如何在报告中插入两个页面 [英] How to insert two pages in report

问题描述

我遇到一个问题，我有两个 jrmxl 文件。我想加入一个 pdf 文件，但每个都在一个页面中。

I´m facing one problem, I have two jrmxl files. I want to join then in one pdf file, but each in one page.

我在下面看到了一些提示，但我不知道它们是否是最好的，因为我的第一个文件有3个乐队： title ，详细信息和摘要。第二个有详细信息和摘要。

I saw some tips below but I don´t know if they are the best, because my first file have 3 bands: title, detail and summary. The second have detail and summary.

所以我如果可能的话，我想保留这种格式，因为在摘要中有页面计数器。

So I want to keep this format if is possible, because in the summary have the page counter.

我试过这个，但我的第二页是空白的，有5厘米的高度。

I´ve tried this but my second page is blank and have 5 cm of heigth.

列表页数=新的ArrayList<>（）;

List pages = new ArrayList<>();

for (String caminhoRelatorio : caminhoRelatorios) {
    reportPath = JasperCompileManager.compileReport(caminhoRelatorio);
    reportPage = JasperFillManager.fillReport(reportPath, parameters, ds);
    pages.add(reportPage);
}

ByteArrayOutputStream baos = new ByteArrayOutputStream();
JRPdfExporter jrPdfExporter = new JRPdfExporter();
jrPdfExporter.setParameter(JRExporterParameter.JASPER_PRINT_LIST, pages);
jrPdfExporter.setParameter(JRExporterParameter.OUTPUT_STREAM, baos);
jrPdfExporter.setParameter(JRPdfExporterParameter.IS_CREATING_BATCH_MODE_BOOKMARKS, Boolean.TRUE);
jrPdfExporter.exportReport(); 

那么我需要做什么？

推荐答案

要在一个报告/ PDF中添加多个JRXML，您可以按照下面提到的方式：

To add multiple JRXMLs in one report/PDF, you can follow the below mentioned way:

考虑以下方法生成包含2个JRXML的PDF报告，其中添加了jrxmlFileNames列表

Consider the method below to generate a PDF report with 2 JRXMLs which have added in the "jrxmlFileNames" list

public static void reportGenerator(String reportType, List<String> jrxmlFileNames, 
Datasource dataSource , String SwapFile)
{

    JRConcurrentSwapFile swapFile = new JRConcurrentSwapFile(SwapFile, 102400 , 10);
    JRAbstractLRUVirtualizer virtualizer = new JRSwapFileVirtualizer(1000, swapFile, true);
    Map<String, JRAbstractLRUVirtualizer> parameters = new HashMap<String, JRAbstractLRUVirtualizer>();
    parameters.put(JRParameter.REPORT_VIRTUALIZER, virtualizer);
    try
    {
        if (reportType.equalsIgnoreCase("PDF"))
        {

            try
            {
                JasperReport jreport1 = JasperCompileManager.compileReport(ReportGenerator.class.getResourceAsStream(jrxmlFileNames.get(0)));
                JasperPrint jprint1 = JasperFillManager.fillReport(jreport1, parameters, new JRBeanCollectionDataSource(dataSource.getDataSourceFor1()));

                JasperReport jreport2 = JasperCompileManager.compileReport(ReportGenerator.class.getResourceAsStream(jrxmlFileNames.get(1)));
                JasperPrint jprint2 = JasperFillManager.fillReport(jreport2, parameters, new JRBeanCollectionDataSource(dataSource.getDataSourceFor2()));


                List<JasperPrint> jprintlist = new ArrayList<JasperPrint>();

                jprintlist.add(jprint1);
                jprintlist.add(jprint2);


                String fileName="TESTReport.pdf";
                JRExporter exporter = new JRPdfExporter();
                exporter.setParameter(JRPdfExporterParameter.JASPER_PRINT_LIST, jprintlist);

                exporter.setParameter(JRPdfExporterParameter.OUTPUT_FILE_NAME, fileName);

                exporter.exportReport();

                }
                catch(Exception e)
                {
                    e.printStackTrace();
                }
            }

            swapFile.dispose();

        }
    catch(Exception e)
    {
     e.printStackTrace();
    }

}

在上面的代码中，以下部分将帮助您添加多个JRXML

In the above code the following part will help you adding the multiple JRXMLs

    List<JasperPrint> jprintlist = new ArrayList<JasperPrint>();    
    jprintlist.add(jprint1);
    jprintlist.add(jprint2);
    JRExporter exporter = new JRPdfExporter();   
exporter.setParameter(JRPdfExporterParameter.JASPER_PRINT_LIST, jprintlist);

希望有所帮助！

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