Today i am sharing my demo example for struts2 validation for integer
value only.suppose you have a requirement to pass only integer value in
the server so these example will help you a lot.
I am going to demonstrate the example step by step.
1. Create your default web project directory structure in your IDE.
2. Open the web.xml file and do filterdispatcher entry in it.
3. Now create a struts.xml file in your src folder.
5.Now create a one Struts2 Action class named “IntegerValidation”.
Now deploy your application and run the following URL at your browser
Thanks to visit.
I am going to demonstrate the example step by step.
1. Create your default web project directory structure in your IDE.
2. Open the web.xml file and do filterdispatcher entry in it.
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.FilterDispatcher
</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
3. Now create a struts.xml file in your src folder.
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<constant name="struts.devMode" value="true" />
<package name="struts2" extends="struts-default" namespace="/">
<action name="integerAction">
<result name="success">/integer.jsp</result>
<result name="input">/integer.jsp</result>
</action>
<action name="displayInteger">
<result name="success">/integer.jsp</result>
</action>
</package>
</struts>
4. Now create the validation xml file . please remember that validation xml file name should be same as your action name.here my validation xml file name is “IntegerValidation-validation.xml”.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE validators PUBLIC "-//OpenSymphony Group//XWork Validator 1.0.2//EN"
"http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd">
<validators>
<validator type="regex">
<param name="fieldName">integerValue</param>
<param name="expression">\d+</param>
<message>Only Numberic Value Allowed</message>
</validator>
</validators>
5.Now create a one Struts2 Action class named “IntegerValidation”.
package com.example.actions;
import com.opensymphony.xwork2.ActionSupport;
public class IntegerValidation extends ActionSupport {
private String integerValue;
public String execute() {
System.out.println("I m calling");
return SUCCESS;
}
public String getIntegerValue() {
return integerValue;
}
public void setIntegerValue(String integerValue) {
this.integerValue = integerValue;
}
}
6. Now create the one jsp file named “integer.jsp”
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type"
content="text/html; charset=ISO-8859-1">
<s:head theme="ajax" />
<title>Integer Validation Test</title>
</head>
<body>
<s:fielderror />
<s:form action="integerAction" method="post" validate="true" namespace="/">
<s:textfield key="integerValue" label="Zip Code" labelposition="left"
cssStyle="size: 15" required="true" name="integerValue"></s:textfield>
<s:submit value="Validate Integer Only"/>
</s:form>
</body>
</html>
Now deploy your application and run the following URL at your browser
http://localhost:8080/YourProjectName/displayInteger
If you have any problem in this example so please free feel to ask.Thanks to visit.
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