BIRT is an open source, Eclipse-based reporting system that integrates with your application to produce compelling reports for both web and PDF.

BIRT provides core reporting features such as report layout, data access and scripting. The current released version is 2.0. Please try BIRT and tell us what you think by filling bugs reports & enhancement requests through Bugzilla as explained on the community page.

New and Notable Features within BIRT 2.0

• New BIRT Viewer
• JavaScript/Java Events And Report Debugging
• Runtime Data Source Property Binding
• Chart Builder and SVG Output
• Templates
• Libraries
• XML ODA
• URL Builder
• Multi-pass Aggregate, Sorting and Filtering
• Improved Report Performance and PDF Fidelity
• Dynamic Parameters/Cascading Parameters
• Expression Builder
• Importing of Style Sheets
• Report XML Editor
• Passing of External Object to Custom Data Sources
• Stored Procedures
• CLOB/BLOB Support
  

New and Notable Features within BIRT 2.0：
http://www.eclipse.org/birt/phoenix/project/notable2.0.php

project home:http://www.eclipse.org/birt/

new report viewer [截图]

The Viewer also supports data extraction to CSV format [截图]

export to CSV [截图]

它的report designer 还独立出来（不用依赖eclipse）直接打开　BIRT.exe　就ＯＫ．

马上小试了一下，发现之前好几点疑问都可以不用担心了，基本解决掉了:
1．AJAX的分页
　　只要自定义好报表/grid的宽以及高，实现css分页，初步感觉效果还不错（有待实际应用）

2．导出excel
      支持export to csv（虽然有中文乱码问题），另外当报表没有dataset(静态报表)时好象导不出．

3．BIRT and POJOs as datasources example
      http://tools.osmosis.gr/blog/archives/2005/06/birt_and_object.html

4．更人性化，提供四个servlet
　a. /frameset?__report=test.rptdesign   (工具条,目录导航,分页操作)
    b./preview?__report=test.rptdesign (工具条,目录导航,分页操作)

    c./run?__report=test.rptdesign
    d./download?__report=test.rptdesign

<table>
<tr>
 <td>
   <table>
    
   </table>
   <br/> <!--两个br分行标记-->
   <br/>
   <table>
    
   </table>
 </td>
</tr>
</table>

       解决方案：
       好在jasperreport还提供了很好的扩展方案.它允许我们自定义分页方式（就是说在两页/table之间能让我们放自己的代码），自己定义betweenPagesHtml 就ＯＫ了，可以能过ＣＳＳ定义分页．在这里，我就直接改它代码算了．大家可以自己选择.
    
net.sf.jasperreports.engine.export.JRHtmlExporter

<!--CSS代码-->
pageEnd {page-break-after:always}

if (betweenPagesHtml == null)
                        {
                            writer.write("<br class=\"pageEnd\">");   // 原来是两个 <br/>
                        } else
                        {
                            writer.write(betweenPagesHtml);
                        }