1. 怎麼在多個JSP頁面之間進行參數傳遞？需要使用JSP的內建範圍對象session。利用它的兩個方法setAttribute()，getAttribute()
2. 下面的這個執行個體實現了把第一個JSP頁面的參數傳遞給第三個頁面的功能
3. 代碼如下：1.jsp
<html>
<form method=get action=2.jsp>
what's your name<input type=text name=username>
<input type=submit value=submit>
</form>
</html>
4. 2.jsp
<html>
<form method=post action="3.jsp?pass=11">
<%
String name=request.getParameter("username");
session.setAttribute("username",name);
%>
Your name is:<%=request.getParameter("username")%>
<br>what's your hobby<input type=text name=hobby>
<input type=submit value=submit>
</form>
</html>
5. 3.jsp
<html>
your name is:<%=session.getAttribute("username")%>
<br>
your hobby is:<%=request.getParameter("hobby")%>
<br>
your password is:<%=request.getParameter("pass")%>
<br>
</form>
</html>
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