mess.properties文件：

hello=Hello World!
msg=Hello,{0}!Today is {1}.

mess_en_US.properties

hello=Hello World!
msg=Hello,{0}!Today is {1}.

mess_zh_CN.properties（Properties Editor插件）

hello=您好！
msg=你好，{0}！今天是{1}！

1、简单的资源绑定：

public class LocaleHello {public static void main(String[] args) {//真正的项目中是这样使用//Locale locale = Locale.getDefault();Locale locale = Locale.US;ResourceBundle resourceBundle = ResourceBundle.getBundle("mess", locale);System.out.println( resourceBundle.getString("hello") );//output:Hello World!locale = Locale.CHINESE;resourceBundle = ResourceBundle.getBundle("mess", locale);System.out.println( resourceBundle.getString("hello") );//output:您好！}}

2、带占位符的资源绑定：

public class LocaleParameterHello {public static void main(String[] args) {//真正的项目中是这样使用//Locale locale = Locale.getDefault();Locale locale = Locale.US;ResourceBundle resourceBundle = ResourceBundle.getBundle("mess", locale);String msg = resourceBundle.getString("msg");System.out.println( MessageFormat.format(msg, "GongQiang",new Date()));//output:Hello,GongQiang!Today is 11-7-18 下午2:09.locale = Locale.CHINESE;resourceBundle = ResourceBundle.getBundle("mess", locale);msg = resourceBundle.getString("msg");System.out.println( MessageFormat.format(msg, "龚强",new Date()) );//output:你好，龚强！今天是11-7-18 下午2:09！}}

可以看到，使用US本地化，输出的却是CHINESE的时间格式。

这是因为我的操作系统是中文，虽然在取绑定的资源时，我指定为Locale.US。但是对Date而言，它依然是取操作系统默认的Locale！