Murach’s Java Servlets/JSP (2 nd Ed.), C24© 2008, Mike Murach & Associates, Inc.Slide 1

Murach’s Java Servlets/JSP (2nd Ed.), C24 © 2008, Mike Murach & Associates, Inc. Slide 1

Chapter 24

The Admin application


The URL for accessing the Admin application without SSL

http://localhost:8080/musicStore/admin

The URL for accessing the Admin application with SSL

https://localhost:8443/musicStore/admin


The Index page for the Admin application


The structure of the Admin application

DisplayReportServlet

reports.jsp

index.jsp

table.xls

DisplayInvoiceServlet

ProcessInvoiceServlet

parameters.jsp

DisplayInvoicesServlet

invoices.jsp

invoice.jsp

music.admin package


The Login page


The Invoices page


The Invoice page


The DisplayInvoicesServlet class package music.admin; import java.io.*; import javax.servlet.*; import javax.servlet.http.*; import java.util.ArrayList; import music.data.*; import music.business.*; public class DisplayInvoicesServlet extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { HttpSession session = request.getSession();


The DisplayInvoicesServlet class (cont.) ArrayList<Invoice> unprocessedInvoices = InvoiceDB.selectUnprocessedInvoices(); if (unprocessedInvoices == null || unprocessedInvoices.size() <= 0) { response.sendRedirect("/musicStore/admin"); } else { session.setAttribute( "unprocessedInvoices", unprocessedInvoices); String url = "/admin/invoices.jsp"; RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(url); dispatcher.forward(request, response); } }


The DisplayInvoicesServlet class public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { doGet(request, response); } }


The invoices.jsp file <jsp:include page="/includes/header.html" /> <jsp:include page="/includes/column_left_no_links.jsp" />  <td valign="top"> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <h1>Invoices to be processed:</h1> <table> <tr> <td width="100"></td> <td width="150"><b>Customer Name</b></td> <td><b>Invoice Date</b></td> </tr>


The invoices.jsp file (cont.) <c:forEach var="invoice" items="${unprocessedInvoices}"> <tr> <td> <a href="displayInvoice?invoiceNumber= ${invoice.invoiceNumber}">Click to View </a> </td> <td>${invoice.user.firstName} ${invoice.user.lastName}</td> <td>${invoice.invoiceDateDefaultFormat}</td> </tr> </c:forEach> </table> <br>


The invoices.jsp file (cont.) <form action="index.jsp" method="post"> <input type=submit value="Go Back to Menu"> </form> </td>  <jsp:include page="/includes/footer.jsp" />


The DisplayInvoiceServlet class package music.admin; import java.io.*; import javax.servlet.*; import javax.servlet.http.*; import java.util.ArrayList; import music.business.*; public class DisplayInvoiceServlet extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { HttpSession session = request.getSession();


The DisplayInvoiceServlet class (cont.) String invoiceNumberString = request.getParameter("invoiceNumber"); int invoiceNumber = Integer.parseInt(invoiceNumberString); ArrayList<Invoice> unprocessedInvoices = (ArrayList<Invoice>) session.getAttribute("unprocessedInvoices"); Invoice invoice = null; for (int i = 0; i < unprocessedInvoices.size(); i++) { invoice = unprocessedInvoices.get(i); if (invoice.getInvoiceNumber() == invoiceNumber) { break; } }


The DisplayInvoiceServlet class (cont.) User user = invoice.getUser(); ArrayList<LineItem> lineItems = invoice.getLineItems(); session.setAttribute("user", user); session.setAttribute("invoice", invoice); Cart cart = new Cart(); cart.setItems(lineItems); session.setAttribute("cart", cart); String url = "/admin/invoice.jsp"; RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(url); dispatcher.forward(request, response); }


The DisplayInvoiceServlet class (cont.) public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { doGet(request, response); } }


The invoice.jsp file <td valign="top"> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <h1>Your invoice</h1> <table border="0" cellspacing="5"> <tr> <td><b>Date:</b></td> <td width="400">${invoice.invoiceDate}</td> <td></td> </tr> <tr valign="top"> <td><b>Ship To:</b></td> <td>${user.addressHTMLFormat}</td> <td></td> </tr> <tr><td colspan="3"><hr></td></tr>


The invoice.jsp file (cont.) <tr> <td><b>Qty</b></td> <td><b>Description</b></td> <td><b>Price</b></td> </tr> <c:forEach var="item" items="${invoice.lineItems}"> <tr> <td>${item.quantity}</td> <td>${item.product.description}</td> <td>${item.totalCurrencyFormat}</td> </tr> </c:forEach> <tr><td colspan="3"><hr></td></tr> <tr> <td><b>Total:</b></td> <td></td> <td><p>${invoice.invoiceTotalCurrencyFormat}</td> </tr>


The invoice.jsp file (cont.) <tr> <td><b>Payment information:</b></td> <td>${user.creditCardType}: ${user.creditCardNumber} (${user.creditCardExpirationDate})</td> </tr> <tr> <td><b>Email Address:</b></td> <td><p>${user.emailAddress}</td> </tr> </table> <form action="processInvoice" method="post"> <input type="submit" value="Process Invoice"> </form> <form action="invoices.jsp" method="post"> <input type="submit" value="View Unprocessed Invoices"> </form> </td>


The ProcessInvoiceServlet class package music.admin; import java.io.*; import javax.servlet.*; import javax.servlet.http.*; import music.data.*; import music.business.*; public class ProcessInvoiceServlet extends HttpServlet { public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { HttpSession session = request.getSession();


The ProcessInvoiceServlet class (cont.) Invoice invoice = (Invoice) session.getAttribute("invoice"); int invoiceID = invoice.getInvoiceNumber(); InvoiceDB.updateInvoiceIsProcessed(invoiceID); String url = "/admin/displayInvoices"; RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(url); dispatcher.forward(request, response); } }


The Reports page


The Parameters page


The User Email report


The Invoice Summary report


The Invoice Detail report


The DisplayReportServlet class package music.admin; import java.io.*; import javax.servlet.*; import javax.servlet.http.*; import music.data.*; public class DisplayReportServlet extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { response.setContentType("application/vnd.ms-excel"); PrintWriter out = response.getWriter();


The DisplayReportServlet class (cont.) String reportName = request.getParameter("reportName"); String reportTitle = request.getParameter("reportTitle"); String startDate = request.getParameter("startDate"); String endDate = request.getParameter("endDate"); String reportString = null; if (reportName.equalsIgnoreCase("userEmail")) { reportString = ReportDB.getUserEmail(reportTitle); } else if (reportName.equalsIgnoreCase("downloadDetail")) { reportString = ReportDB.getDownloadDetail( reportTitle, startDate, endDate); }


The DisplayReportServlet class (cont.) else if (reportName.equalsIgnoreCase("invoiceSummary")) { reportString = ReportDB.getOrderSummary( reportTitle, startDate, endDate); } else if (reportName.equalsIgnoreCase("invoiceDetail")) { reportString = ReportDB.getOrderDetail( reportTitle, startDate, endDate); } out.println(reportString); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { doGet(request, response); } }


The ReportDB class package music.data; import java.sql.*; public class ReportDB { // The Order Summary report public static String getOrderSummary(String reportTitle, String startDate, String endDate) { ConnectionPool pool = ConnectionPool.getInstance(); Connection connection = pool.getConnection(); Statement statement = null; ResultSet rs = null;


The ReportDB class (cont.) String query = "SELECT ProductCode, ProductDescription, " + " ProductPrice, Quantity, " + " SUM(Quantity) AS ProductQuantity, " + " SUM(ProductPrice*Quantity) AS ProductTotal " + "FROM Invoice " + " INNER JOIN LineItem " + " ON Invoice.InvoiceID = LineItem.InvoiceID " + " INNER JOIN Product " + " ON LineItem.ProductID = Product.ProductID " + "WHERE InvoiceDate >= '" + startDate + "' " + " AND InvoiceDate <= '" + endDate + "' " + "GROUP BY ProductCode, ProductDescription " + "ORDER BY ProductTotal DESC";


The ReportDB class (cont.) try { statement = connection.createStatement(); rs = statement.executeQuery(query); String d = "\t"; StringBuilder report = new StringBuilder( reportTitle + "\n\n" + "Start Date: " + startDate + "\n" + "End Date: " + endDate + "\n\n" + "ProductCode" + d + "ProductDescription" + d + "ProductPrice" + d + "Quantity" + d + "Total" + "\n");


The ReportDB class (cont.) while (rs.next()) { report.append( rs.getString("ProductCode") + d + rs.getString("ProductDescription") + d + rs.getDouble("ProductPrice") + d + rs.getInt("ProductQuantity") + d + rs.getDouble("ProductTotal") + "\n"); } return report.toString(); } catch(SQLException e) { e.printStackTrace(); return null; }


The ReportDB class (cont.) finally { DBUtil.closeResultSet(rs); DBUtil.closeStatement(statement); pool.freeConnection(connection); } } // the methods for the other reports }

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Murach’s Java Servlets/JSP (2 nd Ed.), C24© 2008, Mike Murach & Associates, Inc.Slide 1