cart_0005fmodify_0002ejsp_jsp.java

网上购物系统 用JSP做的 好几十页 用jbuilder运行

import java.sql.*;
import java.util.Vector;
import beans.bookelement;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import org.apache.jasper.runtime.*;


public class cart_0005fmodify_0002ejsp_jsp extends HttpJspBase {


    static {
    }
    public cart_0005fmodify_0002ejsp_jsp( ) {
    }

    private static boolean _jspx_inited = false;

    public final void _jspx_init() throws org.apache.jasper.runtime.JspException {
    }

    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;
        String  _value = null;
        try {

            if (_jspx_inited == false) {
                synchronized (this) {
                    if (_jspx_inited == false) {
                        _jspx_init();
                        _jspx_inited = true;
                    }
                }
            }
            _jspxFactory = JspFactory.getDefaultFactory();
            response.setContentType("text/html; charset=gb2312");
            pageContext = _jspxFactory.getPageContext(this, request, response,
            			"", true, 8192, true);

            application = pageContext.getServletContext();
            config = pageContext.getServletConfig();
            session = pageContext.getSession();
            out = pageContext.getOut();

            // HTML // begin [file="/cart_modify.jsp";from=(0,100);to=(1,0)]
                out.write("\r\n");

            // end
            // HTML // begin [file="/cart_modify.jsp";from=(1,36);to=(2,0)]
                out.write("\r\n");

            // end
            // HTML // begin [file="/cart_modify.jsp";from=(2,37);to=(3,0)]
                out.write("\r\n");

            // end
            // begin [file="/cart_modify.jsp";from=(3,2);to=(25,0)]
                
                Vector cart=(Vector)session.getAttribute("cart");
                Vector newcart=new Vector();
                for(int i=0;i<cart.size();i++){
                	String number=request.getParameter("num"+i);
                	if(number.equals("0")){
                		out.println("<script language='javascript'>alert('数量不能为0，请重新输入!');history.back();</script>");
                		return;
                	}
                	if(number.equals("")){
                		out.println("<script language='javascript'>alert('数量不能为空，请输入大于0的值!');history.back();</script>");
                		return;
                	}
                	bookelement mybookelement=(bookelement)cart.elementAt(i);
                	String num=request.getParameter("num"+i);
                	int newnum=Integer.parseInt(num);
                	mybookelement.number=newnum;
                	if(newnum!=0){
                		newcart.addElement(mybookelement);}
                }
                session.setAttribute("cart",newcart);
                response.sendRedirect("cart_see.jsp");
            // end
            // HTML // begin [file="/cart_modify.jsp";from=(25,2);to=(26,0)]
                out.write("\r\n");

            // end

        } catch (Throwable t) {
            if (out != null && out.getBufferSize() != 0)
                out.clearBuffer();
            if (pageContext != null) pageContext.handlePageException(t);
        } finally {
            if (_jspxFactory != null) _jspxFactory.releasePageContext(pageContext);
        }
    }
}