ViralPatel.net

Create a Struts project

Create Form Beans

package net.viralpatel.struts.validation.form;

import org.apache.struts.validator.ValidatorForm;

public class CustomerForm extends ValidatorForm {
 
 private String name;
 private String telephone;
 private String email;
 private int age;

 public String getName() {
  return name;
 }

 public void setName(String name) {
  this.name = name;
 }

 public String getTelephone() {
  return telephone;
 }

 public void setTelephone(String telephone) {
  this.telephone = telephone;
 }

 public String getEmail() {
  return email;
 }

 public void setEmail(String email) {
  this.email = email;
 }

 public int getAge() {
  return age;
 }

 public void setAge(int age) {
  this.age = age;
 }
}
Code language: Java (java)

Add Validator Plug-in in struts-config.xml

<!-- Validator Configuration -->
<plug-in className="org.apache.struts.validator.ValidatorPlugIn">
 <set-property >Define validations for the form</h2>
<img src="//www.viralpatel.net/app/uploads/validation-xml-file-struts-validator-framework.png" alt="validation.xml file struts validator framework" title="validation-xml-file-struts-validator-framework" width="166" height="151" class="aligncenter size-full wp-image-687" />

Create a file validation.xml in your applications WEB-INF directory. And copy following content in it.
<!-- wp:code {"language": "xml"} --><pre class="wp-block-code"><code></code></pre><!-- /wp:code -->
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE form-validation PUBLIC
          "-//Apache Software Foundation//DTD Commons Validator Rules Configuration 1.1.3//EN"
          "http://jakarta.apache.org/commons/dtds/validator_1_1_3.dtd">
<form-validation>
<global>
 <constant>
 <constant-name>telephoneFormat</constant-name>
 <constant-value>^\d{5,10}$</constant-value>
 </constant>
</global>
<formset>
 <form name="CustomerForm">
  <field >Struts-config.xml entry for the action</h2>
Following is the entry in struts-config.xml file which maps the Action to our Validator form.
<!-- wp:code {"language": "xml"} --><pre class="wp-block-code"><code></code></pre><!-- /wp:code -->
<form-beans>
 <form-bean name="CustomerForm"
  type="net.viralpatel.struts.validation.form.CustomerForm" />
</form-beans>
...
...
...
<action-mappings>
...
 <action path="/customer" name="CustomerForm" validate="true"
  input="/index.jsp"
  type="net.viralpatel.struts.validation.action.CustomerAction">
  <forward name="success" path="/Customer.jsp" />
  <forward name="failure" path="/index.jsp" />
 </action>
...
</action-mappings>
Code language: HTML, XML (xml)

Configuring ApplicationResources.properties

label.name= Name
label.email= Email
label.telephone= Telephone
label.age= Age


# general error msgs
errors.header=<font size="2"><UL>
errors.prefix=<LI><span style="color: red">
errors.suffix=</span></LI>
errors.footer=</UL></font>
errors.invalid={0} is invalid.
errors.maxlength={0} can not be greater than {1} characters.
errors.minlength={0} can not be less than {1} characters.
errors.range={0} is not in the range {1} through {2}.
errors.required={0} is required.
errors.byte={0} must be an byte.
errors.date={0} is not a date.
errors.double={0} must be an double.
errors.float={0} must be an float.
errors.integer={0} must be an integer.
errors.long={0} must be an long.
errors.short={0} must be an short.
Code language: HTML, XML (xml)

Create JSP to display the form

Code language: HTML, XML (xml)