使用ResourceBundle国际化资源文件读取properties详解

eg:
public  class Commons {
    //工具类创建常量
    public static String EMAIL_ACCOUNT;
    public static String EMAIL_PASSWORD;
    //静态区域块读取 properties 
    static{
        ResourceBundle resource=ResourceBundle.getBundle("init");
        EMAIL_ACCOUNT=resource.getString("email_account").trim();
        EMAIL_PASSWORD=resource.getString("email_password").trim();
    }

//创建的   properties 配置
email_account=ygc@qq.com
email_password=ygc123456

//在程序里可以通过类+常量名直接调用定义在properties 的配置信息
    Commons.EMAIL_ACCOUNT;
    Commons.EMAIL_PASSWORD