解决java页面URL地址传输参数乱码的方法

<Connector port="8080" protocol="HTTP/1.1"  connectionTimeout="20000" redirectPort="8443" URIEncoding="GBK" />

String username = request.getParameter("userName");  try {     username = new String(username.getBytes("iso-8859-1"), "GBK");   } catch (UnsupportedEncodingException e1) {     e1.printStackTrace();   }