java讀取utf8配置文件亂碼

email.properties文件如果以ISO-8859-1編碼，那么以下的java代碼讀取中文不會亂碼，因為eclipse下中文都被翻譯成/u...

//in Conf.java
Properties p = new Properties();
InputStream is = Conf.class.getClassLoader().getResourceAsStream(
                "email.properties");
String subject = p.getProperty("EMAIL_SUBJECT");

但是如果把email.properties設置成utf8編碼，以上的代碼讀取的就是亂碼了。需要做如下變動

//in Conf.java

Properties p = new Properties();
InputStream is = Conf.class.getClassLoader().getResourceAsStream(
                "email.properties");
String subject = p.getProperty("EMAIL_SUBJECT");

new String(subject.getBytes("ISO-8859-1"),"UTF-8");