Java中的国际化,第二部分

package je3.i18n;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.Locale;
import java.util.ResourceBundle;
import java.util.MissingResourceException;

/** A convenience class to automatically create localized menu panes */
public class SimpleMenu {
 /** The convenience method that creates menu panes */
 public static JMenu create(ResourceBundle bundle,
    String menuname, String[] itemnames,
    ActionListener listener)
 {
 // Get the menu title from the bundle. Use name as default label.
 String menulabel;
 try { menulabel = bundle.getString(menuname + ".label"); }
 catch(MissingResourceException e) { menulabel = menuname; }

 // Create the menu pane.
 JMenu menu = new JMenu(menulabel);

 // For each named item in the menu.
 for(int i = 0; i < itemnames.length; i++) {
  // Look up the label for the item, using name as default.
  String itemlabel;
  try {
  itemlabel =
   bundle.getString(menuname+"."+itemnames[i]+".label");
  }
  catch (MissingResourceException e) { itemlabel = itemnames[i]; }

  JMenuItem item = new JMenuItem(itemlabel);

  // Look up an accelerator for the menu item
  try {
  String acceleratorText =
   bundle.getString(menuname+"."+itemnames[i]+".accelerator”); //绿色为新加
bundle.getString(menuname+"."+itemnames[i]+".accelerator");//这一行好像有问题.
             //应该是删除此行,将上一行补充完整.
  item.setAccelerator(KeyStroke.getKeyStroke(acceleratorText));
  }
  catch (MissingResourceException e) {}

  // Register an action listener and command for the item.
  if (listener != null) {
  item.addActionListener(listener);
  item.setActionCommand(itemnames[i]);
  }

  // Add the item to the menu.
  menu.add(item);
 }

 // Return the automatically created localized menu.
 return menu;
 }

 /** A simple test program for the above code */
 public static void main(String[] args) {
 // Get the locale: default, or specified on command-line
 Locale locale;
 if (args.length == 2) locale = new Locale(args[0], args[1]);
 else locale = Locale.getDefault( );

 // Get the resource bundle for that Locale. This will throw an
 // (unchecked) MissingResourceException if no bundle is found.
 ResourceBundle bundle =
  ResourceBundle.getBundle("com.davidflanagan.examples.i18n.Menus",
     locale); //注一

 // Create a simple GUI window to display the menu with
 final JFrame f = new JFrame("SimpleMenu: " + // Window title
    locale.getDisplayName(Locale.getDefault( )));
 JMenuBar menubar = new JMenuBar( );  // Create a menubar.
 f.setJMenuBar(menubar);   // Add menubar to window

 // Define an action listener that our menu will use.
 ActionListener listener = new ActionListener( ) {
  public void actionPerformed(ActionEvent e) {
   String s = e.getActionCommand( );
   Component c = f.getContentPane( );
   if (s.equals("red")) c.setBackground(Color.red);
   else if (s.equals("green")) c.setBackground(Color.green);
   else if (s.equals("blue")) c.setBackground(Color.blue);
  }
  };

 // Now create a menu using our convenience routine with the resource
 // bundle and action listener we've created
 JMenu menu = SimpleMenu.create(bundle, "colors",
     new String[] {"red", "green", "blue"},
     listener);

 // Finally add the menu to the GUI, and pop it up
 menubar.add(menu);  // Add the menu to the menubar
 f.setSize(300, 150);  // Set the window size.
 f.setVisible(true);  // Pop the window up.
 }

# The file Menus.properties is the default "Menus" resource bundle.
# As an American programmer, I made my own locale the default.
colors.label=Colors
colors.red.label=Red
colors.red.accelerator=alt R
colors.green.label=Green
colors.green.accelerator=alt G
colors.blue.label=Blue
colors.blue.accelerator=alt B

# This is the file Menus_en_GB.properties. It is the resource bundle for
# British English. Note that it overrides only a single resource definition
# and simply inherits the rest from the default (American) bundle.
colors.label=Colours

# This is the file Menus_fr.properties. It is the resource bundle for all
# French-speaking locales. It overrides most, but not all, of the resources
# in the default bundle.
colors.label=Couleurs
colors.red.label=Rouge
colors.green.label=Vert
colors.green.accelerator=control shift V
colors.blue.label=Bleu

package je3.i18n;
import java.text.*;
import java.io.*;
import java.util.*;

/**
 * A convenience class that can display a localized exception message
 * depending on the class of the exception. It uses a MessageFormat,
 * and passes five arguments that the localized message may include:
 * {0}: the message included in the exception or error.
 * {1}: the full class name of the exception or error.
 * {2}: the file the exception occurred in
 * {3}: a line number in that file.
 * {4}: the current date and time.
 * Messages are looked up in a ResourceBundle with the basename
 * "Errors", using a the full class name of the exception object as
 * the resource name. If no resource is found for a given exception
 * class, the superclasses are checked.
 **/
public class LocalizedError {
 public static void display(Throwable error) {
  ResourceBundle bundle;
  // Try to get the resource bundle.
  // If none, print the error in a nonlocalized way.
  try {
   String bundleName = "com.davidflanagan.examples.i18n.Errors";
   bundle = ResourceBundle.getBundle(bundleName);
  }
  catch (MissingResourceException e) {
   error.printStackTrace(System.err);
   return;
  }
  
  // Look up a localized message resource in that bundle, using the
  // classname of the error (or its superclasses) as the resource name.
  // If no resource was found, display the error without localization.
  String message = null;
  Class c = error.getClass( );
  while((message == null) && (c != Object.class)) {
   try { message = bundle.getString(c.getName( )); }
   catch (MissingResourceException e) { c = c.getSuperclass( ); }
  }
  if (message == null) { error.printStackTrace(System.err); return; }
  
  // Get the filename and linenumber for the exception
  // In Java 1.4, this is easy, but in prior releases, we had to try
  // parsing the output Throwable.printStackTrace( );
  StackTraceElement frame = error.getStackTrace( )[0]; // Java 1.4
  String filename = frame.getFileName( );
  int linenum = frame.getLineNumber( );

  // Set up an array of arguments to use with the message
  String errmsg = error.getMessage( );
  Object[ ] args = {
   ((errmsg!= null)?errmsg:""), error.getClass( ).getName( ),
   filename, new Integer(linenum), new Date( )
  };

  // Finally, display the localized error message, using
  // MessageFormat.format( ) to substitute the arguments into the message.
  System.err.println(MessageFormat.format(message, args));
 }

 /** 
  * This is a simple test program that demonstrates the display( ) method.
  * You can use it to generate and display a FileNotFoundException or an
  * ArrayIndexOutOfBoundsException
  **/
 public static void main(String[ ] args) {
  try { FileReader in = new FileReader(args[0]); }
  catch(Exception e) { LocalizedError.display(e); }
 }
}

#
# This is the file Errors.properties
# One property for each class of exceptions that our program might
# report. Note the use of backslashes to continue long lines onto the
# next. Also note the use of \n and \t for newlines and tabs
#
java.io.FileNotFoundException: \
Error: File "{0}" not found\n\t\
Error occurred at line {3} of file "{2}"\n\tat {4}

java.io.UnsupportedEncodingException: \
Error: Specified encoding not supported\n\t\
Error occurred at line {3} of file "{2}"\n\tat {4,time} on {4,date}

java.io.CharConversionException:\
Error: Character conversion failure. Input data is not in specified format.

# A generic resource. Display a message for any error or exception that
# is not handled by a more specific resource.
java.lang.Throwable:\
Error: {1}: {0}\n\t\
Error occurred at line {3} of file "{2}"\n\t{4,time,long} {4,date,long}

colors.label=颜色设置
colors.red.label=红色
colors.red.accelerator=alt R
colors.green.label=绿色
colors.green.accelerator=alt G
colors.blue.label=蓝色
colors.blue.accelerator=alt B

/**
* @todo传入一个以UTF-8编码的字符,输出UTF-16编码的中文
* @ param inputStr String 需要转换的字串
*/
public static String getChineseOut(String inputStr){
 try{
  String temp_s = inputStr;
  byte[] temp_b = null;
    temp_b = temp_s.getBytes("ISO8859-1"); 
  String result = new String(temp_b);
  return result;
 }
 catch(Exception e){
  e.printStackTrace();
  return inputStr;
 }
 }