String(byte[] bytes, String charsetName)

String str = new String("时之沙");
		byte bytes[] = str.getBytes("GBK");
		byte byte2[] = str.getBytes("ISO-8859-1");
		String str_gbk = new String(bytes, "GBK");
		System.out.println("str_gbk:" + str_gbk);
		String str_utf8 = new String(bytes, "UTF-8");
		System.out.println("str_utf8:" + str_utf8);
		String str_iso8859 = new String(bytes, "ISO-8859-1");
		System.out.println("str_iso8859" + str_iso8859);
		String byte2_gbk = new String(byte2, "GBK");
		System.out.println("byte2_gbk:" + byte2_gbk);

 输出结果:

str_gbk:时之沙
str_utf8:ʱ֮ɳ
str_iso8859ʱ֮ɳ
byte2_gbk:???