在servlet里面写了 req.setAttribute("pageNo",m_pageNo);
RequestDispatcher dispatcher = req.getRequestDispatcher("xianshirj.jsp");
dispatcher.forward(req, resp);
跳转到xianshirj.jsp后,
int m_pageNo =0;
m_pageNo=Integer.parseInt(request.getParameter("pageNo"));
居然报异常?
org.apache.jasper.JasperException: An exception occurred processing JSP page /xianshirj.jsp at line 1815: List<Diary>m_list = new LinkedList<Diary>();
16: m_list=(List)request.getAttribute("list");
17: int m_pageNo =0;
18: m_pageNo=Integer.parseInt(request.getParameter("pageNo"));
19: request.setAttribute("m_pageNo",m_pageNo);
20: request.setAttribute("m_list",m_list);
21: %>
RequestDispatcher dispatcher = req.getRequestDispatcher("xianshirj.jsp");
dispatcher.forward(req, resp);
跳转到xianshirj.jsp后,
int m_pageNo =0;
m_pageNo=Integer.parseInt(request.getParameter("pageNo"));
居然报异常?
org.apache.jasper.JasperException: An exception occurred processing JSP page /xianshirj.jsp at line 1815: List<Diary>m_list = new LinkedList<Diary>();
16: m_list=(List)request.getAttribute("list");
17: int m_pageNo =0;
18: m_pageNo=Integer.parseInt(request.getParameter("pageNo"));
19: request.setAttribute("m_pageNo",m_pageNo);
20: request.setAttribute("m_list",m_list);
21: %>
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pageNo并不是传过去的,你应该用request.getAttribute("pageNo")
如果用request.getParameter("pageNo")那你就要在servlet中
RequestDispatcher dispatcher = req.getRequestDispatcher("xianshirj.jsp?pageNo="+m_pageNo);
m_pageNo=Integer.parseInt(request.getParameter("pageNo"));
//该用getAttribute()吧
m_pageNo=Integer.parseInt(request.getAttribute("pageNo"));
好用