Book Image

JasperReports 3.5 for Java Developers

Book Image

JasperReports 3.5 for Java Developers

Overview of this book

Do you want to create easily understood, professional, and powerful reports from disordered, scattered data using a free, open source Java class library? If your answer is yes, this book on JasperReports is what you are looking for. JasperReports is the world's most popular embeddable Java open source reporting library, providing Java developers with the power to easily create rich print and web reports. The book has been fully updated to use JasperReports 3.5, the latest version of JasperReports. Previously accepted techniques that have now been deprecated have been replaced with their modern counterparts. All examples in the book have been updated to use XML schemas for report templates. Coverage of new data sources that JasperReports now supports has been added to the book. Additionally, JasperReports can now export reports to even more formats than before and exporting reports to these new formats is covered in this new edition of the book. This book shows you exactly how to get started, and develop the skills to get the most from JasperReports. It introduces you to the latest version of JasperReports, and gets you creating complex and elegant reports. The book steers you through each point of report setup, to creating, designing, formatting, and exporting reports with data from a wide range of data sources, and integrating JasperReports with other Java frameworks. Starting with the basics of adding reporting capabilities to your application and creating report templates, you will first see how to produce your reports through the use of JRXML files, custom ANT targets, and then preview them in both the web browser and the native browser of JasperReports. Getting data into your reports is the next step, and you will see how to get data from a range of data sources, not only databases, but XML files, and Java Objects, among others. You will create better looking reports with formatting and grouping, as well as adding graphical elements to your reports. You will export your reports to a range of different formats, including PDF and XML. Creating reports will be made even easier with a walkthrough of the iReport Designer visual designing tool. To round things off, you will see how to integrate your reports with other Java frameworks, using Spring or Hibernate to get data for the report, and Java Server Faces or Struts for presenting the report. All examples have been updated to use XML schemas. New export formats, such as OpenDocument Text, and new data sources now supported by JasperReports are now covered in this updated edition.
Table of Contents (17 chapters)
JasperReports 3.5 for Java Developers
Credits
About the Author
About the Reviewers
Preface
Index

Adding multiple columns to a report


JasperReports allows us to generate reports with multiple columns. Reports we have seen so far seem to have multiple columns. For example, the report we created in the previous section has a column for model, another column for tail number, and one more for serial number. However, all three of these fields are laid out in a single <band> element.

When we add multiple columns to a report, we should think of the data inside a band as a cell, regardless of how the data is laid out inside that band.

The f lightstats database we used for the examples in Chapter 4, Creating Dynamic Reports from Databases, contains the country, state, and city where an aircraft is registered. Let's create a report displaying the tail number of all aircraft registered in the state of New York in the United States. Our report will display the data in three columns. The following JRXML template will generate a report with the desired layout:

<?xml version="1.0" encoding="UTF...