Java使用enum处理国际化问题 (一)

2014-11-24 03:03:09 · 作者: · 浏览: 0

Message.java

Java代码

public enum Message {

USER_USERNAME_EXISTENT,

WHATEVER_YOU_WANT("whatever.You.WANT"),

NOT_DEFINED;

private final static ThreadLocal lang = new ThreadLocal();

private final static String BASENAME = "lang";

public final String key;

Message() {

key = name().toLowerCase().replace('_', '.');

}

Message(String key) {

this.key = key;

}

public String value() {

return text(key);

}

public String value(Object[] o) {

return text(key, o);

}

@Override

public String toString() {

return value();

}

private static String text(String key) {

return text(key, "");

}

private static String text(String key, Object[] o) {

return new MessageFormat(text(key)).format(o);

}

private static String text(String key, String defaultValue) {

return key == null || lang.get() == null || !lang.get().containsKey(key) defaultValue : lang.get().getString(key);

}

/*private static String text(String key, String defaultValue, Object[] o) {

return new MessageFormat(text(key, defaultValue)).format(o);

}*/

public static void setLocale(String s) {

try {

String[] arr = s.split("_");

Locale locale = null;

switch (arr.length) {

case 1:

locale = new Locale(arr[0]);

break;

case 2:

locale = new Locale(arr[0], arr[1]);

break;

case 3:

locale = new Locale(arr[0], arr[1], arr[2]);

break;

}

setLocale(locale);

} catch (Exception e) {

e.printStackTrace();

setLocale(Locale.CHINA);

}

}

public static void setLocale(Locale locale) {

lang.set(ResourceBundle.getBundle(BASENAME, locale));

}

public static void main(String[] args) {

testLocale(Locale.CHINA);

testLocale(Locale.CANADA);

testLocale(Locale.US);

}

private static void testLocale(Locale locale) {

setLocale(locale);

System.err.println("国际化资源完整性检查:" + BASENAME + "_" + locale + ".properties");

for (Message message : Message.values()) {

if (message.value().equals("")) {

System.err.println(message.key);

} /*else {

System.out.println(message.key + "=" + message.value());

}*/

}

}

}

public enum Message {

USER_USERNAME_EXISTENT,

WHATEVER_YOU_WANT("whatever.You.WANT"),

NOT_DEFINED;

private final static ThreadLocal lang = new ThreadLocal();

private final static String BASENAME = "lang";

public final String key;

Message() {

key = name().toLowerCase().replace('_', '.');

}

Message(String key) {

this.key = key;

}

public String value() {

return text(key);

}

public String value(Object[] o) {

return text(key, o);

}

@Override

public String toString() {

r