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:ʱ֮ɳstr_iso8859ʱ֮ɳbyte2_gbk:???