初学者小问题，呵呵
01.jsp:
<%@   page   language= "java "   contentType= "text/html;   charset=GBK "%>

<FORM   ACTION= "02.jsp "   METHOD= "POST ">
姓名:
<INPUT   TYPE= "TEXT "   NAME= "USERNAME ">
<BR>
密码：
<INPUT   TYPE= "PASSWORD "   NAME= "USERPASSWORD ">
<BR>
性别:
<INPUT   TYPE= "RADIO "   NAME= "SEX "   VALUE= "男 ">
男
<INPUT   TYPE= "RADIO "   NAME= "SEX "   VALUE= "女 ">
女
<BR>
血型:
<INPUT   TYPE= "RADIO "   NAME= "BLOOD "   VALUE= "A ">
A
<INPUT   TYPE= "RADIO "   NAME= "BLOOD "   VALUE= "B ">
B
<INPUT   TYPE= "RADIO "   NAME= "BLOOD "   VALUE= "AB ">
AB
<INPUT   TYPE= "RADIO "   NAME= "BLOOD "   VALUE= "O ">
O
<BR>
城市:
<SELECT   SIZE= "1 "   NAME= "CITY ">
<OPTION   VALUE= "北京 ">
北京
</OPTION>
<OPTION   VALUE= "南京 ">
南京
</OPTION>
<OPTION   VALUE= "上海 ">
上海
</OPTION>
</SELECT>
<br>
<INPUT   TYPE= "SUBMIT "   VALUE= "提交 ">
<INPUT   TYPE= "RESET "   VALUE= "RESET ">
</FORM>
===================================================================
02.jsp
<%@   page   language= "java "   contentType= "text/html;   charset=GBK "%>


<%
String   strName   =   request.getParameter( "USERNAME ");
String   password   =   request.getParameter( "USERPWD ");
String   strUserSex   =   request.getParameter( "SEX ");
String   strUserBlood   =   request.getParameter( "BLOOD ");
String   strUserCity   =   request.getParameter( "CITY ");
%>
用户名：
<%=strName%>
<br>
密码：
<%=password%>
<br>
性别：
<%=strUserSex%>
<br>
血型：
<%=strUserBlood%>
<br>
城市：
<%=strUserCity%>
<br>

为什么在02.jsp显示密码和城市都是“？？？”，而密码显示的是null
不知道是哪里出问题了？

------解决方案--------------------
String st=new(request.getParameter(“name”).getBytes(“ISO8859_1”))，