agelist.java

来自「webwork source」· Java 代码 · 共 59 行

/*
 * WebWork, Web Application Framework
 *
 * Distributable under Apache license.
 * See terms of license at opensource.org
 */
package webwork.examples;

import webwork.action.ActionSupport;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

/**
 *	A list of ages
 *      
 *	@see <related>
 *	@author Rickard 謆erg (<email>)
 *	@version $Revision: 1.4 $
 */
public class AgeList
   extends ActionSupport
{
   // Attributes ----------------------------------------------------
   static List ages;
   
   static
   {
      // This never changes, so we do it once only
      ages = new ArrayList();
      
      // We read the values from a file so that it is easy to change
      try
      {
         InputStream resource = AgeList.class.getResourceAsStream("ages.txt");
         BufferedReader in = new BufferedReader(new InputStreamReader(resource));
         String age;
         while ((age = in.readLine()) != null)
            ages.add(age);
         in.close();   
      } catch (IOException e)
      {
         e.printStackTrace(System.err);
         System.err.println("Could not read list of ages");
         ages.add("0-100"); // Default so we at least get something
      }
   }
   
   // Public --------------------------------------------------------
   public List getAges()
   {
      return ages;
   }
}