Struts 2 Date Format Examples
In this tutorial you will learn about Date Format function in Struts 2. We
have provided fully tested example code to illustrate the concepts. You can copy
the code and use it for your fast development.
Struts Date tag
Struts date tag is used to output the date into required format. It can be
used to format the date into several different formats. Syntax of the date tag
is:
<s:date name="todayDate" format="yyyy-MM-dd" />
Parameters
Following table shows the parameters of date tag.
| Name |
Required |
Default |
Evaluated |
Type |
Description |
| format |
false |
|
false |
String |
The date format pattern |
| id |
false |
|
true |
String |
It will be used id tag in the HTML |
| name |
true |
|
true |
String |
The date value which is to be formatted |
| nice |
false |
false |
true |
Boolean |
Whether to print out the date nicely |
The nice format is very interesting. The following table shows,
how it
will format the date output:
| i18n key |
default |
| struts.date.format.past |
{0} ago |
| struts.date.format.future |
in {0} |
| struts.date.format.seconds |
an instant |
| struts.date.format.minutes |
{0,choice,1#one minute|1<{0} minutes} |
| struts.date.format.hours |
{0,choice,1#one hour|1<{0} hours}{1,choice,0#|1#, one minute|1<,
{1} minutes} |
| struts.date.format.days |
{0,choice,1#one day|1<{0} days}{1,choice,0#|1#, one hour|1<, {1}
hours} |
| struts.date.format.years |
{0,choice,1#one year|1<{0} years}{1,choice,0#|1#, one day|1<,
{1} days} |
Writing Example
In this example we will use DateBean action class to get the current date of
the system. This current date will be used in our example. Here is the code of DateBean.java
package net.roseindia;
import com.opensymphony.xwork2.ActionSupport;
import java.util.Date;
/**
* <p> Validate a user login. </p>
*/
public class DateBean extends ActionSupport {
public String execute() throws Exception {
setTodayDate(new Date());
return SUCCESS;
}
// ---- Username property ----
/**
* <p>Field to store Today's Date.</p>
* <p/>
*/
private Date todayDate;
/**
* <p>Provide Today's Date.</p>
*
* @return Returns the Todays date.
*/
public Date getTodayDate() {
return todayDate;
}
/**
* <p>Store new Date</p>
*
* @param value The username to set.
*/
public void setTodayDate(Date value) {
todayDate = value;
}
}
|
Add the following entry in the struts.xml file in order
to create action mapping:
<action name="FormatDate" class="net.roseindia.DateBean">
<result>/pages/dateformat.jsp</result>
</action>
Following jsp file(dateformat.jsp) shows the
usage of date tag:
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
<head>
<title>Struts 2 Format Date Example!</title>
<link href="<s:url value="/css/main.css"/>" rel="stylesheet"
type="text/css"/>
</head>
<body>
<s:form action="FormatDate" method="POST">
<tr>
<td>Date in (yyyy-MM-dd) Format:</td>
<td>
<b><s:date name="todayDate" format="yyyy-MM-dd" /></b>
</td>
</tr>
<tr>
<td>Date in (MM/dd/yyyy hh:mm AM/PM) Format:</td>
<td>
<b><s:date name="todayDate" format="MM/dd/yyyy 'at' hh:mm a" /></b>
</td>
</tr>
<tr>
<td>Date in (dd-MMM-yyyy hh:mm AM/PM) Format:</td>
<td>
<b><s:date name="todayDate" format="dd-MMM-yyyy 'at' hh:mm a" /></b>
</td>
</tr>
<tr>
<td>Date in (dd/MM/yyyy hh:mm) Format:</td>
<td>
<b><s:date name="todayDate" format="dd/MM/yyyy hh:mm" /></b>
</td>
</tr>
<tr>
<td>Nice Format:</td>
<td>
<b><s:date name="todayDate" format="yyyy-MM-dd" nice="true"/></b>
</td>
</tr>
</s:form>
</body>
</html>
|
Output of the program:
In this section you learnt how to use Struts 2 Date
format tag.
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Current Comments
3 comments so far (post your own) View All Comments Latest 10 Comments:Hi Mike,
Please try that::
<field property="dateQuery" depends="required,date">
<arg0 key="errors.fieldFormat"/>
<var><var-name>datePatternStrict</var-name><var-value>dd/MM/yyyy</var-value></var>
</field>
<!-- Also you can try that way too -->
<field property="dateQuery" depends="mask">
<msg name="mask" key="errors.fieldFormat"/>
<var>
<var-name>mask</var-name>
<var-value>^0[0-9]{9}</var-value>
</var>
</field>
Posted by Sohel Taslim on Monday, 03.31.08 @ 15:10pm | #54859
hello i wanna validate a date as dd/MM/yyyy
i tried to put in my validation.xml
<field name="dateQuery">
<field-validator type="regex">
<param name="expression">
[0-9][0-9]/[0-9][0-9]/[1-9][0-9][0-9][0-9]
</param>
<message key="errors.fieldFormat" />
</field-validator>
but no message appear!!!!
how can i do
</field>
Posted by Mike on Tuesday, 03.11.08 @ 17:31pm | #52301
Thanks a lot.
You saved my time.
Posted by Sohel Taslim on Monday, 12.3.07 @ 10:13am | #41157