How do I generate reports in Java?
Solution 1
Well, first of all, if you don't want to use any of the java PDF/reporting libraries, you have to understand what is a PDF.
Start here with an article about the structure of a PDF, then go here for the complete, raw reference of the PDF format.
Hint: this is very hard. PDF is a print/display-oriented format and really complex. Another option is generating an HTML and using some tool to generate the PDF in the end. This is usually easier, as HTML is a far simpler format than PDF.
HTH!
Solution 2
Try itex API. To use IText PDF API for Java you must first download the IText JAR file from the IText website (http://itextpdf.com/), and include it on your application class path:
http://tutorials.jenkov.com/java-itext/getting-started.html
user2525364
Updated on July 18, 2022Comments
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user2525364 almost 2 years
How do I generate reports in Java using IO?
I want to generate PDF files with database records.
At the moment I have something like this...
try{ ResultSet rs = ps.executeQuery(); while(rs.next()){ FileOutputStream fos = new FileOutputStream("Desktop/Test.pdf"); ObjectOutputStream out = new ObjectOutputStream(fos); out.writeChars("Name of user: "); out.writeChars("Age: "); out.close(); } } catch (IOException ioe){ }
It keeps saying that the PDF file is corrupted.
I would greatly appreciate it if someone could help me out here.
Edit: I do not want to use iReports/JasperReports/iText/other report generators.
Many thanks