cart_005fmodify_jsp.java

这是一个用Struts做出来的网上商城的源代码

package org.apache.jsp;

import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import java.sql.*;
import java.util.*;
import com.domain.SellGoodsForm;

public final class cart_005fmodify_jsp extends org.apache.jasper.runtime.HttpJspBase
    implements org.apache.jasper.runtime.JspSourceDependent {

  private static java.util.Vector _jspx_dependants;

  public java.util.List getDependants() {
    return _jspx_dependants;
  }

  public void _jspService(HttpServletRequest request, HttpServletResponse response)
        throws java.io.IOException, ServletException {

    JspFactory _jspxFactory = null;
    PageContext pageContext = null;
    HttpSession session = null;
    ServletContext application = null;
    ServletConfig config = null;
    JspWriter out = null;
    Object page = this;
    JspWriter _jspx_out = null;
    PageContext _jspx_page_context = null;


    try {
      _jspxFactory = JspFactory.getDefaultFactory();
      response.setContentType("text/html; charset=gb2312");
      pageContext = _jspxFactory.getPageContext(this, request, response,
      			"", true, 8192, true);
      _jspx_page_context = pageContext;
      application = pageContext.getServletContext();
      config = pageContext.getServletConfig();
      session = pageContext.getSession();
      out = pageContext.getOut();
      _jspx_out = out;

      out.write("\r\n\r\n\r\n");

Vector cart=(Vector)session.getAttribute("cart");
Vector newcart=new Vector();
for(int i=0;i<cart.size();i++){
	String number=request.getParameter("num"+i);
	SellGoodsForm mygoodselement=(SellGoodsForm)cart.elementAt(i);
	String num=request.getParameter("num"+i);
	try{
	int newnum=Integer.parseInt(num);
	mygoodselement.number=newnum;
	if(newnum!=0){
		newcart.addElement(mygoodselement);}
	}catch(Exception e){
		out.println("<script language='javascript'>alert('您输入的数量不是有效的整数!');history.back();</script>");
		return;
	}
}
session.setAttribute("cart",newcart);
response.sendRedirect("cart_see.jsp");

      out.write('\r');
      out.write('\n');
    } catch (Throwable t) {
      if (!(t instanceof SkipPageException)){
        out = _jspx_out;
        if (out != null && out.getBufferSize() != 0)
          out.clearBuffer();
        if (_jspx_page_context != null) _jspx_page_context.handlePageException(t);
      }
    } finally {
      if (_jspxFactory != null) _jspxFactory.releasePageContext(_jspx_page_context);
    }
  }
}