- Home
- Products
- Integration
- Tutorial
- Barcode FAQ
- Purchase
- Company
from the system by removing its metadata file and the upload, if any, associated with it. in Java
from the system by removing its metadata file and the upload, if any, associated with it. QR Code ISO/IEC18004 Drawer In Java Using Barcode encoder for Java Control to generate, create Denso QR Bar Code image in Java applications. www.OnBarcode.comQR Code 2d Barcode Reader In Java Using Barcode recognizer for Java Control to read, scan read, scan image in Java applications. www.OnBarcode.comFileCaster upload page
Generating GTIN - 12 In Java Using Barcode creator for Java Control to generate, create UPCA image in Java applications. www.OnBarcode.comEncoding GTIN - 128 In Java Using Barcode creation for Java Control to generate, create GTIN - 128 image in Java applications. www.OnBarcode.comgetLastUpdateTime() returns the upload-time of the most recently added
Drawing PDF417 In Java Using Barcode maker for Java Control to generate, create PDF 417 image in Java applications. www.OnBarcode.comPDF-417 2d Barcode Creator In Java Using Barcode creator for Java Control to generate, create PDF417 image in Java applications. www.OnBarcode.comfile-cast.
USS Code 128 Printer In Java Using Barcode drawer for Java Control to generate, create Code128 image in Java applications. www.OnBarcode.comEncoding 2/5 Interleaved In Java Using Barcode printer for Java Control to generate, create 2/5 Interleaved image in Java applications. www.OnBarcode.comFileCaster and FileCast are all we need to implement the Web interface, so let s move on to the JSP code. Draw QR Code 2d Barcode In Objective-C Using Barcode creation for iPhone Control to generate, create QR Code image in iPhone applications. www.OnBarcode.comDenso QR Bar Code Creation In .NET Framework Using Barcode maker for Visual Studio .NET Control to generate, create QR-Code image in .NET applications. www.OnBarcode.com18.3 FileCaster upload page
Draw Code-128 In Visual Basic .NET Using Barcode encoder for Visual Studio .NET Control to generate, create USS Code 128 image in .NET framework applications. www.OnBarcode.comBarcode Maker In Visual Studio .NET Using Barcode encoder for .NET framework Control to generate, create Barcode image in VS .NET applications. www.OnBarcode.comFigure 18.3 shows the FileCaster user interface, a single web page that allows you to manage the file-casts in the system. The top half of the page is a form in which GTIN - 128 Printer In Java Using Barcode generator for Android Control to generate, create UCC-128 image in Android applications. www.OnBarcode.comCode 128 Code Set C Drawer In Objective-C Using Barcode generator for iPad Control to generate, create Code 128B image in iPad applications. www.OnBarcode.comFileCaster web user interface (index.jsp) UPCA Maker In Java Using Barcode maker for BIRT Control to generate, create UPC A image in BIRT applications. www.OnBarcode.comGenerating EAN 128 In None Using Barcode creator for Software Control to generate, create GS1 128 image in Software applications. www.OnBarcode.comDistribute files podcast style
Code 128 Code Set A Drawer In None Using Barcode drawer for Font Control to generate, create Code-128 image in Font applications. www.OnBarcode.comBarcode Printer In None Using Barcode generator for Font Control to generate, create Barcode image in Font applications. www.OnBarcode.comyou can enter the title and description of a new file-cast. To add a file-cast, you must upload a file or enter the URL of a remote file. The bottom half of the page is the File-cast Archive, a listing of the 30 most recent file-casts that exist in the system. You can download file-casts or delete ones you no longer want in the newsfeed. The orange XML icon links to the RSS newsfeed of the most recent file-casts. Now that we know what the final product will look like, let s dive into the JSP code for the FileCaster main page, shown in listing 18.1. JSP code is shown in bold to set it apart from the HTML that makes up the rest of the page. Drawing QR Code 2d Barcode In None Using Barcode creation for Online Control to generate, create Denso QR Bar Code image in Online applications. www.OnBarcode.comDraw GS1 - 12 In Objective-C Using Barcode drawer for iPad Control to generate, create GS1 - 12 image in iPad applications. www.OnBarcode.comListing 18.1 index.jsp
<html> <%@ page import="java.util.*" %> <%@ page import="com.manning.blogapps.chapter18.filecaster.*" %> <%@ page import="org.apache.commons.fileupload.*" %> <head> <link href= <%= fileCaster.getAbsoluteUrl() + /rss.jsp %> rel= alternate type= application/xml+rss /> <link href="blogapps.css" rel="stylesheet" type="text/css" /> <script type="text/javascript" src="filecaster.js"></script> <% FileCaster fileCaster = FileCasterImpl.getFileCaster(request); List errors = new ArrayList(); List messages = new ArrayList(); if (request.getMethod().equals("POST")) { try { String removeFile = request.getParameter("removeFile"); if (removeFile != null) { fileCaster.removeFileCast(removeFile); messages.add("SUCCESS: removed file-cast"); } else { FileCast fileCast = new FileCast(); DiskFileUpload uploader = new DiskFileUpload(); fileCast.initFromFileUpload(uploader.parseRequest(request)); errors.addAll(fileCast.validate()); if (errors.size() == 0) { fileCaster.addFileCast(fileCast); } } } catch (Exception e) { errors.add("ERROR: processing post" + e.getMessage()); } } %> </head> <body> <h1>FileCaster</h1> <h2>Add a new file-cast</h2> C D E
FileCaster upload page
<% if (messages.size() > 0) { %> <span class="messages"> <% for (int i=0; i<messages.size(); i++) { out.write(messages.get(0).toString() + "<br />"); } %> </span> <% } %> <% if (errors.size() > 0) { %> <span class="errors"> <% for (int i=0; i<errors.size(); i++) { out.write(errors.get(0).toString() + "<br />"); } %> </span> <% } %> <p>Enter title and description to appear in newsfeed. Upload a file or specify a file-cast at a remote URL.</p> <form name= addFileCast action="index.jsp" method="post" enctype="multipart/form-data"> <div class="row"> <label class="leftcol" name="title">Title</label> <input type="text" name="title" size="40" /> </div> <div class="row"> <label class="leftcol" name="description">Description</label> <input type="text" name="description" size="40"URL /> </div> <div class="row"> <label class="leftcol" name="remoteUrl">Remote URL</label> <input type="text" name="remoteUrl" size="40" onkeyup="validate()" /> </div> <div class="row"> <label class="leftcol" name="fileUpload">File Upload</label> <input type="file" name="fileUpload" size="40" onchange="validate()" onkeydown="validate()" /> </div> <br /> <div class="row"> <span class="leftcol"> </span> <input name="add_button" type="submit" value="Add" disabled="true" /> </div> </form> <h2>File-cast Archive</h2>
<p>Most recent file-casts in the archive are listed below. To subscribe, right-click the orange XML icon below, copy the newsfeed link, and paste it into your newsfeed reader.</p> <p><a href="rss.jsp"> Distribute files podcast style
<img src="images/rssbadge.gif"" border=0" /> </a></p>
2@ 2# <div style="padding: 10px; border: grey 1px dotted"> <% Iterator list = fileCaster.getRecentFileCasts(30).iterator(); while (list.hasNext()) { FileCast loopcast = (FileCast)list.next(); String url = loopcast.getUrl( fileCaster.getAbsoluteUrl() + "/uploads/"); %> <span class="title"> <b>Title</b>: <%= loopcast.getTitle() %> </span><br /> <span class="details"> <% if (loopcast.getDescription().length() > 0) { out.write(loopcast.getDescription() + "<br />"); } %> <b>Content Type</b>: <%= loopcast.getContentType() %> <b>Content Length</b>: <%= loopcast.getContentLength() %><br /> <b>Link</b>: <%= url %> </span><br /> [<a href="<%= url %>">downoad</a>] [<a href="#" onclick= "removeFileCast('<%= loopcast.getSaveFilename() %>')">remove</a>] <br /><br /> <% } %> </div> <form name= removeForm action="index.jsp" method="post"> <input type="hidden" name="removeFile" value="" /> </form> </body> </html> Let s discuss the JSP in detail. The page starts with the usual opening <html> tag, followed by the Java imports needed by the Java code contained in the page b. Next, we have a link to the blogapps.css stylesheet, which sets our attractive fonts and gives the page its nice orange and yellow color scheme c. That s followed by a <script> tag that brings in the filecaster.js, which includes a couple of helpful JavaScript functions that we ll discuss later d. We start the main body of JSP scriptlet code by creating the objects we ll need on the rest of the page. We get the FileCaster object by calling a static method getFileCaster(), which either returns the existing object from application scope or creates a new one e. Next, we create errors and messages collections to hold messages we create during processing f. If the request is a POST g, that means the user hit the Add button to add a new file-cast or clicked a delete link on an existing file-cast.
|
|