Use URL resources within an application

 

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Overview

J2EE applications can use URLs by looking up references to logically named URL connection factories through the...

java:comp/env/url

...subcontext, which is declared in the application deployment descriptor and mapped to installation specific URL resources. As in the case of other J2EE resources, this can be done in order to eliminate the need for the application to hard code references to external resources. The process is the same used with other J2EE resources, such as JDBC objects and JavaMail sessions.

 

Procedure

1. Develop an application that relies on naming features.

2. Define resource references while assembling your application.

   A URL resource that uses a built-in protocol, such as HTTP, FTP, or file, can use the default URL provider. URL resources that use other protocols need to use a custom URL provider.

3. Configure your URL resources within an application.

   1. Open the administrative console.

   2. Click...

      Resources | URL Providers | URL_provider | URLs

4. Optional: Configure URL providers and URLs within an application client using the ACRCT.

5. Manage URL providers and URL resources used by the deployed application. To update or remove existing URL configurations:

   1. Open the administrative console.

   2. Click...

      Resources | URL Providers | URL Provider | URLs | URL

   3. Modify the URL properties.

   4. Click Apply or OK.

6. To remove URL providers and URLs, after step 2, Click URL_provider > URLs. Select the URL you want to remove and click Delete. Then, click Apply or OK.

 

See also

URLs
URL provider collection
URL provider settings
URL configuration collection
URL configuration settings
URLs: Resources for learning

 

Related Tasks

Assembling applications
Configuring new URLs with the Application Client Resource Configuration Tool
Configuring new URL providers for application clients

 

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