📄 usecart_jsp.java
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package org.apache.jsp;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import java.util.*;
public final class usecart_jsp extends org.apache.jasper.runtime.HttpJspBase
implements org.apache.jasper.runtime.JspSourceDependent {
String goodName=null;
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,
null, true, 8192, true);
_jspx_page_context = pageContext;
application = pageContext.getServletContext();
config = pageContext.getServletConfig();
session = pageContext.getSession();
out = pageContext.getOut();
_jspx_out = out;
out.write("\n");
out.write("\n");
out.write("\n");
out.write("<html>\n");
out.write(" <head>\n");
out.write(" <meta http-equiv=\"Content-Type\" content=\"text/html; charset=gb2312\">\n");
out.write(" <title>使用JavaBean的购物车</title>\n");
out.write(" </head>\n");
out.write(" <body><h4>\n");
out.write(" 选择商品后点击“提交”按钮添加到购物车\n");
out.write(" <form action=\"usecart.jsp\" method=\"POST\">\n");
out.write(" <select name=\"good\" size=\"6\">\n");
out.write(" <option value=\"0\">NetBeans从入门到精通</option>\n");
out.write(" <option value=\"1\">Java 2参考手册</option>\n");
out.write(" <option value=\"2\">Java 数据库开发宝典</option>\n");
out.write(" <option value=\"3\">J2EE 开发使用手册</option>\n");
out.write(" <option value=\"4\">Java 网络编程</option> \n");
out.write(" </select><br>\n");
out.write(" <input type=\"submit\" value=\"提交\">\n");
out.write(" </form>\n");
out.write(" ");
out.write("\n");
out.write(" ");
com.netbeans.web.Cart cart = null;
synchronized (session) {
cart = (com.netbeans.web.Cart) _jspx_page_context.getAttribute("cart", PageContext.SESSION_SCOPE);
if (cart == null){
cart = new com.netbeans.web.Cart();
_jspx_page_context.setAttribute("cart", cart, PageContext.SESSION_SCOPE);
}
}
out.write("\n");
out.write(" ");
//向购物车中添加商品 goodName=request.getParameter("good"); if(goodName!=null) cart.addGoods(goodName);
out.write("\n");
out.write(" ");
//输出购物车中商品 Hashtable cartHash=cart.getGoods(); Set cartSet=cartHash.keySet(); Iterator cartIt=cartSet.iterator(); while(cartIt.hasNext()){ int num=Integer.parseInt(cartIt.next().toString()); switch(num){ case 0: out.println("NetBeans从入门到精通： "+cartHash.get("0")+"本<br>"); break; case 1: out.println("Java 2参考手册： "+cartHash.get("1")+"本<br>"); break; case 2: out.println("Java 数据库开发宝典： "+cartHash.get("2")+"本<br>"); break; case 3: out.println("J2EE 开发使用手册： "+cartHash.get("3")+"本<br>"); break; case 4: out.println("Java 网络编程： "+cartHash.get("4")+"本<br>"); break; } } /*if(cartHash.get("0")!=null){ out.println("NetBeans从入门到精通： "+cartHash.get("0")+"本<br>"); } if(cartHash.get("1")!=null){ out.println("Java 2参考手册： "+cartHash.get("1")+"本<br>"); } if(cartHash.get("2")!=null){ out.println("Java 数据库开发宝典： "+cartHash.get("2")+"本<br>"); } if(cartHash.get("3")!=null){ out.println("J2EE 开发使用手册： "+cartHash.get("3")+"本<br>"); } if(cartHash.get("4")!=null){ out.println("Java 网络编程： "+cartHash.get("4")+"本<br>"); }*/
out.write("\n");
out.write(" </h4> </body>\n");
out.write("</html>\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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