Dinesh on Java: Struts 2 Text Tag Example

The text tag is a generic tag that is used to render a I18n text message. The message must be in a resource bundle with the same name as the action that it is associated with. In practice this means that you should create a properties file in the same package as your Java class with the same name as your class, but with .properties extension.

The text tag is a generic tag that is used to render a I18n text message. Follow one of the three steps:

The message must be in a resource bundle with the same name as the action that it is associated with. In practice this means that you should create a properties file in the same package as your Java class with the same name as your class, but with .properties extension.
If the named message is not found, then the body of the tag will be used as default message.
If no body is used, then the name of the message will be used.

Let us check the following example to understand the usage of text tag:
Create action classes:

package com.dineshonjava.struts2.action;

import com.opensymphony.xwork2.ActionSupport;

/**
 * @author Dinesh Rajput
 *
 */
public class DataTagAction extends ActionSupport {

 private static final long serialVersionUID = -7744420104547018874L;
 private String name;
 
 public String execute() {
  return SUCCESS;
 }

 public String getName() {
  return name;
 }

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

Create views
Let us have success.jsp with the following content:

<%@ page contentType="text/html; charset=UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<html>
<head>
<STYLE type="text/css">

b{color: blue;}

</STYLE>
<title>Text Data Tag Struts2 | dineshonjava.com</title>
</head>
<body>
   <h1><span style="background-color: #FFFFcc">Text Data Tags Example!</span></h1>
   <b><s:i18n name="HelloWorldAction">
     <s:text name="name.success"/><br>
     <s:text name="name.xyz">Message doesn't exists</s:text><br>
     <s:text name="name.msg.param">
        <s:param >DINESH</s:param>
   </s:text>
</s:i18n></b>
</body>
</html>

Configuration Files
Let us create a property file with the same name as of your action class package name. So in this case we will create myapp.properties file and keep in the class path:

label.username = User Name
label.submit = Submit
name.success = This is success message
name.msg.param = The param example - param : {0}

struts.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!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.enable.DynamicMethodInvocation" value="false" />
    <constant name="struts.devMode" value="false" />
    <constant name="struts.custom.i18n.resources" value="myapp" />
 
 <package name="default" extends="struts-default" namespace="/">
        <action name="texttag" class="com.dineshonjava.struts2.action.DataTagAction">
            <result name="success">/success.jsp</result>
        </action>
    </package>
 </struts>

web.xml should look like:

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>Struts2DataTag</display-name>
 <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>

Right click on the project name and click Export > WAR File to create a War file. Then deploy this WAR in the Tomcat's webapps directory. Finally, start Tomcat server and try to access

URL http://localhost:8080/doj/texttag.

This will give you following screen:

Download Source Code
TextDataTagExample.zip

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