Struts2 Date Validation Example

The date validator checks that given date is witin the specified range.

Parameters of date validator

There is 3 parameters defined for date validator.

Parameter	Description
fieldName	specifies the field name that is to be validated. It is required in Plain-Validator only.
min	specifies the minimum range. It is ignored bydefault.
max	specifies the maximum range. It is ignored bydefault.

Example of date validator

1. <validators>  
2.   <!-- Plain Validator syntax -->  
3.          <validator type="date">  
4.       <param name="fieldName">dob</param>  
5.           <param name="min">01/01/1980</param>  
6.           <param name="max">01/01/2010</param>  
7.           <message>Date of Birth must be within ${min} and ${max}</message>  
8.     </validator>      
9. </validators>  

1. <validators>  
2.    <!-- Field Validator Syntax -->  
3.       <field name="dob">  
4.         <field-validator type="date">  
5.             <param name="min">01/01/1980</param>  
6.               <param name="max">01/01/2010</param>  
7.               <message>Date of Birth must be within ${min} and ${max}</message>  
8.         </field>  
9.       </field>  
10.   
11. </validators>  

Full example of date validator

1) Create index.jsp for input

This jsp page creates a form using struts UI tags. It receives name, password and email id from the user.

index.jsp

1. <%@ taglib uri="/struts-tags" prefix="s" %>  
2.   
3. <s:form action="register">  
4. <s:textfield name="dob" label="Date of Birth"></s:textfield>  
5. <s:submit value="register"></s:submit>  
6. </s:form>  

2) Create the action class

This action class inherits the ActionSupport class and overrides the execute method.

RegisterAction.java

1. package com.javatpoint;  
2.   
3. import java.util.Date;  
4.   
5. import com.opensymphony.xwork2.ActionSupport;  
6.   
7. public class Register extends ActionSupport{  
8. private Date dob;  
9.   
10.   
11. public Date getDob() {  
12.     return dob;  
13. }  
14.   
15.   
16. public void setDob(Date dob) {  
17.     this.dob = dob;  
18. }  
19.   
20.   
21. public String execute(){  
22.     return "success";  
23. }  
24.   
25. }  

3) Create the validation file

Here, we are using bundled validators to perform the validation.

Register-validation.xml

1. <?xml version="1.0" encoding="UTF-8"?>  
2.   
3.   <!DOCTYPE validators PUBLIC   
4.         "-//OpenSymphony Group//XWork Validator 1.0.2//EN"   
5.         "http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd">  
6.   
7.         <validators>  
8.           
9.         <field name="dob">  
10.         <field-validator type="date">  
11.         <param name="min">01/01/1950</param>  
12.         <param name="max">01/01/2010</param>  
13.           
14.         <message>Date of Birth must be between ${min} to ${max}</message>  
15.         </field-validator>  
16.         </field>  
17.           
18.           
19.         </validators>  

4) Create struts.xml

This xml file defines an extra result by the name input, and an interceptor jsonValidatorWorkflowStack.

struts.xml

1. <?xml version="1.0" encoding="UTF-8" ?>  
2. <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">  
3. <struts>  
4.   
5. <package name="default" extends="struts-default">  
6. <action name="register" class="com.javatpoint.Register">  
7. <result name="input">index.jsp</result>  
8. <result>welcome.jsp</result>  
9. </action>  
10. </package>  
11.   
12. </struts>      
13.      
14.    

5) Create view component

It is the simple jsp file displaying the information of the user.

welcome.jsp

1. <%@ taglib uri="/struts-tags" prefix="s" %>  
2.   
3. Date of Birth:<s:property value="dob"/>  

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