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cds_0002ejsp_jsp.java
资源名称：某公司的java培训教材　[点击查看]
上传用户：dinglihq
上传日期：2013-02-04
资源大小：99958k
文件大小：8k
源码类别：

Java编程

开发平台：

Java

cds_0002ejsp_jsp.java：源码内容
  1. import javax.servlet.*;
  2. import javax.servlet.http.*;
  3. import javax.servlet.jsp.*;
  4. import org.apache.jasper.runtime.*;
  5. import shoppingcart.Item;
  7. public class cds_0002ejsp_jsp extends HttpJspBase {
  10.   private static java.util.Vector _jspx_includes;
  12.   public java.util.List getIncludes() {
  13.     return _jspx_includes;
  14.   }
  16.   public void _jspService(HttpServletRequest request, HttpServletResponse response)
  17.         throws java.io.IOException, ServletException {
  19.     JspFactory _jspxFactory = null;
  20.     javax.servlet.jsp.PageContext pageContext = null;
  21.     HttpSession session = null;
  22.     ServletContext application = null;
  23.     ServletConfig config = null;
  24.     JspWriter out = null;
  25.     Object page = this;
  26.     JspWriter _jspx_out = null;
  29.     try {
  30.       _jspxFactory = JspFactory.getDefaultFactory();
  31.       response.setContentType("text/html;charset=ISO-8859-1");
  32.       pageContext = _jspxFactory.getPageContext(this, request, response,
  33.        null, true, 8192, true);
  34.       application = pageContext.getServletContext();
  35.       config = pageContext.getServletConfig();
  36.       session = pageContext.getSession();
  37.       out = pageContext.getOut();
  38.       _jspx_out = out;
  40.       out.write("<HTML>");
  41.       out.write("<HEAD>");
  42.       out.write("<TITLE>Example of Using Session Scope");
  43.       out.write("</TITLE>");
  44.       out.write("</HEAD>");
  45.       out.write("<BODY>rn");
  46.       shoppingcart.ShoppingCart shoppingCart = null;
  47.       synchronized (session) {
  48.         shoppingCart = (shoppingcart.ShoppingCart) pageContext.getAttribute("shoppingCart", PageContext.SESSION_SCOPE);
  49.         if (shoppingCart == null){
  50.           try {
  51.             shoppingCart = (shoppingcart.ShoppingCart) java.beans.Beans.instantiate(this.getClass().getClassLoader(), "shoppingcart.ShoppingCart");
  52.           } catch (ClassNotFoundException exc) {
  53.             throw new InstantiationException(exc.getMessage());
  54.           } catch (Exception exc) {
  55.             throw new ServletException("Cannot create bean of class " + "shoppingcart.ShoppingCart", exc);
  56.           }
  57.           pageContext.setAttribute("shoppingCart", shoppingCart, PageContext.SESSION_SCOPE);
  58.         }
  59.       }
  60.       out.write("rn");
  61.       out.write("rn[ Shop for CDs ] ");
  62.       out.write("<A HREF="toys.jsp">Shop for Toys");
  63.       out.write("</A>rn");
  64.       out.write("<H1> Online CD Catalog ");
  65.       out.write("</H1>rn");
  66.       out.write("<TABLE>rn");
  67.       out.write("<TR>");
  68.       out.write("<TD BGCOLOR=AAAAAA ALIGN=CENTER>Name");
  69.       out.write("</TD>");
  70.       out.write("<TD BGCOLOR=AAAAAA>SKU");
  71.       out.write("</TD>rn    ");
  72.       out.write("<TD BGCOLOR=AAAAAA>Decription");
  73.       out.write("</TD>");
  74.       out.write("<TD BGCOLOR=AAAAAA>Price");
  75.       out.write("</TD>rn    ");
  76.       out.write("<TD BGCOLOR=AAAAAA>&nbsp;");
  77.       out.write("</TD>");
  78.       out.write("</TR>rn");
  79.  String[] names = {"Tchaikovsky","Mendelssohn","Haydn","Schumann","Bach"};
  80.    String[] SKUs  = {"A111","2B22","33C3","444D","E555"};
  81.    double[] prices = {12.00, 23.50, 34.00, 45.50, 56.00};
  82.    int Quantity=1;
  83.    for(int j=0; j<names.length; j++){ 
  84.       out.write("rn     ");
  85.       out.write("<TR>");
  86.       out.write("<TD BGCOLOR=DDDDDD>");
  87.       out.print(names[j]);
  88.       out.write("  ");
  89.       out.write("</TD>rn         ");
  90.       out.write("<TD BGCOLOR=DDDDDD>");
  91.       out.print(SKUs[j]);
  92.       out.write("   ");
  93.       out.write("</TD>rn         ");
  94.       out.write("<TD BGCOLOR=DDDDDD>Music CD       ");
  95.       out.write("</TD>rn         ");
  96.       out.write("<TD BGCOLOR=DDDDDD>");
  97.       out.print(Quantity);
  98.       out.write("   ");
  99.       out.write("</TD>rn         ");
  100.       out.write("<TD BGCOLOR=DDDDDD>");
  101.       out.print(prices[j]);
  102.       out.write("0");
  103.       out.write("</TD>rn         ");
  104.       out.write("<TD BGCOLOR=DDDDDD>rn             ");
  105.       out.write("<A HREF="cds.jsp?name=");
  106.       out.print(names[j]);
  107.       out.write("&sku=");
  108.       out.print(SKUs[j]);
  109.       out.write("&quantity=");
  110.       out.print(Quantity);
  111.       out.write("&price=");
  112.       out.print(prices[j]);
  113.       out.write("">rn              Add");
  114.       out.write("</A>");
  115.       out.write("</TD>");
  116.       out.write("</TR>rn");
  117.  } 
  118.       out.write("rn");
  119.       out.write("</TABLE>rn");
  120.       out.write("<A HREF=cds.jsp?name=emptyCart>Empty Shopping Cart");
  121.       out.write("</A>rn");
  122.       out.write("<HR>rn");
  123.       out.write("<H1> Content of Shopping Cart ");
  124.       out.write("</H1>rn");
  125.  String name = request.getParameter("name");
  126.    if(name!=null){
  127.      if(name.equals("emptyCart")){
  128.        shoppingCart.emptyCart();
  129.      } else if(name.equals("deleteItem")) {
  130.        String sku = request.getParameter("sku");
  131.        shoppingCart.deleteItem(sku);
  132.      } else {
  133.        String sku = request.getParameter("sku");
  134.        double price = Double.parseDouble(request.getParameter("price"));
  135.        int quantity=1;
  136.        Item newItem = new Item(sku, name, "Music CD",quantity,price);
  137.        shoppingCart.addItem(newItem);
  138.    }} 
  139.       out.write("rn");
  140.       out.write("<TABLE>rn");
  141.       out.write("<TR>");
  142.       out.write("<TD BGCOLOR=AAAAAA ALIGN=CENTER>Name");
  143.       out.write("</TD>");
  144.       out.write("<TD BGCOLOR=AAAAAA>SKU");
  145.       out.write("</TD>rn    ");
  146.       out.write("<TD BGCOLOR=AAAAAA>Decription");
  147.       out.write("</TD>rn    ");
  148.       out.write("<TD BGCOLOR=AAAAAA>Quantity");
  149.       out.write("</TD>rn    ");
  150.       out.write("<TD BGCOLOR=AAAAAA ALIGN=CENTER>Price");
  151.       out.write("</TD>");
  152.       out.write("<TD BGCOLOR=AAAAAA>&nbsp;");
  153.       out.write("</TD>rn    ");
  154.       out.write("</TR>rn");
  155.  java.util.Enumeration items = shoppingCart.getItems();
  156.    while(items.hasMoreElements()){
  157.      Item item = (Item)items.nextElement(); 
  158.       out.write("rn     ");
  159.       out.write("<TR>");
  160.       out.write("<TD BGCOLOR=DDDDDD>");
  161.       out.print(item.getName());
  162.       out.write("              ");
  163.       out.write("</TD>rn         ");
  164.       out.write("<TD BGCOLOR=DDDDDD>");
  165.       out.print(item.getSku());
  166.       out.write("               ");
  167.       out.write("</TD>rn         ");
  168.       out.write("<TD BGCOLOR=DDDDDD>");
  169.       out.print(item.getDescription());
  170.       out.write("       ");
  171.       out.write("</TD>rn         ");
  172.       out.write("<TD BGCOLOR=DDDDDD>");
  173.       out.print(item.getQuantity());
  174.       out.write("          ");
  175.       out.write("</TD>rn         ");
  176.       out.write("<TD BGCOLOR=DDDDDD ALIGN=RIGHT>");
  177.       out.print(item.getPrice());
  178.       out.write("0");
  179.       out.write("</TD>rnrn         ");
  180.       out.write("<TD BGCOLOR=DDDDDD>rn             ");
  181.       out.write("<A HREF="cds.jsp?name=deleteItem&sku=");
  182.       out.print(item.getSku());
  183.       out.write("">rn             Remove");
  184.       out.write("</A>");
  185.       out.write("</TD>rn");
  186.  }
  187.    double total = shoppingCart.computeTotal(); 
  188.       out.write("rn     ");
  189.       out.write("<TR>");
  190.       out.write("<TD>&nbsp;");
  191.       out.write("</TD>");
  192.       out.write("<TD>&nbsp;");
  193.       out.write("</TD>");
  194.       out.write("<TD BGCOLOR="DDDDDD">Total");
  195.       out.write("</TD>rn     ");
  196.       out.write("<TD BGCOLOR=DDDDDD ALIGN=RIGHT>");
  197.       out.print(shoppingCart.computeTotal());
  198.       out.write("0rn     ");
  199.       out.write("</TD>");
  200.       out.write("</TR>rn");
  201.       out.write("</TABLE>");
  202.       out.write("</BODY>");
  203.       out.write("</HTML>");
  204.     } catch (Throwable t) {
  205.       out = _jspx_out;
  206.       if (out != null && out.getBufferSize() != 0)
  207.         out.clearBuffer();
  208.       if (pageContext != null) pageContext.handlePageException(t);
  209.     } finally {
  210.       if (_jspxFactory != null) _jspxFactory.releasePageContext(pageContext);
  211.     }
  212.   }
  213. }