- Home
- Products
- Integration
- Tutorial
- Barcode FAQ
- Purchase
- Company
FileCaster upload page in Java
FileCaster upload page QR Printer In Java Using Barcode drawer for Java Control to generate, create Denso QR Bar Code image in Java applications. www.OnBarcode.comDecoding Denso QR Bar Code In Java Using Barcode decoder for Java Control to read, scan read, scan image in Java applications. www.OnBarcode.comIf the request parameter removeFile is set h, the user clicked a remove link. We respond by calling the fileCaster object to remove the specified file-cast i and adding a success message to the messages collection j. If the request is not a remove request, the user clicked the Add button to add a new file-cast. We respond by creating a FileCast 1) and initializing it using the Jakarta Commons File Upload DiskFileUpoad class to parse the request parameters and any uploaded file data 1! . If calling the fileCast.validate() method returns no error messages 1@ , we have a valid file-cast and we call the fileCaster. addFileCast() method to save it 1# . If there are error messages, we ll display them later in the body of the page. At this point, we re through with the posted form data and ready to display the body of the HTML page. We did everything in a try-catch block, so if an exception occurs, we simply add a message to our error collection 1$ , which will be displayed later in the page. In the <body> 1% , we welcome the user by displaying the FileCaster header and the Add a new file-cast options. Since we re at the top of the page and we have the user s attention, we display any success and error messages we have collected so far. We display them 1^ in a span with a CSS class messages so we can style them with a light green box and a green outline. We do the same thing for any error messages 1& , except we display them in a light red box. Next we present the file-cast form 1* with encoding type multipart/form-data, which is required for posting file-uploads. It s just a standard HTML form with fields for title, description, remote URL, and a file-upload. There s no magic or JSP code involved, but the form does have one special feature. The form will not allow you to click the Add button until you have entered either a remote URL or a file-upload and it will allow you to enter only one or the other, not both. We do this by using onkeyup, onkeydown, and onchange event handlers in the remoteUrl 1( and fileUpload 2) fields, which call a validate() method (defined in filecaster.js) to enable and disable form elements. After the file-cast form, we display an informative listing of the most recent file-casts. First, we display a File-cast Archive heading 2! and explain how to subscribe to the file-cast newsfeed. We provide a link to the file-cast newsfeed with the standard orange XML icon 2@ . We re also going to display a list of the 30 most recent file-casts. For each one, we ll display title, description, a download link, and a remove link. We start by calling the FileCaster object s getRecentFileCasts() method 2# to get an iterator. We iterate through the collection of FileCast objects and emit the HTML needed to display each. The remove link 2$ uses a JavaScript method Code 3/9 Encoder In Java Using Barcode drawer for Java Control to generate, create ANSI/AIM Code 39 image in Java applications. www.OnBarcode.comPaint ECC200 In Java Using Barcode encoder for Java Control to generate, create Data Matrix image in Java applications. www.OnBarcode.comDistribute files podcast style
European Article Number 13 Maker In Java Using Barcode creator for Java Control to generate, create EAN 13 image in Java applications. www.OnBarcode.comCode 128 Code Set A Drawer In Java Using Barcode creator for Java Control to generate, create Code 128 Code Set C image in Java applications. www.OnBarcode.comremoveFileCast() (defined in filecaster.js) to remove the file-base by setting the removeFile parameter on the removeForm form 2% and submitting that form. That brings us to the end of the JSP that defines the FileCaster web UI. Now, let s move on to the JSP for the RSS newsfeed. Draw PDF 417 In Java Using Barcode creation for Java Control to generate, create PDF417 image in Java applications. www.OnBarcode.comUSPS PLANET Barcode Maker In Java Using Barcode maker for Java Control to generate, create USPS Confirm Service Barcode image in Java applications. www.OnBarcode.com18.4 FileCaster newsfeed
QR-Code Generation In .NET Using Barcode drawer for Reporting Service Control to generate, create QR Code 2d barcode image in Reporting Service applications. www.OnBarcode.comPaint QR Code In .NET Framework Using Barcode creator for ASP.NET Control to generate, create QR Code JIS X 0510 image in ASP.NET applications. www.OnBarcode.comThe FileCaster newsfeed is a standard RSS 2.0 newsfeed, which includes an <enclosure> element in each item. Let s examine listing 18.2 and see how the JSP code produces the newsfeed. Here again, JSP code is shown in bold to differentiate it from the HTML that makes up the rest of the page. Barcode Creation In Java Using Barcode encoder for Android Control to generate, create Barcode image in Android applications. www.OnBarcode.comDraw EAN-13 Supplement 5 In None Using Barcode printer for Software Control to generate, create EAN / UCC - 13 image in Software applications. www.OnBarcode.comBarcode Creator In None Using Barcode encoder for Office Excel Control to generate, create Barcode image in Excel applications. www.OnBarcode.comPrinting Barcode In Java Using Barcode maker for BIRT Control to generate, create Barcode image in BIRT reports applications. www.OnBarcode.comCreate Barcode In None Using Barcode drawer for Font Control to generate, create Barcode image in Font applications. www.OnBarcode.comDrawing QR Code ISO/IEC18004 In Java Using Barcode creator for Android Control to generate, create QR Code image in Android applications. www.OnBarcode.comRecognize Data Matrix ECC200 In .NET Using Barcode recognizer for Visual Studio .NET Control to read, scan read, scan image in .NET framework applications. www.OnBarcode.comBarcode Scanner In Java Using Barcode reader for Java Control to read, scan read, scan image in Java applications. www.OnBarcode.comMatrix 2D Barcode Encoder In .NET Using Barcode printer for VS .NET Control to generate, create Matrix image in VS .NET applications. www.OnBarcode.comCreate Barcode In Java Using Barcode maker for Android Control to generate, create Barcode image in Android applications. www.OnBarcode.com |
|