Click here to close now.

Welcome!

Java Authors: Liz McMillan, Carmen Gonzalez, Elizabeth White, Ian Khan, Ruxit Blog

Related Topics: Java

Java: Article

Reporting Made Easy with JasperReports and Hibernate

JasperReports and Hibernate in Web applications

More extensive solutions to using Hibernate with JasperReports, including the use of reflection instead of the name mapping method used in HibernateDataSource, can be found on the Hibernate Web site www.hibernate.org/79.html. Also of interest in this area is the report optimization implementation advocated by John Ferguson Smart in his article "Hibernate Querying 103: Using Hibernate Queries with JasperReports" (see Resources).

Exporting Reports to PDF and XLS Formats in Web Applications
After compiling and filling a JasperReport report exporting it is a fairly simple and straightforward process using the net.sf.jasperreports.engine.JRExporter interface implementations provided. JasperReports can export data to PDF, XLS, CSV, RTF, HTML, and XML from the same report design using the appropriate implementation of the JRExporter interface. The PDF and XLS formats are two of the most common export formats and examples of exporting to these formats from within a Web application can be found in the source code for this article. PrintServlet exports to PDF, while DataExtractServlet exports the same data to an XLS format file.

PrintServlet (see Listing 9) is a an example servlet implementation class using JasperReports to export a report to PDF format. JasperReports makes use of the Open Source iText PDF creation library (see Resources) to generate PDF format files. Once the report is compiled in PrintServlet, the PDF is created and streamed to the Web browser ready for printing using the runReportToPdfStream(InputStream inputStream, OutputStream outputStream, Parameters params, Connection connection) method implemented by the JasperRunManager facade class.

DataExtractServlet (see Listing 10) is an example servlet implementation class using JasperReports to export a report to the XLS format. JasperReports makes use of the Apache POI library (see Resources) to generate XLS format files. Once the report is compiled in DataExtractServlet the XLS file is created in memory and a save dialog is displayed to the user. The servlet uses net.sf.jasperReports.engine.export.JRXlsExporter, one of the concrete implementations of the JRExporter interface provided by JasperReports to export the report. The parameters for exporting the report are initialized using JRXlsExporterParameter variables to set the filled report (JRXlsExporterParameter.JASPER_PRINT) and the output stream (JRXlsExporterParameter.OUTPUT_STREAM) - which is the response object that has had its content type and header set so that the file will be made available to the user for saving rather than displayed as in the PrintServlet example when exportReport() is called.

Useful Hint: By default JasperReport puts page headings at the top of every 'page' of data. When exporting to an XLS format this breaks up the continuous data in a worksheet that contains more than a single 'page' of data. Data continuity can be maintained by passing the type of output format as a parameter to a report template combined with a <printExpression> element based on the passed parameter placed in the <pageHeader> element. The <printExpression> below will result in only the page headings being output to a 'page' if the report is processing the first page when the output format isn't PDF and on every 'page' for PDF output formats.

<printWhenExpression>
<![CDATA[$V{PAGE_NUMBER}.intValue() == 1
|| $P{REPORT_TYPE}.equals("PDF")
? Boolean.TRUE : Boolean.FALSE]]>
</printWhenExpression>

Creating Reports Is Easy and Fun with JasperReports
Hopefully this article has whetted your appetite for exploring the world of report generation using JasperReports, or if you've already discovered JasperReports, that it's provided some ideas on how to delve into creating custom data sources or using new export formats. Understanding and mastering the implementation of the required JRDataSource methods next() and getFieldValue(JRField jrField) opens up any data source for use in generating reports with JasperReports.

Creating reports with JasperReports is made even simpler by some useful tools. iReport (see Resources), an excellent JasperReports template creation tool that allows visual report designs in a GUI application can be used by non-developers to create the JasperReport designs. It also offers substantial developer-focused functionality such as data source connectivity to create report previews outside of an application. JasperAssistant (see Resources), while not Open Source has the advantage of being an Eclipse plug-in for developing JasperReport templates in a similar GUI manner, albeit more developer-oriented. Both offer the benefit of being able to prepare a report design, which can then be provided to a developer for filling, relieving him of the tedious presentation aspect of report generation.

This article has barely scratched the surface of JasperReports' extensive use and functionality but hopefully it's introduced some developers to an extremely useful tool in any Java developer's arsenal. JasperReports can even produce charts and graphs, as well as including images in reports that increase the richness and presentation of an applications reporting system. JasperReports is a powerful API that can take a reporting system to the next level.

Resources

  1. JasperReports Ultimate Guide (Version 2.0), Teodor Danciu, JasperSoft Corporation.
  2. JasperReports Web site - http://jasperreports.sourceforge.net
  3. iReport Website - http://ireport.sourceforge.net
  4. JasperAssistant Web site - www.jasperassistant.com
  5. Hibernate Web site - www.hibernate.org
  6. Using JasperReports with Hibernate - www.hibernate.org/79.html
  7. Hibernate Querying 103: Building Reports with JasperReports - www.javalobby.org/articles/hibernatequery103/?source=archives
  8. iText Website - www.lowagie.com/iText/
  9. Apache Jakarta POI Web site - http://jakarta.apache.org/poi/

More Stories By Peter Sellars

Peter Sellars is the lead devloper at Netbyte Internet Ltd
(www.netbyte.com) in Auckland, New Zealand. His main interests are project
automation and application architecture. He aims to simplify developer jobs by
implementing tools that enable them to utilise their time better. He
enjoys playing soccer and tenpin bowling.

Comments (8) View Comments

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


Most Recent Comments
Abhilash.T.G 10/01/07 10:40:22 AM EDT

Very informative at the same time simple presentation.

Rob K 02/27/06 09:00:51 PM EST

ant build runs (compiles) the reports, looks like directory tree good from build, but doesn't create a .war file?

anyone offer assistance?

also, anyone figure out how to run this under ireport 1.1 and hibernate v3?

thanks
rob

Rob K 02/27/06 01:26:22 PM EST

seems to be very 'glossed' over in terms of what versions of the products are used or setup...

1. like why is this hibernate v2 and not v3?
2. what versions of jasper & ireport are being used?
3. how is a datasource configured for hibernate via ireport?

too much missing that's beyond the code (but would love to hear the 'rest of the story')

rob

Yvonne Gevers 02/27/06 05:23:32 AM EST

Hi,

If I want to put the result of the example into a jsp page, but I don't know how to do this. Can you give me an example of this?

Thank you.

Yvonne

James Nixon 02/20/06 03:39:19 PM EST

http://res.sys-con.com/story/jan06/171467/sellars1101.zip

I found the source by following the "See Listing 1" link on the first page.

Jose Gulisano 02/10/06 12:57:45 PM EST

Any news on source code? I t would really help given the well written article.

Thanks!!

Ashutosh Mittal 02/09/06 12:06:51 PM EST

Where to download the source code for this excellent article?

news desk 01/25/06 09:52:50 PM EST

JasperReports is a valuable and viable reporting solution for Java Web applications. It simplifies report generation through the use of XML report templates that are then compiled using the JasperReports engine for use in reporting modules. These compiled report templates can be filled by data received from a variety of sources including relational databases. JasperReports can be integrated into Web applications and create reports in several file formats including PDF and XLS.

@ThingsExpo Stories
The only place to be June 9-11 is Cloud Expo & @ThingsExpo 2015 East at the Javits Center in New York City. Join us there as delegates from all over the world come to listen to and engage with speakers & sponsors from the leading Cloud Computing, IoT & Big Data companies. Cloud Expo & @ThingsExpo are the leading events covering the booming market of Cloud Computing, IoT & Big Data for the enterprise. Speakers from all over the world will be hand-picked for their ability to explore the economic strategies that utility/cloud computing provides. Whether public, private, or in a hybrid form, clo...
Internet of Things (IoT) will be a hybrid ecosystem of diverse devices and sensors collaborating with operational and enterprise systems to create the next big application. In their session at @ThingsExpo, Bramh Gupta, founder and CEO of robomq.io, and Fred Yatzeck, principal architect leading product development at robomq.io, will discuss how choosing the right middleware and integration strategy from the get-go will enable IoT solution developers to adapt and grow with the industry, while at the same time reduce Time to Market (TTM) by using plug and play capabilities offered by a robust I...
IoT is still a vague buzzword for many people. In his session at @ThingsExpo, Mike Kavis, Vice President & Principal Cloud Architect at Cloud Technology Partners, discussed the business value of IoT that goes far beyond the general public's perception that IoT is all about wearables and home consumer services. He also discussed how IoT is perceived by investors and how venture capitalist access this space. Other topics discussed were barriers to success, what is new, what is old, and what the future may hold. Mike Kavis is Vice President & Principal Cloud Architect at Cloud Technology Pa...
Buzzword alert: Microservices and IoT at a DevOps conference? What could possibly go wrong? Join this panel of experts as they peel away the buzz and discuss the important architectural principles behind implementing IoT solutions for the enterprise. As remote IoT devices and sensors become increasingly intelligent, they become part of our distributed cloud environment, and we must architect and code accordingly. At the very least, you’ll have no problem filling in your buzzword bingo cards.
SYS-CON Events announced today that CodeFutures, a leading supplier of database performance tools, has been named a “Sponsor” of SYS-CON's 16th International Cloud Expo®, which will take place on June 9–11, 2015, at the Javits Center in New York, NY. CodeFutures is an independent software vendor focused on providing tools that deliver database performance tools that increase productivity during database development and increase database performance and scalability during production.
SYS-CON Events announced today the IoT Bootcamp – Jumpstart Your IoT Strategy, being held June 9–10, 2015, in conjunction with 16th Cloud Expo and Internet of @ThingsExpo at the Javits Center in New York City. This is your chance to jumpstart your IoT strategy. Combined with real-world scenarios and use cases, the IoT Bootcamp is not just based on presentations but includes hands-on demos and walkthroughs. We will introduce you to a variety of Do-It-Yourself IoT platforms including Arduino, Raspberry Pi, BeagleBone, Spark and Intel Edison. You will also get an overview of cloud technologies s...
SYS-CON Events announced today that Creative Business Solutions will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Creative Business Solutions is the top stocking authorized HP Renew Distributor in the U.S. Based out of Long Island, NY, Creative Business Solutions offers a one-stop shop for a diverse range of products including Proliant, Blade and Industry Standard Servers, Networking, Server Options and Care Packs. As a trusted supplier, CBS guarantees quality controlled stock levels thanks to an Auto...
SOA Software has changed its name to Akana. With roots in Web Services and SOA Governance, Akana has established itself as a leader in API Management and is expanding into cloud integration as an alternative to the traditional heavyweight enterprise service bus (ESB). The company recently announced that it achieved more than 90% year-over-year growth. As Akana, the company now addresses the evolution and diversification of SOA, unifying security, management, and DevOps across SOA, APIs, microservices, and more.
Can call centers hang up the phones for good? Intuitive Solutions did. WebRTC enabled this contact center provider to eliminate antiquated telephony and desktop phone infrastructure with a pure web-based solution, allowing them to expand beyond brick-and-mortar confines to a home-based agent model. It also ensured scalability and better service for customers, including MUY! Companies, one of the country's largest franchise restaurant companies with 232 Pizza Hut locations. This is one example of WebRTC adoption today, but the potential is limitless when powered by IoT.
SYS-CON Events announced today that Optimal Design, an Internet of Things solution provider, will exhibit at SYS-CON's Internet of @ThingsExpo, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Optimal Design is an award winning product development firm offering industrial design and engineering services to the consumer, medical, and defense markets.
Chuck Piluso will present a study of cloud adoption trends and the power and flexibility of IBM Power and Pureflex cloud solutions. Speaker Bio: Prior to Data Storage Corporation (DSC), Mr. Piluso founded North American Telecommunication Corporation, a facilities-based Competitive Local Exchange Carrier licensed by the Public Service Commission in 10 states, serving as the company's chairman and president from 1997 to 2000. Between 1990 and 1997, Mr. Piluso served as chairman & founder of International Telecommunications Corporation, a facilities-based international carrier licensed by t...
There are lots of challenges in IoT around secure, scalable and business friendly infrastructure for enterprises. For large corporations, IoT implementations are one of the top priorities of the decade. All industries are seeing a competitive need to sustain by investing in IoT initiatives. The value addition comes from improved customer service, innovative product and additional revenue streams. The data from these IP-connected devices can be leveraged for a variety of business applications as well as responsive action controls. The various architectural building blocks of an IoT ...
GENBAND introduced its Real Time Communications (RTC) Client for Lync* to seamlessly combine real-time communications with Lync Instant Messaging (IM) and Presence. “We’re shaking up the economics of delivering Unified Communications (UC) and offering a compelling way to integrate previously bespoke communications technologies,” said Carl Baptiste, GENBAND’s Senior Vice President, Enterprise Solutions. “We’re offering enterprises the best of both worlds by combining our own high availability voice, video and collaboration with Lync’s IM and Presence; creating a single, web centric, client. O...
The list of ‘new paradigm’ technologies that now surrounds us appears to be at an all time high. From cloud computing and Big Data analytics to Bring Your Own Device (BYOD) and the Internet of Things (IoT), today we have to deal with what the industry likes to call ‘paradigm shifts’ at every level of IT. This is disruption; of course, we understand that – change is almost always disruptive.
After making a doctor’s appointment via your mobile device, you receive a calendar invite. The day of your appointment, you get a reminder with the doctor’s location and contact information. As you enter the doctor’s exam room, the medical team is equipped with the latest tablet containing your medical history – he or she makes real time updates to your medical file. At the end of your visit, you receive an electronic prescription to your preferred pharmacy and can schedule your next appointment.
The WebRTC Summit 2015 New York, to be held June 9-11, 2015, at the Javits Center in New York, NY, announces that its Call for Papers is open. Topics include all aspects of improving IT delivery by eliminating waste through automated business models leveraging cloud technologies. WebRTC Summit is co-located with 16th International Cloud Expo, @ThingsExpo, Big Data Expo, and DevOps Summit.
@ThingsExpo has been named the Top 5 Most Influential M2M Brand by Onalytica in the ‘Machine to Machine: Top 100 Influencers and Brands.' Onalytica analyzed the online debate on M2M by looking at over 85,000 tweets to provide the most influential individuals and brands that drive the discussion. According to Onalytica the "analysis showed a very engaged community with a lot of interactive tweets. The M2M discussion seems to be more fragmented and driven by some of the major brands present in the M2M space. This really allows some room for influential individuals to create more high value inter...
SYS-CON Events announced today that Liaison Technologies, a leading provider of data management and integration cloud services and solutions, has been named "Silver Sponsor" of SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York, NY. Liaison Technologies is a recognized market leader in providing cloud-enabled data integration and data management solutions to break down complex information barriers, enabling enterprises to make smarter decisions, faster.
Participants will reach the final if their IoT solution is liked. A community vote will determine the best solutions submitted in each country, after which an expert jury will select the national winners and the best international IoT solution. Each country's best solution can win a national marketing campaign worth up to €30,000 and become a partner in Deutsche Telekom's participating markets. The winning international solution can become partner of Deutsche Telekom Group across all eight countries and reach out to a potential of 10,8 million business customers. Deutsche Telekom Group has a...
Recent technology advances in miniaturization has positioned the wearables as the pinnacle of technology convergence with the human body. We inquire if wearables are mere standard miniaturized devices extended with the connectivity and present our views on considerations like design, applications, performance, efficiency, interoperability, usage scenarios, human device interaction and consequent trade-offs enabling wearables to impart optimal value.