="highlighter-rouge"><pre class="highlight"><code><field name="email_address"> + <field-validator type="required"> + <message>You cannot leave the email address field empty.</message> + </field-validator> + <field-validator type="email"> + <message>The email address you entered is not valid.</message> + </field-validator> +</field> + +<validator type="required"> + <param name="fieldName">email_address</param> + <message>You cannot leave the email address field empty.</message> +</validator> +<validator type="email"> + <param name="fieldName">email_address</param> + <message>The email address you entered is not valid.</message> +</validator> + +</code></pre> +</div> + +<p>####Short-Circuiting Validator####</p> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=shortCircuitingValidators1|javadoc=true|url=com.opensymphony.xwork2.validator/Validator.java</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=exShortCircuitingValidators|lang=xml|javadoc=true|url=com.opensymphony.xwork2.validator/Validator.java</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=shortCircuitingValidators2|javadoc=true|url=com.opensymphony.xwork2.validator/Validator.java</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=scAndValidatorFlavours1|1=javadoc|javadoc=true|url=com.opensymphony.xwork2.validator/Validator.java</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=exScAndValidatorFlavours|lang=xml|javadoc=true|url=com.opensymphony.xwork2.validator/Validator.java</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=scAndValidatorFlavours2|1=javadoc|javadoc=true|url=com.opensymphony.xwork2.validator/Validator.java</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<p>####How Validators of an Action are Found####</p> + +<div class="highlighter-rouge"><pre class="highlight"><code><span class="p">{</span><span class="err">snippet:id=howXworkFindsValidatorForAction|javadoc=true|url=com.opensymphony.xwork2.validator/Validator.java</span><span class="p">}</span><span class="w"> +</span></code></pre> +</div> + +<p>####Writing custom validators####</p> + +<p>If you want to write custom validator use on of these classes as a starting point:</p> + +<ul> + <li> + <p>com.opensymphony.xwork2.validator.validators.ValidatorSupport</p> + </li> + <li> + <p>com.opensymphony.xwork2.validator.validators.FieldValidatorSupport</p> + </li> + <li> + <p>com.opensymphony.xwork2.validator.validators.RangeValidatorSupport</p> + </li> + <li> + <p>com.opensymphony.xwork2.validator.validators.RepopulateConversionErrorFieldValidatorSupport</p> + </li> +</ul> + +<p>####Resources####</p> + +<p><a href="http://today\.java\.net/pub/a/today/2006/01/19/webwork\-validation\.html";>WebWork Validation</a>^[http://today.java.net/pub/a/today/2006/01/19/webwork-validation.html]</p> + + </section> +</article> + + +<footer class="container"> + <div class="col-md-12"> + Copyright © 2000-2016 <a href="http://www.apache.org/";>The Apache Software Foundation </a>. + All Rights Reserved. + </div> + <div class="col-md-12"> + Apache Struts, Struts, Apache, the Apache feather logo, and the Apache Struts project logos are + trademarks of The Apache Software Foundation. + </div> + <div class="col-md-12">Logo and website design donated by <a href="https://softwaremill.com/";>SoftwareMill</a>.</div> +</footer> + +<script>!function (d, s, id) { + var js, fjs = d.getElementsByTagName(s)[0]; 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