jsp返回servelet后乱码问题，请高手指教？

Question

private String getGBStr(String oldStr){
          String GBStr="";
          byte[] exchange;
          try {
                  exchange = oldStr.getBytes("ISO8859_1");
                  GBStr = new String(exchange, "GB2312");
          }
          catch (UnsupportedEncodingException ex) {
          }
          return GBStr;
  }
用这个方法把jsp传来的汉字转化一下，如下：
    String city= getGBStr(request.getParameter("City"));

Answer 1

lenho,怎么解決說出來大家分享啊﹐我也正有這樣的問題,thanks!