📄 showcart_jsp.java
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package org.apache.jsp;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import mypack.*;
import java.util.Properties;
import java.util.*;
public final class showcart_jsp extends org.apache.jasper.runtime.HttpJspBase
implements org.apache.jasper.runtime.JspSourceDependent {
public String convert(String s){
try{
return new String(s.getBytes("ISO-8859-1"),"GB2312");
}catch(Exception e){return null;}
}
private static java.util.Vector _jspx_dependants;
static {
_jspx_dependants = new java.util.Vector(2);
_jspx_dependants.add("/common.jsp");
_jspx_dependants.add("/banner.jsp");
}
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,
"errorpage.jsp", 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");
out.write("\r\n");
out.write("\r\n");
out.write("\r\n");
out.write("\r\n");
out.write("\r\n");
mypack.BookDB bookDB = null;
synchronized (application) {
bookDB = (mypack.BookDB) _jspx_page_context.getAttribute("bookDB", PageContext.APPLICATION_SCOPE);
if (bookDB == null){
bookDB = new mypack.BookDB();
_jspx_page_context.setAttribute("bookDB", bookDB, PageContext.APPLICATION_SCOPE);
}
}
out.write("\r\n");
out.write("\r\n");
out.write('\r');
out.write('\n');
out.write("\r\n");
out.write("\r\n");
out.write("\r\n");
mypack.ShoppingCart cart = null;
synchronized (session) {
cart = (mypack.ShoppingCart) _jspx_page_context.getAttribute("cart", PageContext.SESSION_SCOPE);
if (cart == null){
cart = new mypack.ShoppingCart();
_jspx_page_context.setAttribute("cart", cart, PageContext.SESSION_SCOPE);
}
}
out.write("\r\n");
out.write("\r\n");
out.write("<html>\r\n");
out.write("<head><title>TitleShoppingCart</title></head>\r\n");
out.write("\r\n");
out.write("<body>\r\n");
out.write("<img src=\"logo.bmp\" >\r\n");
out.write("<hr>\r\n");
out.write("\r\n");
out.write('\r');
out.write('\n');
String bookId = request.getParameter("Remove");
if (bookId != null) {
cart.remove(bookId);
BookDetails book = bookDB.getBookDetails(bookId);
out.write("\r\n");
out.write("\r\n");
out.write("<font color=\"red\" size=\"+2\">您删除了一本书：<em>");
out.print(convert(book.getTitle()));
out.write("\r\n");
out.write("</em>\r\n");
out.write("<br> <br>\r\n");
out.write("</font>\r\n");
out.write("\r\n");
}
if (request.getParameter("Clear") != null) {
cart.clear();
out.write("\r\n");
out.write("\r\n");
out.write("<font color=\"red\" size=\"+2\"><strong>\r\n");
out.write("清空购物车\r\n");
out.write("</strong><br> <br></font>\r\n");
out.write("\r\n");
}
// Print a summary of the shopping cart
int num = cart.getNumberOfItems();
if (num > 0) {
out.write("\r\n");
out.write("\r\n");
out.write("<font size=\"+2\">您的购物车内有");
out.print(num);
out.write("本书\r\n");
out.write("</font><br> \r\n");
out.write("\r\n");
out.write("<table>\r\n");
out.write("<tr>\r\n");
out.write("<th align=left>数量</th>\r\n");
out.write("<th align=left>书名</th>\r\n");
out.write("<th align=left>价格</th>\r\n");
out.write("</tr>\r\n");
out.write("\r\n");
Iterator i = cart.getItems().iterator();
while (i.hasNext()) {
ShoppingCartItem item = (ShoppingCartItem)i.next();
BookDetails book = (BookDetails)item.getItem();
out.write("\r\n");
out.write("\r\n");
out.write("<tr>\r\n");
out.write("<td align=\"right\" bgcolor=\"#ffffff\">\r\n");
out.print(item.getQuantity());
out.write("\r\n");
out.write("</td>\r\n");
out.write("\r\n");
out.write("<td bgcolor=\"#ffffaa\">\r\n");
out.write("<strong><a href=\"");
out.print(request.getContextPath());
out.write("/bookdetails.jsp?bookId=");
out.print(book.getBookId());
out.write("\">\r\n");
out.print(convert(book.getTitle()));
out.write("</a></strong>\r\n");
out.write("</td>\r\n");
out.write("\r\n");
out.write("<td bgcolor=\"#ffffaa\" align=\"right\">\r\n");
out.print(book.getPrice());
out.write("\r\n");
out.write("</td>\r\n");
out.write("\r\n");
out.write("<td bgcolor=\"#ffffaa\">\r\n");
out.write("<strong>\r\n");
out.write("<a href=\"");
out.print(request.getContextPath());
out.write("/showcart.jsp?Remove=");
out.print(book.getBookId());
out.write("\">删除</a></strong>\r\n");
out.write("</td></tr>\r\n");
out.write("\r\n");
// End of while
}
out.write("\r\n");
out.write("\r\n");
out.write("<tr><td colspan=\"5\" bgcolor=\"#ffffff\"><br></td></tr>\r\n");
out.write("\r\n");
out.write("<tr>\r\n");
out.write("<td colspan=\"2\" align=\"right\" bgcolor=\"#ffffff\">总额(元)</td>\r\n");
out.write("<td bgcolor=\"#ffffaa\" align=\"right\">");
out.print(cart.getTotal());
out.write("</td>\r\n");
out.write("<td><br></td>\r\n");
out.write("</tr>\r\n");
out.write("\r\n");
out.write("</table>\r\n");
out.write("\r\n");
out.write("<p> <p>\r\n");
out.write("<strong><a href=\"");
out.print(request.getContextPath());
out.write("/catalog.jsp\">继续购物</a> \r\n");
out.write("<a href=\"");
out.print(request.getContextPath());
out.write("/cashier.jsp\">付账</a> \r\n");
out.write("<a href=\"");
out.print(request.getContextPath());
out.write("/showcart.jsp?Clear=clear\">清空购物车</a></strong>\r\n");
} else {
out.write("\r\n");
out.write("\r\n");
out.write("<font size=\"+2\">您的购物车目前为空</font>\r\n");
out.write("<br> <br>\r\n");
out.write("<a href=\"");
out.print(request.getContextPath());
out.write("/catalog.jsp\">继续购物</a>\r\n");
out.write("\r\n");
// End of if
}
out.write("\r\n");
out.write("\r\n");
out.write("</body>\r\n");
out.write("</html>\r\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);
}
}
}
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