The <fmt: message> tag maps key to localized message to return the value using the resource bundle specified in the bundle attribute.
Syntax Of <fmt: message> Tag
[code lang=”html”] <fmt: message attributes> body content </fmt: message>[/code]
Attributes Of <fmt: message> Tag
| Attributes | Description |
|---|---|
| key | It is used for specifying the key whose value which we want to display. |
| bundle | Specifies the resource bundle that is used to get the value of the specified key. |
| var | Specifies the variable name to store the retrieved message . |
| scope | The Scope into which the variable has to be set. |
Example
Listing 1:Message .java
[code lang=”java”] package javabeat.net;import java.util.ListResourceBundle;
public class Message extends ListResourceBundle
{
public Object[ ][ ] getContents()
{
return contents;
}
static final Object[ ][ ] contents =
{
{"color.blue", "blue"},
{"color.pink", "pink"},
{"color.yellow", "yellow"},
};
}
[/code]
Details of the Code
ListResourceBundle is used to manage the list of values. The class Message extends the ListResourceBundle to get list of values by using getContent method.
Listing 2:example.jsp
[code lang=”html”] <%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %><html>
<head>
<title>Message tag</title>
</head>
<body>
<fmt:setBundle basename="javabeat.net.Message" var="lang"/>
<fmt:message key="color.blue" bundle="${lang}"/><br/>
<fmt:message key="color.pink" bundle="${lang}"/><br/>
<fmt:message key="color.yellow" bundle="${lang}"/><br/>
</body>
</html>
[/code]
Details of the Code
- <%@ taglib uri=”http://java.sun.com/jsp/jstl/fmt” prefix=”fmt” %> tag is used for formatting the data in jsp page.
- <fmt: message> tag with key attribute is used to display the specified message.
- bundle is used to get the value of specified key
Steps for Execution
- Save this file as example.jsp in your eclipse IDE.
- Now select this jsp file, right mouse click and select Run as ->Run on server
Output
When the execution process is completed successfully we will get the following output :
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