bean:message
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| < Day Day Up > |
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<bean:message />
The <bean:message /> tag is a very useful tag that we can employ to retrieve keyed values from a previously defined resource bundle. It also supports the ability to include parameters that can be substituted for defined placeholders in the retrieved string. The <bean:message /> tag has no body and supports 11 attributes, described in Table 20.5.
| Attribute | Description |
|---|---|
| arg0 | Contains the first parametric replacement value. (Optional) |
| arg1 | Contains the second parametric replacement value. (Optional) |
| arg2 | Contains the third parametric replacement value. (Optional) |
| arg3 | Contains the fourth parametric replacement value. (Optional) |
| arg4 | Contains the fifth parametric replacement value. (Optional) |
| bundle | Specifies the name of the bean under which messages are stored. This bean is stored in the ServletContext. If the bundle is not included, the default value of the Action.MESSAGES_KEY is used. This attribute is an optional request-time attribute. If you use the ActionServlet to manage your resource bundles, you can ignore this attribute. (Optional) |
| key | Identifies the unique key that is used to retrieve a message from a previously defined resource bundle. (Optional) |
| locale | Specifies the session bean that references the requesting client's locale. If the bundle is not included, the default value of Action.LOCALE_KEY is used. (Optional) |
| name | Specifies the name of the object whose data member is being retrieved. If the property attribute is not specified, then the value of this bean itself will be used as the message resource key. (Optional) |
| property | Specifies the name of the property to be accessed on the bean identified by the name attribute. If this attribute is not specified, then the value of the bean identified by the name attribute will be used as the message resource key. (Optional) |
| scope | Identifies the scope of the bean specified by name attribute. If the scope attribute is not specified, then the tag will search for the bean in the scopes, in the order of page, request, session, and application. (Optional) |
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We used this tag throughout Chapter 9, "Internationalizing Your Struts Applications."
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The following code snippet contains a simple example of using the <bean:message /> tag:
<html> <head> <title><bean:message key="app.title"/></title> </head> <body> </body> </html>
In this example, we are retrieving the value stored in the resource bundle that is referenced by the key app.title. This retrieved value will be substituted for the occurrence of this <bean:message /> tag. The result is a JSP that will have an HTML <title> that matches the locale of the requesting client.
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| < Day Day Up > |
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EAN: 2147483647
Pages: 183