Struts 2 - The text tags

Advertisements


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.tutorialspoint.struts2;

public class HelloWorldAction{
   private String name;

   public String execute() throws Exception {
      return "success";
   }
   
   public String getName() {
      return name;
   }

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

Create views

Let us have HelloWorld.jsp with the following content:

<%@ 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>
<title>Text Tag Example</title>
</head>
<body>
	
<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 >ZARA</s:param>
   </s:text>
</s:i18n>

</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 HelloWorldAction.properties file and keep in the class path:

name.success = This is success message
name.msg.param = The param example - param : {0}

Your struts.xml should look like:

<?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.devMode" value="true" />
   <constant name="struts.custom.i18n.resources" 
             value="ApplicationResources"/>
   
   <package name="helloaction" extends="struts-default">
      <action name="hello" 
            class="com.tutorialspoint.struts2.HelloWorldAction" 
            method="execute">
         <result name="success">/HelloWorld.jsp</result>
      </action>
   </package>
</struts>

Your 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>Struts 2</display-name>
   <welcome-file-list>
      <welcome-file>index.jsp</welcome-file>
   </welcome-file-list>
   <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>
</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/HelloWorldStruts2/hello.action. This will give you following screen:

Struts text tag


Advertisements
Advertisements