服务器跳转，传参数
<jsp:forward page="target.jsp">
<jsp:param value="java1234" name="userName"/>
<jsp:param value="123456" name="password"/>
</jsp:forward><body>
服务器内部跳转后的页面<br/>
userName:<%=request.getParameter("userName") %><br/>
password:<%=request.getParameter("password") %><br/>
</body>