item_query.jsp

《jsp案例开发》这本书的源代码。包括源代码和相关的具体配置操作步骤。非常不错

<%@ page
    language="java"
    contentType="text/html; charset=GBK"
    import="imis.*,javax.naming.*,javax.rmi.PortableRemoteObject,java.util.*"
%>
<%
  request.setCharacterEncoding("GBK");
  session=request.getSession();
  userStruct user=(userStruct)session.getAttribute("user");
  if(user==null){
  response.sendRedirect("../../login.html");
  }
  else if(user.userAccess.intValue()!=9&&user.userAccess.intValue()!=10)
    response.sendRedirect("../../error/access.html");
else{


  String querytag = request.getParameter("querytag");

%>
<%
  Collection collect=new ArrayList();
  Context ctx = new InitialContext();

    //look up jndi name
        Object ref = ctx.lookup("Item1Controller");
  //cast to Home interface
        Item1ControllerHome itemControllerHome = (Item1ControllerHome) PortableRemoteObject.narrow(ref, Item1ControllerHome.class);
        Item1Controller itemController = itemControllerHome.create();

        Collection c = itemController.getItemtableAll();

        if(querytag==null)
        {
        collect.addAll(c);
        }
        else
        {
        String itemname = request.getParameter("itemname");
        String itemcode = request.getParameter("itemcode");
        Integer itemtype = new Integer(request.getParameter("itemtype"));
        if(!itemname.equals(""))
        {
          Iterator i = c.iterator();
          while(i.hasNext())
            {
            ItemtableStruct its = (ItemtableStruct)i.next();
            if(its.itemname.equals(itemname))
              collect.add(its);
             }
        }
        else if(!itemcode.equals(""))
        {
          Iterator i = c.iterator();
          while(i.hasNext())
          {
          ItemtableStruct its = (ItemtableStruct)i.next();
          if(its.itemcode.equals(itemcode))
            collect.add(its);
             }
        }
        else if(itemtype.intValue()!=-1)
        {
          Iterator i = c.iterator();
         while(i.hasNext())
         {
           ItemtableStruct its = (ItemtableStruct)i.next();
           if(its.itemtype.intValue()==itemtype.intValue())
           collect.add(its);
             }
           }
         else
         {
         collect.addAll(c);
         }

        }

%>
<%
     session = request.getSession();
     session.setAttribute("itemtablec", collect);
     response.sendRedirect("itemlist.jsp");
%>
<%}%>