Ireport Tutorial Pdf Free Download

java-pdf-logo Generating PDF files in today's enterprise applications is quite common. Doing this with Java is not an easy task as Java does not gives default api's to handle PDF files. No worries, iText jar is for you. iText is a free Java-PDF library that allows you to generate PDF files on the fly (dynamically). iText is an ideal library for developers looking to enhance web- and other applications with dynamic PDF document generation and/or manipulation. iText is not an end-user tool. Typically you won't use it on your Desktop as you would use Acrobat or any other PDF application. Rather, you'll build iText into your own applications so that you can automate the PDF creation and manipulation process.

iText (Java-PDF Library) can be used to:

  1. Serve PDF to a browser
  2. Generate dynamic documents from XML files or databases
  3. Use PDF's many interactive features
  4. Add bookmarks, page numbers, watermarks, etc.
  5. Split, concatenate, and manipulate PDF pages
  6. Automate filling out of PDF forms
  7. Add digital signatures to a PDF file

Technical Requirements to use iText

You should have JDK 1.4 or later to integrate iText PDF generation in your application.

Getting iText

Download iText jar from its home page http://www.lowagie.com/iText/download.html iText core: iText-5.2.1.jar

Generate simple PDF in Java using free Java-PDF library

It is very easy to generate a simple PDF file in Java using iText. All you have to do is to put itext.jar in your class path and paste following code in GeneratePDF.java class and compile and execute it. After you execute this, a file Test.pdf will be created in C: drive (If you are using Linux, you may want to have /usr/test.pdf as path).

          
                          package              net.viralpatel.pdf;              import              java.io.File;              import              java.io.FileOutputStream;              import              java.io.OutputStream;              import              java.util.Date;              import              com.itextpdf.text.Document;              import              com.itextpdf.text.Paragraph;              import              com.itextpdf.text.pdf.PdfWriter;              public                              class                GeneratePDF              {                              public                static                void                main                (String[] args)              {              try              { 			OutputStream file =              new              FileOutputStream(new              File("D:\\Test.pdf"));  			Document document =              new              Document(); 			PdfWriter.getInstance(document, file);  			document.open(); 			document.add(new              Paragraph("Hello World, iText")); 			document.add(new              Paragraph(new              Date().toString()));  			document.close(); 			file.close();  		}              catch              (Exception e) {  			e.printStackTrace(); 		} 	} }                      
                      Code language:            Java            (            java            )

In above code snippet we have created Document object which represents our PDF document. Also, by supplying OutputStream object to getInstance() method sends the output to OutputStream. Thus in our case we have created a output file and sent output to it.

Generate PDF as Output Stream in HTTP request

Sometime we may want to add the PDF generation functionality to a web application, where user on clicking some link or button is served with PDF output. Hence the PDF should be generated on fly and sent to client browser. Consider following simple Struts Action class which uses this mechanism to generate a dummy PDF and sent the output to browser.

          
                          package              net.viralpatel.struts.helloworld.action;              import              java.util.Date;              import              javax.servlet.http.HttpServletRequest;              import              javax.servlet.http.HttpServletResponse;              import              org.apache.struts.action.Action;              import              org.apache.struts.action.ActionForm;              import              org.apache.struts.action.ActionForward;              import              org.apache.struts.action.ActionMapping;              import              com.itextpdf.text.Document;              import              com.itextpdf.text.Paragraph;              import              com.itextpdf.text.pdf.PdfWriter;              /**  *                @author                KiranRavi_Hegde  *  */              public                              class                PdfHelloWorldAction                extends                Action              {                              public                ActionForward                execute                (ActionMapping mapping, ActionForm form, 			HttpServletRequest request, HttpServletResponse response)                throws                Exception              { 	 	Document document =              new              Document();              try{ 		response.setContentType("application/pdf"); 		PdfWriter.getInstance(document, response.getOutputStream()); 		document.open(); 		document.add(new              Paragraph("Hello Kiran")); 		document.add(new              Paragraph(new              Date().toString())); 	}catch(Exception e){ 		e.printStackTrace(); 	} 	document.close();              return              null;  	} }                      
                      Code language:            Java            (            java            )

If you notice in above code, we have passed response.getOutputStream() object to getInstance() method. Thus the output generated by iText will be sent directly to the response. Also don't forget to set the content type of the response to application/pdf.

Setting attributes of PDF using free Java-PDF library

While you generate a PDF, you may want to set its different attribute like: author name, title, file description etc. iText jar can help you to set different attributes of a PDF file. Document object provide different methods to add various attributes to a PDF file.

          
            document.addAuthor("Kiran Hegde"); document.addCreationDate(); document.addCreator("iText library"); document.addTitle("Hello World PDF");                      
                      Code language:            Java            (            java            )

Download Source Code

Java_iText_PDF.zip (1.6 MB)

Posted by: oliversespinosassa.blogspot.com

Source: https://www.viralpatel.net/generate-pdf-file-in-java-using-itext-jar/

Komentar

Posting Komentar

Postingan populer dari blog ini

Plumbing Done Wrong Blues : (7") THE BLUES BUSTERS - I'VE DONE YOU WRONG / TELL ME WHY - Regular maintenance and inspection of your kitchen can help prevent kitchen plumbing nightmares, but there are certain problems that may seem small that should be looked at by a professional.

Gambar
Plumbing Done Wrong Blues : (7") THE BLUES BUSTERS - I'VE DONE YOU WRONG / TELL ME WHY - Regular maintenance and inspection of your kitchen can help prevent kitchen plumbing nightmares, but there are certain problems that may seem small that should be looked at by a professional. . If bubbles appear while water drains, it is usually a sign of a slow drain. Odors can signify a toilet leak or a crack. See more ideas about plumbing, plumbing humor, you had one job. Just as you wouldn't go to a heart specialist to repair a bladder problem, be sure you hire the right plumber to doctor your pipes. Reconstruction of the walls and floor can present problems for a major bathroom overhaul. Tree roots that are clogging drainpipes qualifies as an emergency, as one couple discovered when an ordinary toilet flush flooded. Every person was cordial and professional. If bubbles appear while water drains, it is usually a sign of a slow drain. Follow our top 10 tips and tr
Baca selengkapnya

Kitchen Knife Block Sets : J.A. Henckels International Classic 16pc Knife Block Set ... : Ceramic coated knife block set with 5pc kitchen knives, chef knife, bread knife, slicing knife, utility knife, paring knife, acrylic stand, cutting board.

Gambar
Kitchen Knife Block Sets : J.A. Henckels International Classic 16pc Knife Block Set ... : Ceramic coated knife block set with 5pc kitchen knives, chef knife, bread knife, slicing knife, utility knife, paring knife, acrylic stand, cutting board. . $20.00 coupon applied at checkout save $20.00 with coupon. Users love shun knives for looks and. Knife set wood case olean n.y. The block sets come with integrated sharpeners so that the blades of the knives remain ready to cut at all times. It's an unobtrusive block with a traditional look to fit most kitchen styles. Block & starter sets come with all you need for cooking, cutting & preparing food of any type. This makes it two times as hard as other knives in its class as they contain about 0.3% carbon. Knife set wood case olean n.y. The cuisinart ® knife block sets are a must for meal prep. Choose from our range including brands such as global, wusthof, furi and scanpan.
Baca selengkapnya

Plug In Wall Lamp Swing Arm / 40 Beautiful Swing Arm Wall Lamps And Sconces / Ratings, based on 4 reviews.

Gambar
Plug In Wall Lamp Swing Arm / 40 Beautiful Swing Arm Wall Lamps And Sconces / Ratings, based on 4 reviews. . Swing arm light fixtures are excellent task lights for reading, needlework and pounding out a few emails before you ready to call it quits for the night. Kovacs 1 light 6.25 height led plug in wall sconce in copper bronze patina with round shade from the george's reading room collection. 14 wide x 16 high. Bronze swing arm wall lamps. Swing arm wall lamps swing arm wall sconces. Swing arm light fixtures are excellent task lights for reading, needlework and pounding out a few emails before you ready to call it quits for the night. Spend this time at home to refresh your home decor style! Put light where you need it with a swing arm wall lamp or swing arm wall light fixture from lampsusa.com. The package included set of 2 lamps. Ratings, based on 4 reviews. Pin On Lighting from i
Baca selengkapnya